Rinnai Heater Red Flashing Light [5 Easy Steps To Fix]

Rinnai heater red flashing light means that the filter is blocked. As a result, you may find your Rinnai heater making loud noise besides noticing red flashing lights.

To solve this issue, you have to clean the filter. It is very easy to clean the Rinnai heater filter. You just need to pull it out from its place and reinstall it after giving it a thorough clean. In this article, we will show you how to complete this process easily in 5 steps.

Rinnai Heater Red Flashing Light [5 Easy Steps To Fix]

For fixing the Rinnai heater red flashing light, here is the step-by-step guide to cleaning the filter.

Step 1: Turn Off The Device

You have to turn off the Rinnai heater first. You can either pull its cord out of its outlet or press the power button once to turn the device off.

Step 2: Locate The Filter

Now you have to find the blocked filter. For this, you have to go to the back of the heater and unscrew the device’s back panel.

After this, you will be exposed to a control panel. Take a look at the 4 inches back of the control panel, and you will see the Rinnai heater filter there.

Step 3: Pull Out The Filter

This part can be a bit tricky. You basically have to be careful at this point. Reach out to the filter, grab it tightly with bare hands or with something else, and then lightly pull it out. 

Step 4: Clean The Filter

Now comes the main part of the process, cleaning. It is very easy to do. Just take a vacuum cleaner, turn it on, and blow it on the blocked filter. This should clean everything.

Step 5: Put Everything Back On

It’s time to pack it all up. Firstly, carefully put the filter back in its place. Then screw the control panel before turning the device on.

Once you turn it on, there shouldn’t be any red flashing light on your Rinnai heater. 


Why does my Rinnai heater keep turning off?

The most common reason why the Rinnai heater keeps turning off can be a faulty control board.

How do you turn on an old Rinnai heater?

To turn on an old ( 2001 ) Rinnai heater, you have to turn the control knob to the “Ignition Press” setting. 

Why is my Rinnai heater beeping?

Rinnai heater beeping means there is an error code displayed on the heater. 

Do I need to service my Rinnai gas heater?

If your heater is not running smoothly, or if your heater is 2/3 years old, you should go for heater service from Rinnai.

Does Rinnai have a pilot light?

No, Rinnai doesn’t have a pilot light. They have direct-spark electronic ignition.

To Conclude:

Rinnai heater red flashing light is a very common issue. However, many people don’t know the solution to it. Fortunately, you know all about it now. Just follow what we discussed here, and you are good to go.

However, if you face any trouble, let us know in the comment below.

About William

William is the founder of Fireplacehubs.com. He has real life practical skills in fixing smoker & heating appliance issues. He loves to share his knowledge & helps others in fixing their appliances & saving their money. William firmly believes that anyone can repair his or her unit with the correct guidance & knowledge. See more at about us.

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