heater relay pcb timer.check all wiring for continuiety/breaks/ before suspecting above.isn't there two stats on that model T/stat.check for a/c feed to T/stat.check for a/c at heater connectors.check for a/c on forward line of pcb/relay.if you don't possess a multimeter then you will not be able to test thoroughly .
mech monster
November 2011
howtomendit.com for free repair help, information and advice.
