[DIY] Re: Home AC question

 

A/C couple of possibilities:  

1) If the inside coil is dirty, (OR the inside blower motor/ fan quits intermittently, say cycling on thermal), it can freeze the coil and be mistaken for being low on freon; 

2) If the outside fan is intermittent or normal/ slows down, it can cause some wacky problems.  On one, I would not have know it was running slow, except I was standing there when it slowed down (and it was 1-speed motor); this causes compressor overload/ compressor cycling on thermal and loss of cooling.... maybe intermittent cooling.  

3)  On one I worked on, it was blowing 75deg air, compressor pegged my gages out... apparently, during previous 3-6-weeks w/ 2-3 techs, one had added freon that it did not need, next found/ replaced bad condenser fan motor, It pegged out my gages when I connected and damaged one gage; I ended up cleaning condenser coils and removing several (2-4?) pounds of freon, and left it cooling with a cool house.  Fortunately for me, it was a cooler evening, not a 100-deg day. 

*** In tech defense, it is EASY to make mistakes in 100-deg weather, when you really do not want to crawl into a dirty 130+deg attic to check those things :-( ... and you have another 6-12 customers waiting

Terry
thenne1713@aol.com

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Posted by: Terry <thenne1713@aol.com>

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