Blinking red light on Trane furnace.Post created: 2016-03-03 Type of Equipment: Furnace Views: 134
This question was created on the page: https://www.furnacecompare.com/furnaces/trane/xl90.html.
On 2016-03-04 Gary wrote:
The blinking light is to help diagnose problems with your furnace. There may be a chart explaining the pauses and flashes of your diagnostic code on the inside of your furnace's front panel. A steadily flashing light means normal operation, but other flashes may mean there is a problem and require a call to a heating contractor. If you'd like to have a contractor take a look at this, we can help you find one, here.