Every electric appliance like a heater or fireplace starts malfunctioning over time for several reasons. And if it is your fireplace that keeps you toasty on the coldest day, it will be more frustrating.
Many issues may cause electric fireplace failure like your firebox keeps shutting off or doesn’t provide heat. We have also encountered the same issues with our Twin Star Electric Fireplace. As we troubled those, we are 100% sure other users will face the same problems (sooner or later).
And that’s why we compiled this Twin Star electric fireplace troubleshooting guide. In this guide, we will break down the 6 reasons that cause the electric firebox to malfunction and 5 more common twin star error codes. We also provide their simple solutions. So, start scrolling and continue to read without skipping……
Table of Contents
- Twin Star Electric Fireplace Troubleshooting
- 1. Fireplace Keeps Shutting Off
- 2. Fireplace Won’t Turn On
- 3. Fireplace Not Turning Off
- 4. Heater Not Blowing Heat
- 5. No Power, Logs Not Glowing
- 6. Remote Control Not Working
- 7. Logs Glowing Without Flame Effect
- 8. Downlight LCD Not Lighting Up
- 9. Power Cord Getting Hot
- 10. Flame Works Without Heat & Emberbed flashes If The Heater Button is pressed
- 5 Common Twin Star Fireplace Error Codes and Solutions
Twin Star Electric Fireplace Troubleshooting
No matter what brand your electric fireplace comes from, it has a lot of components. Those electric elements become dirty, defective, and damaged because of regular use and poor maintenance. In return, it begins to malfunction. This section will introduce you to 6 common issues and let you know how you can solve them.
1. Fireplace Keeps Shutting Off
Most electric fireplaces come with a thermostat and overheat protection feature. The thermostat helps to keep your room temperature at a moderate level.
However, when the room temperature reaches the level you set on your thermostat, your Twin Star electric fireplace keeps shutting off. Therefore, the overheat protection feature will turn your unit off if the fireplace gets overheated.
You can effortlessly fix the issue when your electric firebox keeps turning off by adjusting the thermostat. Set it above your room temperature level.
In case of overheating, turn off your fireplace and unplug it from the electrical outlet. Then, leave the unit for some time to let it cool. Lastly, plug the unit and switch it on.
2. Fireplace Won’t Turn On
Each electric fireplace gets power by electricity. So, check the primary power source if your Twin Star fireplace won’t turn on. The firebox will never turn on if-
- You don’t turn the power switch on.
- You may not plug the electric cord into an outlet.
- The power switch on the fireplace may turn off.
- The fuse box or the breaker may get tripped.
- Defective socket or electric outlet.
To fix the issue do the followings-
- Make sure you plug the unit into an outlet and turn the switch on.
- If the fuse box or break gets damaged, replace it.
- Never plug your unit into a defective outlet.
3. Fireplace Not Turning Off
When you find your Twin Star electric fireplace is not turning off, then maybe the sensor gets malfunctioning. Don’t worry! You can simply fix the issue. How? Just go below.
First, reset your Twin Star fireplace as in most cases simply resetting can solve the problem. Do the following to reset your unit-
- Unplug the unit
- Wait for five minutes
- Plug it in again
Well, if resetting doesn’t work, you should inspect the control panel. Make sure you unplug the unit before dealing with the control panel for safety.
Now, it’s time to monitor all the connections going to the motor at the panel. Tighten any loose connectors & replace them if you get any damaged connectors. Hope you will get the solution.
4. Heater Not Blowing Heat
Because of the thermostat feature, your electric fireplace heater doesn’t blow hot air. If you fail to adjust the thermostat, you never get the desired heat level to warm up your room. Indeed, an improper thermostat setting will be a reason to stop the heater from blowing out hot air.
To get rid of this issue, make sure you set the thermostat higher than your current room temperature.
5. No Power, Logs Not Glowing
The logs never glow until you don’t plug the unit into a standard outlet. Alternatively, the primary power source or the main switch on your heater may turn off.
Ensure you plug your electric unit into a standard 120-Volt outlet. Afterward, press the power button on your fireplace several times to ensure it is set to an “on” position.
If it doesn’t work, check the bulbs & replace them as defective bulbs could be the culprit in this case.
6. Remote Control Not Working
If the battery gets damaged, your Twin Star remote control won’t work. Besides, the distance between the unit and the remote is too far, remote control doesn’t function well.
Change the battery. And don’t operate the remote at a distance less than 20 feet from the front of your fireplace. Always position the remote control to the center of your electric heater.
Plus, press the remote control buttons with gentle pressure. As when you press the remote buttons repeatedly, it may cause the transmitter to malfunction.
7. Logs Glowing Without Flame Effect
Are your Twin Star electric fireplace logs glowing but there is no flame effect? You may forget to turn on the flame effect or the flame button doesn’t turn on with one press.
Simply press the flame button several times to solve the no-flame issue.
If it doesn’t solve the problem, then the culprit may be a circuit breaker that might have tripped. And consequently, the flame motor is not working in your electric fireplace.
In such case, do the following for fixation-
- Flip the tripped switch back on
- Check for any loose wiring connections & fix them
8. Downlight LCD Not Lighting Up
As you are here, the downlight LCD of your twin star fireplace must not be lit up. Right? Don’t worry! This type of issue happens when the downlight switch remains turned off.
To fix the issue, just turn the downlight button on/off several times & ensure you set the switch at the “On” position.
9. Power Cord Getting Hot
Loose plugs or defective wall outlet connections could be the reason behind your electric fireplace’s power cord overheating.
Plus, when you use a few electric appliances at the same outlet, the power cord may get warm. Remember, heaters pull more electricity than small appliances.
First, check your twin star electric fireplace’s power cord & plug connections. Make sure the plug connects tightly to a standard outlet.
Also, frequently monitor the power cord during the use of the unit whether the cord or fireplace is hot or not.
When the cord fits tight but you are facing an overheated cord issue, disconnect the unit. Call a certified electrician to check & replace the faulty outlet.
10. Flame Works Without Heat & Emberbed flashes If The Heater Button is pressed
Does the flame effect work but your twin star fireplace heater function doesn’t work? Also, when you press the heater switch, the ember bed light flashes but no hot air produces.
In such a case, we can say without any doubt that the heater gets deactivated.
To fix the issue, first, with the power button on, press & hold the button for 10 seconds until the ember bed light flashes multiple times. Flashing ember bed lights indicate that the heater is re-activated. For a better understanding, you can watch the video.
5 Common Twin Star Fireplace Error Codes and Solutions
Here are 5 common twin star error codes and their simple solutions:
1. Display Shows E1
If the thermostat sensor of your electric fireplace gets broken or disconnected, you can see code E1 on display.
Make sure you plug the thermostat into the main circuit board. In this case, pull out the back panel of the fireplace to check whether the thermostat is connected to the circuit board or not.
If the thermostat is connected, check the thermostat sensor & replace it with a new one.
2. Display Shows E2
When your fireplace shows you E2 on display, it means the thermostat sensor gets damaged.
- Replace the thermostat sensor to get rid of this issue.
3. Twin Star Fireplace Display Shows E3
Your Twin Star Electric Fireplace will show error code 3 if it goes to overheat protection mode. Now, you may ask- why does my electric fireplace get overheated? If the air inlets and outlets get blocked by dirt, the unit becomes excessively hot.
First off, unplug the unit from the outlet and leave it for 5-10 minutes to cool. Then, remove the blockage from the air inlets and outlets.
Now, plug your electric fireplace into a standard outlet. Monitor your firebox to figure out overheating signs. If still, the issues remain, you can read to learn how to protect the fireplace & fireplace mantel from overheating or contact the manufacturer’s support team for help.
4. Twin Star Display Shows ‘Er’
When the power cord of your electric fireplace gets overheated, the display shows the error code ‘Er’. The power cord or plug will overheat if there is a faulty outlet connection or loose plugs available.
First off, check the plug connection. If you can find the cord damaged, replace it immediately. Therefore, make sure you use a standard 120-volt outlet.
Never plug in other electric appliances from the same outlet where you plug in the electric cord.
5. Twin Star Electric Fireplace Error Code E5
When you notice E5 on your fireplace display, there is a problem either with your twin star fan or the venting. Voltage also can be the culprit that doesn’t allow the fan to spin.
Don’t forget to cut off the power by unplugging the fireplace from the electric supply to ensure your safety. Then check if there is anything that is blocking your fan.
Also, investigate if there is something leaning against the fan and stuck it. Also, make sure your fireplace gets the proper voltage to spin the fan.
How do I reset my twin star heater?
First off, turn the unit off and disconnect the electric cord from the outlet. 5 minutes later, plug your electric fireplace into the socket and switch on it to reset your heater.
Why would an electric fireplace stop work?
Your electric fireplace will not work if-
1. The fuse box gets tripped
2. Because of the over-stretched cord
How long do electric fireplaces last?
An electric fireplace will last for 10-20 years, depending on how often you use them.
Why is my electric fireplace clicking?
Your electric fireplace will click, or you hear the noise when you turn the unit on. Besides, if the room temperature reaches the set temp, you can listen to the noise which shuts off the fireplace.
Why does my electric fireplace keep beeping?
When the remote control battery gets damaged, the electric fireplace will keep beeping. It means you should replace the battery.
Are electric fireplaces noisy?
No. However, it will depend on the manufacturer.
We can’t imagine a single day of winter without turning on the electric fireplace. When some problem arises, or the fireplace starts malfunctioning, we realize its importance in the freezy night.
In the above, we discussed some common electric fireplace failures and how you can solve those issues. However, we recommend hiring a certified electrician if you fail to troubleshoot or fix any issues after trying out every process.
Now, it’s up to you! Have you ever had any issues we mentioned above? If yes, how can you fix those?
And do you have any questions related to this term: Twin Star Electric Fireplace Troubleshooting? Leave a comment below to let us know. We’ll come back with solutions ASAP.
84 thoughts on “Twin Star Electric Fireplace Troubleshooting [15 Easy Solutions]”
The lights are on ergo power is on but will not blow/heat. Why?
Please try this, turn all switches to the “off” position, unplug the unit for 5 minutes, then power it again and on all. I hope, it will work. If it doesn’t work, adjust the thermostat. Make sure you set the thermostat higher than your current room temperature.
My Twin star won’t turn off how do I change it.
The solution is given to troubleshooting 3. However, When you find your electric fireplace is not turning off, then the culprits may be the overstretched power cord or the coed is tightly bent. Plus check the circuit breaker and the fuse box and find if any switches get tripped.
Also, check your fireplace fuse and change it. And finally, plug the power cord in another socket. We hope you will get the solution.
My Twin Star model 36EB220-GRT started stinking like hot metal (like when you put metal in the microwave). We opened it up to clean it. When we pushed the button, it was sparking behind the button. Is there any fix for this? I called and there aren’t any recalls or reported problems.
The problem may be in the button. Check if any connection touches another one. If touches, make it separate. Also, clean the switch. If it doesn’t work, change it.
I hope, you will get a solution.
My twin star heaters functions all work except the heating element. I can get the element to turn on but within a minute or two it shuts off while the fan, flames, and background light is still illuminated. Can this be fixed?
Could you check the heating element if it breaks and burns out? If it is broken or burnt out, you need to change it. I hope, you will get the solution.
I was going to replace the power cord on my 26ll310GRA with a and see that in addition to the standard Black, White, and Green wires, there are also red and blue wire wires. Is the red wire tied to the black and the blue to he white?
Here you contact an professional electrician. He will check and give you the solution as it relates to electricity. Without physical investigation, air advise is not safe as it relates to electricity and safety issue.
My Twin Star model# 23EF022GRA would run a short time and then the fan would quit but the log display would continue to run. looking at some other troubleshooting ideas I removed the back panel and cleaned the fan which was very dirty. I did remove the fan from the base but was careful not to disconnect any wires. Once I finished I reattach the back panel hoping I fix the problem. Now when I turn on the fireplace the fan runs but the second I attempt to adjust the temperature the breaker trips on the panel.
Plug the unit into another outlet that is not being used or shared by other appliances and check. Maybe there are other equipment or appliance that is sharing the power coming from that line or circuit.
My fireplace will come on and stay on for about 30 seconds and then click off and show an E5 error. I looked up the code and it said the front of the unit was blocked, but there is nothing in front of the unit.
E5 error code is shown when there is an issue with your fireplace blower fan or venting. Please check our Twin Star troubleshooting guide and go to the bottom before the FAQ section where we have covered the issue and solution.
Will fan cause f3 error
Twin star shows e3 error code when your fireplace goes to overheat protection mode.
Hi! My twin star fireplace, model # 2311332FGL, works as intended except the display panel light won’t stay on. Is there a way to fix it? Thanks for your time!
Here the panel may be faulty. Contact a technician before changing the panel.
Hi I have the twinstar model 28EF020GRA.
Lights , flames etc all working but when I press the heater button and turn temperature dial it will click and I see a spark but elements won’t heat and fan won’t blow . How do I fix this ?
Thank you in advance 😊
The fuse box or the breaker may get tripped. Plus, it can happen for a defective socket or electric outlet. If the fuse box or break gets damaged, replace it. Also, check the outlet and socket.
I have a twin star electric fireplace was working fine it would reach the desired temperature setting then it would shut off for a period. Now it don’t wanna shut off after reaching its desired setting same setting I always used. It keeps running & running like it’s gonna overheat & spark a fire. What is wrong with it? I’ve cleaned it & everything. Would a can of compressed air blowing it out help.
Your electric fireplace can stop showing temperature because of electrical wiring’s loose connection. Thus, check it. Ensure the wire’s proper attachment is running to your thermostat. I hope, you will get the solution.
My electric heater will turn on but fan don’t come on and heating elements don’t get hot and the logs are flashing how can I fix this
Read this guide on why my heater fan not working and fix. Plus, check if your heating element end connection is okay or not. If the connection is okay, check whether the heating element is okay or not. If faulty, replace it.
Glad you can read the error code instruction sheet to us. I have several fireplaces and they are flashing E3. I bought a new fireplace. Changed out the whole upper panel. Basically everything and it still flashes e3. Put old one in new firebox and it worked fine. What is the issue? No one can tell me!
Showing the E3 error code means your heater is not working. Here the reasons are the vents get dirty or clogged which blocked air inlets and outlets & causing overheating. To fix it, unplug the unit and allow it to get cool for at least 5 minutes. Then clean the dust and debris of the vent area. I hope, it will fix your issue.
The fire log lights don’t come on. Low. Med or high
The bulb can be faulty. Check and replace to fix.
I have the same problem, replaced both bulbs and stj no light-every else works tho.
Mine heats but fireplace won’t light up
How will your fireplace heat if it doesn’t light up? Are you struggling with the flame effect? Please make it clear. Then I can help you to fix it.
My 28EF022GRA will not switch on with either the power button or remote. I checked the outlet for power and it’s fine. The cord looks ok, it wasn’t stretched or kinked anywhere. I unplugged it for about 10 minutes and tried again to no avail. Is there an internal circuit breaker or reset I can try?
Plugged the unit at the standard 120V outlet. Set the power at ON position. Several times press the power button. You can reset it also.
Hello. Where is the fuse box for model number 3211200GRA? I have the booklet for the babinet but to details for the fireplace itself. Thanks.
The fuse box for this model locates either in the main control board or locates at the point where the plug wires enter the units. Typically the fuse box locates near the power supply.
How do I clean inside of fireplace? It shuts off after 20 minutes
I’m sure it is dusty and dirty
You can clean the inside of your electric fireplace using a dry microfiber cloth. Avoid using any kind of cleaning products to clean its inside. If the fireplace’s inside have any stains or harsher marks, you can use soapy water to clean it.
Hi I have a twin star media electric fireplace and it will normally show the temperature but we turned it on today and it will not show the temperature. Everything else works great and it does put out heat just can’t tell what temperature you have it set too
Your electric fireplace can stop showing temperature because of electrical wiring’s loose connection. Thus, check it. Ensure the wire’s proper attachment is running to your thermostat.
My unit was working fine until recently. I’ve unplugged it to reset but that didn’t work. When I first plug it in, it displays, F1. The log lights flash on their own. Nothing else works. Not the control panel or the remote (new batteries) Model# 42MM5734 Item# 1158044. Please help! Thanks
To solve the issue, it would be wise to contact the Twin Star customer support center.
Wish you all the best.
Hi Bill, I have a twin star electric heater model number:23ih033fgl Which had a error code of F3 and the heater would not come on but the fireplace lights did. I tried vacuuming the vent areas which didn’t help. I then used my leaf blower to blow out the vents and got a lot of debris out. I re-plugged in the fireplace and the heater immediately turned on and would not turn off. I unplugged it and called customer service. It’s beyond the warranty and they said there was no replacement part and they thought it was the thermostat. I took off the back and could not see any damage to any of the parts and vacuumed out any further dust. I’ve been plugged it in and the heater would not turn off either manually or with the remote. Is this repairable or should I just throw it out?
Yes, the issue can be with your thermostat. The wiring, switches, or heating sensors are failing on your unit. Call a professional technician for help. Hope you will get the solution.
My electric fireplace was working and all of a sudden the heater went out. Flames are on and just change light intensity when we try to turn up heat. Element is not turning red at all
A blown fuse or tripped fuse could be the cause for the sudden going out of your electric fireplace’s heater. Contact a technician to check it. Replace the blown fuse if required. You should also reset your circuit breaker.
flame bar function started up noisy today. rotational noise. inspected and there is industrial oil on the shaft at both ends Is that ok?) Shaft turns freely, no excessive play in the rod shaft. noise goes away when flame is turned off
Typically, a dirty burner creates noise when the flame bar starts functioning. Clean the burner properly. And, again as you said, turn off the flame and the noise will go away.
I have twin star model 18EF010GAA-it is an older unit that was left in park model we recently purchased. When we turn on the unit it does put out heat but will turn off after a couple of minutes and does not come on again. I doubt this unit has been cleaned in some time. Could that be the problem? Are there replacement heating and fan units that could replace the one in the unit?
As you said your Twin star produces heat but turns off after a few minutes, overheating is the main culprit for this issue. When your fireplace starts to overheat, it turns off automatically. Check the manual and reset it according to the instructions. Hopefully, your problem will be solved.
Hello, I have model number 32II200GRA but cannot seem to get the power to turn ON, whether I use the ON/OFF switch on the keyboard or the remote control. What could be the issue? I verified the voltage which is fine at 120V. Is there a fuse in the housing? Could the main circuit board be faulty? What parts do I need to replace and where can I buy them?
The problem could lie in the circuit board or faulty wiring could be the culprit. Check for malfunctioning wiring. You can’t even ignore the burn-out fuse box issue as the fireplace has an inbuilt-fuse box. Check the fuse box and replace the burnt-out one if required. Also, you should replace the faulty circuit board.
how does the front window display come off. Need to clean inside display glass
I have model 3211042FGL
First, find out the 2 L-shaped brackets. You will get them at the bottom of the glass door of your fireplace. Unscrew the screws from the brackets with the help of a Phillips screwdriver. Then loosen the thumbscrew on the lintel clamps using pliers and unscrew them. Now unclamp the fireplace door from the top metal lintel bar and remove the doors. Plus, you can watch this tutorial.
Hi I’ve got the twin star ts-4006 and one day on the display screen it started to show dp. And all I can do it turn volume up and down. What might couse that?
Try resetting the fireplace and see if it gets fixed or not. If not, then contact the support center.
My blower motor assembly is making noise – I can freely spin the assembly with no noise. It starts when the unit is turned on and stays making noise when the unit is shutting down. Model 39EB500GRS. Any suggestions or help? Thank you
Check all nuts, screws, and bolts whether they are loose or not. If you get them loose, tighten them. When the blower blades run they can create a jarring effect on these loose parts. Plus, clean the blower motor assembly. If it doesn’t work, take help from the Twin Star customer service center.
Our Model TS-002 twin star fireplace won’t come on at all. Had been working, just quit. We have changed outlets, checked fuse box and cleaned inside.
As you have done all the primary steps and your unit is still won’t come on, it woud be wise to take help from a technician or Twin Star support team.
Wish you all the best.
Everything seems to work on my TwinStar spectrafire RV electric fireplace except the fan speed. It’s supposed to have five different levels but only blows on low. I need instructions on how to replace the speed module or to fix this issue
Take help from the Twin Star support team.
Wish you all the best.
There seems to be a short of some kind in my fireplace unit. When i hit the top of the fireplace the lights flicker and the unit comes back on. It is very unreliable in the state. Is there something I should check?
Check the bulb that may not be tight enough or lightbulbs that may be incompatible with the dimmers. Also, check the light plug whether it is tight or loose. Check for the faulty switch too.
First, find out which one or more is responsible for the issue and fix it.
If it doesn’t work, take help from Twin Star customer support.
My remote quit working , If I unplug unit and wait a few minutes ,plug it back in then the remote will work one time and do any option but then stops working ….(please dont say get new batteries or get closer to the unit . I got a new remote ,does the same.
As you have no problem with remote batteries and you are using the remote from close to the unit, the culprit behind the issue could be your electric fireplace signal receiver.
Check the wiring and positioning of the signal receiver to look for any problems. Plus, check the outlet where you plug your unit. If you get any problem, try to fix it. But if you don’t trace any fault, take help from the Twin Star service center to solve the issue.
The switch to the blower on my model 5500 wont go all the way on anymore. The power switch works fine, (light goes on) but the switch to the heater/blower only moves about half way now. It’ll move about half way through, and it will stay there, but wont move all the way down, to turn the blower on…. It’s not loose. Doesn’t act damaged in any other way. One day, we went to turn it on…and the switch wouldn’t work.
It might get jammed. Open it and clean it. Then see if it works or not. If not, then replace the switch.
Hi – I have a Twinstar CFS-S500 – it was working beautifully or so I thought. I looked over, plenty of heat, no fire effect. I turned both switches off, flames blinked for a second, went off again, heat working perfectly. I unplugged the unit, waited about 2 minutes, tried again. Same thing. Heat works great no flames.
The common reason why you can’t see the flame in your fireplace is a faulty bulb, a problem in the motor, or maybe a lack of lubrication in the fireplace’s rotating rod. First, you need to trace out the main reason behind the issue to fix it. It would be wise to take help from a professional.
I have a twin-star model 18WM9082. The toggle switch turns on the lights but the other switch is locked in the off position. No remote, no panel for error codes. Thanks
To solve the issue, please take help from the Twin Star service center.
I have the 36mm30608 fireplace. The logs and embers do not glow. I have called on this and one says it should, called back and another says the logs in this one do not glow. However my book on the fireplace says it is suppose to glow. I would like this verified and fixed. Please let me know as I think they are suppose to and something is faulty
To fix the issue, it would be wise to take help from a technician or your fireplace’s customer service center.
I have called fireplace service twice with no help. I just want to know if the logs and embers are suppose to glow. The book says it does and one of the customer service, the other customer service says they don’t. Which is it
I have a Twin Star Model# 28EF004GRS and the power rocker switch turns on but nothing else happens. The fuse on the circuit board is good. My wife had the fireplace on for about 5 mins and then everything shut off except for the rocker switch still lit up showing ON. What could the problem be? Thanks.
Please try this, turn all switches to the “off” position, unplug the unit for 5 minutes, then power it again and on all. I hope, it will work.
If it doesn’t work, contact the Twin Star customer service center.
Have a Twin Star Model 32II00GRA. The unit is dead. It will not turn on from the remote or control buttons. The outlet functions and the circuit breaker is nor tripped. Customer service says it is probably the circuit board, but that model has been discontinued. Any ideas where I can get a replacement part?
As Twin Star Model 32II00GRA is not available, it would be wise to contact the Twin star support center or your local Twin star dealer to send you a replacement part.
We have Model 25EF031GRA purchased in November 2015. Recently we have noticed a change. The logs still glow, but we no longer have a flame effect. The heat and fan are working fine. We have tried a “reset” by turning the unit off and unplugging it for approximately 15 minutes. Unfortunately, that did not help.
We would appreciate any assistance or advice you can provide.
Do you turn on the flame button? If yes, maybe it doesn’t turn on with one press.
Simply press the flame button several times to solve the no flame issue.
If it doesn’t work, check the circuit breaker that might have tripped. As a result, the motor flame is not working in your fireplace.
Well, first, try to flip the tripped switch back on if you get it tripped. Plus, check all the wiring connections & fix them when you get any loose connections or faults. Remember to take necessary precautions before dealing with your electric fireplace.
Hopefully, your problem will be solved.
Wish you good luck.
My heater flame lights are dim – I suspect 1 of the bulbs is burnt out. How do you replace it? Is the bulb special?
To replace the bulbs of your electric fireplace, you can watch the video.
Best of luck!
I have a 9HM900-E451 in a 144 sq ft room. It doesn’t come close to warming the sunroom like our previous unit. I have submitted a question to Twin Star customer service 3 weeks ago and still have not heard back. Is the heater too small or just not functioning. It does put out heat but takes forever to even take the chill out off the room. Can you help?
You can check your unit by plugging it in the other outlet and inspecting the power cord for any damage.
Also, check the heater’s thermostat & the heating element.
If you get no fault, then contact your local Twin Star dealer.
Best of luck!