What is the red flashing light on a Trane XR90 furnace?Post created: 2016-01-28 Type of Equipment: Furnace Views: 205
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On 2016-01-28 Gary wrote:
The flashing red light is an error code, meaning something is wrong with the furnace. The sequence of blinks is a code that can be used to troubleshoot the problem. There is often a diagnostic code list explaining the sequence of blinks on the inside of the front panel.
We get quite a few 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.