rude
29-12-2012, 08:36 AM
Hey guys
Got called out to this unit today and was told someone had already changed the compressor capacitor 2 weeks ago and now the unit cuts out after running for 30 mins.
So i checked it out and found the compressor getting very hot and the unit drawing 16.8A. The name plate suggested the unit should be running at 14.6A.
I took air on temperature on the condenser and that was 37degrees C. Air off was about 48 degrees C. I also took the suction pressure and that was sitting around 480kpa suction pipe didnt really feel that cold either. Indoor Return Air temp was around 30 degrees C
After the unit was running for about 30mins it cut out and fault starting flashing on LD7 - RT overheat protection.
Now what i want to know is that fault related to the compressor over heating? And what is causing it to overheat? Could it have been the capactior that has failed caused the compressor to fail as well?
Thanks
Alex
Got called out to this unit today and was told someone had already changed the compressor capacitor 2 weeks ago and now the unit cuts out after running for 30 mins.
So i checked it out and found the compressor getting very hot and the unit drawing 16.8A. The name plate suggested the unit should be running at 14.6A.
I took air on temperature on the condenser and that was 37degrees C. Air off was about 48 degrees C. I also took the suction pressure and that was sitting around 480kpa suction pipe didnt really feel that cold either. Indoor Return Air temp was around 30 degrees C
After the unit was running for about 30mins it cut out and fault starting flashing on LD7 - RT overheat protection.
Now what i want to know is that fault related to the compressor over heating? And what is causing it to overheat? Could it have been the capactior that has failed caused the compressor to fail as well?
Thanks
Alex