Light blinking on PCP
I have an Amana Furnace model AMV90704CXBA furnace.
The problem is intermitten, the furnace comes up to temp that is called for on the thermo, then shuts down normaly. After that it won't start back up, only the fan runs and blows unheated air.
The service people came out and replaced a vaccum switch...
A week later the same problem. Came out again and said they found a "loose wire". Turned the furnace on at the furnace basement switch and the unit ran back up to normaly functuning then shut off when the thermo temp was reached.
Next cycle....... we are not back to the fan blowing unheated air and no heat. To get the furnace on I have to turn the furnace off at the furnce switch then turn it back on again.
And we are good for one heating cycle. ( repeat as necessary)
The light on the PCB blinks 5 times.
Service people left and I don't think they know how to fix it.