[mnhoff]

My front heat exchanger heats up to temp then shuts down normally. After approx.  10 seconds it cuts in and out repeatedly until I manully turn it off, Checked with Roger and he felt the AH. is working properly but his direction was the thermostat itself.  Any way of checking a thermostat or would it be a replacement item. Any direction to buying a replacement??  It has the cooling and heating switchs in this unit. Does it have to be special to work with the older A/C units ect. It is on my 95 Newell number 372. The second post on roger berke was to check the interior thermostat sensor?  Is that the thermostat itself or is there a hidden sensor I have never seen before?  Mike