请教一下空调可以启动冷气却无法turn on heating是怎么回事

c
chuqi
楼主 (文学城)

HVAC cooling没有问题,但heating无法启动。请修空调的看了扔下一句要换motor就赶下家去做事了。 想请教一下懂的大侠们,motor坏了的话不是应该冷气热气都启动不了吗?请问为什么冷气没问题,热气却不能turn on呢?

p
pegasus0
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. 

c
chuqi
谢谢热心回复,明天来修的时候我问问
柠檬椰子汁
千万别问,问了人家知道你是一窍不通,要狠狠宰你。
c
chuqi
谢谢柠檬提醒,他今天已经给我报价了,parts+labor $482
R
RomaVacation
Inducer motor like pegasus0 said. Safety feature. If exhaust

is not pumped out, main blower fan/motor won't be turned on. Error LED code can tell you possible problem. 

Reset power to see if heater could run short period of time. 

柠檬椰子汁
换了个gas valve,你还不知道自己的机器是gas heat还是electric heat?
p
pegasus0
Depend on your local weather and how old is your HVAC system

You should have a gas furnace for heating. In warmer place such as Texas. The AC cooling will normally last about 12 to 15 years and furnace will last about 20 to 30 years (Your blower motor and inducer motor are in the furnace box). If you system is under 10 years old, you may consider a repair. 

Put you thermostat fan control on "Fan on" position, if you feel reasonable strong air blowing out from your AC register vent, your blower motor most likely is good. $482 is a little bit too expensive for a inducer motor replacement.

Now is slow season for AC techs, you should have time to shop around or You may have another AC tech to get a second opions. 

Or it may be a good time to make it a DIY project.  both motor should only cost you around $100 and blower motor replacement will take a little bit more effort and time. 

R
RomaVacation
Some inducer motor has capacitors and they could go bad too.

It would be easier to buy inducer motor and drum together. 

S
Simiguy
花十块钱换Capacitor,就可以了。与外面的AC一样,电容易坏。motor 不转,电容换一个