Furnace - Amana GUIA115A40 Control board - White-Rodgers 50A50-298 My furnace just has the fans running non-stop and the control board is flashing an open limit switch error code. The furnace is getting good circulation and both fans seems to run fine. I cut power to it all night, in the...

I have a goodman furnace with an open limit switch code /blinking lite. Blower runs,but no flame what can I do to fix this problem?

I have a Trane XB80 furnace that has two high limit devices. About 2 months ago, I had both switches replaced because the furnace would not go into a fault condition with the technician there (of course). He said that these high limit devices are automatically resetting which makes it nigh...

Furnace is about 13 years old... we just replaced the ignighter in it last night because it was running through all the steps to run except ignighting. It fired right up and ran for about 7-8 hours... now it won't ignite at all (it is running through all the steps it needs to except for...

We have an Ultra V Tech 80 furnace. Cold air is coming out and the ignitors are not lit. Light is blinking 4 times which means high limit open. Where is this at? What needs to be done?