Trane furnace flashing red light.Post created: 2016-03-14 Type of Equipment: Furnace Views: 114
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On 2016-03-15 Gary wrote:
A slow flash is normal. A fast, steady flash means the unit is calling for heat and is also normal. Other flashes, combined with pauses, are error codes meaning there is a problem with the furnace. There may be a diagnostic list of error codes and their meanings on the inside front panel of your furnace.
We get a lot of questions in the forum about furnaces with flashing error codes -- If you'd like to have a contractor take a look at this, we can help you find one, here.