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The code light on my Trane furnace flashes 4 times, it is an open temperature limit circuit. Can some tell me what that means?

Post created: 2016-02-25 Type of Equipment: Furnace Views: 128

This question was created on the page: https://www.furnacecompare.com/furnaces/trane/xr90.html.

Just looked up what 4 flashing lights ment the code is open temperature limit circuit can anyone tell me just what does that mean and how to fix it if possible



On 2016-02-25 Gary wrote:

This error code usually means there is an air flow problem. Possible causes are a dirty air filter, a faulty blower motor, or a problem with the control board. A dirty filter can usually be replaced by the homeowner, but a blower or control board problem usually will require the skills and training of a heating contractor. If changing your furnace's filter does not take care of the problem and you'd like to contact a contractor to take a look at it, we can help you find one, here.

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