听起来有两个问题：启动和制冷慢。

for 启动 problem, watch the thermalstat and see it works or not. when actual temperature is higher than the set temperature, the switch in thermalstat is activated, and you can hear a "click". Then the conditioner should start. otherwise, something may be wrong with thermalstat. To have higher confidence on this, you can measure the voltage on control module (on furnace, close to air circulating motor) and see there is 24V output from thermalstat or not. But this needs some knowledge and experience.

 

所有跟帖： 

• 谢谢. 如果重新开关电源, 空调可以启动， 有你说的click响声. 但是 -公爵兰- ♀ (181 bytes) () 06/22/2012 postreply 15:16:24

• 箱式空调， 还是furnace? 大房子？每个房间都不冷？ -毅然- ♂ (0 bytes) () 06/22/2012 postreply 16:01:32

• 回复：箱式空调， 还是furnace? 大房子？每个房间都不冷？ -公爵兰- ♀ (72 bytes) () 06/23/2012 postreply 07:29:20