Is your heating system a gas furnace?

1. Blower fan uses high speed for cooling and lower speed for heating. 

2. Gas furnace has an inducer motor to vaccume your furnace exhuast out.

More detail infos are needed for further debug. You may ask your HVAC guy what motor he want to replace. 

所有跟帖： 

• 谢谢热心回复，明天来修的时候我问问 -chuqi- ♂ (0 bytes) () 10/08/2023 postreply 15:52:23

• 千万别问，问了人家知道你是一窍不通，要狠狠宰你。 -柠檬椰子汁- ♂ (0 bytes) () 10/08/2023 postreply 16:11:57

• 谢谢柠檬提醒，他今天已经给我报价了，parts+labor $482 -chuqi- ♂ (120 bytes) () 10/08/2023 postreply 17:22:57

• Inducer motor like pegasus0 said. Safety feature. If exhaust -RomaVacation- ♂ (202 bytes) () 10/08/2023 postreply 18:37:33

• 换了个gas valve，你还不知道自己的机器是gas heat还是electric heat？ -柠檬椰子汁- ♂ (0 bytes) () 10/08/2023 postreply 18:40:48

• Depend on your local weather and how old is your HVAC system -pegasus0- ♂ (1095 bytes) () 10/08/2023 postreply 19:42:26

• Some inducer motor has capacitors and they could go bad too. -RomaVacation- ♂ (73 bytes) () 10/08/2023 postreply 22:08:16