My Trane XR90 furnace has a red blinking light with no heat.Post created: 2016-01-29 Type of Equipment: Furnace Views: 233
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On 2016-01-29 Gary wrote:
Do you know the error code (the pattern and number of of flashes)? You may be able to find a diagnostic code list on the inside of your furnace's front panel. This will help you know what is wrong with the furnace.
We get a lot of questions in the forum about furnaces flashing error codes -- If you'd like to have a contractor take a look at this, we can help you find one, here.