Carrier Weathermaker 9200 58MXA080-16
Trying the diagnose....
Have done a power on/off reset. Blower comes on for 90 sec. IDM comes on (sometimes), when it does stay on, igniter ignites, main blower comes on, heater heats to setting.
When it does not stay on (IDM) I get a code of 13.
If I tap the side of the housing unit - not the IDM - the IDM will come on and stay on - heater then heats.
Sometimes the IDM will not stay on (it tries - I can hear it)..It will start then stop, then try to start again. then nothing - code 13
Could it be:
1) IDM relay ( If I tap the housing IDM comes on - stuck relay??)
3) Bad IDM??
4) Bad Ciruit Board??