Thermostats i have sanyo stw1223c1 12000 btu air/heat unit. lately when i start the heater it gives hot air for about 5 minutes and then it starts giving colder air. Do I need a new thermostat or just a thermostar wire?

SOURCE: Electric Heater Coils Always On

We use the STW0925H! in 60 rooms on this property and have encountered similar problems that were caused by weldedd contacts on one of two relays that controls the electric strip heat. They can be replaced if needed.




PTHP's and PTACs employ thermal fuses as well as a bimetal limit stat on the heating element to limit risk if fan motor were to fail and the heating element were to remain energized. It would be wise to check that both are fuctioning properly while you are servicing the unit.

SOURCE: sanyo a/c mod#stw1223c1 when u turn on a/c u get fan only when u turn on heater u get a/c not heat

board is not sending command to correct relays on board. this would have to be verified before knowing next step would be replace board.

Testimonial: "I HAD TO WIRES CROST "