Massive Heat Wave, AC not working. - HELP
I have a Duo Therm roof AC unit. Yesterday morning it was blowing cold air, but sounded like the fan was laboring. Ultimately, fan stopped working altogether. Even with AC off and just switching fa...
Forum Discussion
In the RV A/C units, I believe it's correct to say that both the compressor and the fan must have an associated run capacitor. About 40uF for the compressor and about 7uF for the fan. They may be separate or in a combined unit. If so, the compressor terminal may say HERM for hermetically sealed compressor, coils, etc.
Then, the compressor may also have a start assist device, involving a third capacitor. But fan indeed has a run capacitor, and no start capacitor.
It's good practice to replace the capacitor when replacing a motor or compressor. Hence the Kit. Sounds like the RV parts place might have had the Kit but not the capacitor individually. Any appliance parts shop can match you up with something that'll work. Or if you have time Amazon can get one to your door. You can use two separate capacitors to replace a combined one (need a jumper to connect their Common terminals) or a separate to replace a bad half of a combined, or a combined to replace separate.
Just get one rated 370 or 440 Volts AC and match the uF value(s).
Then, the compressor may also have a start assist device, involving a third capacitor. But fan indeed has a run capacitor, and no start capacitor.
It's good practice to replace the capacitor when replacing a motor or compressor. Hence the Kit. Sounds like the RV parts place might have had the Kit but not the capacitor individually. Any appliance parts shop can match you up with something that'll work. Or if you have time Amazon can get one to your door. You can use two separate capacitors to replace a combined one (need a jumper to connect their Common terminals) or a separate to replace a bad half of a combined, or a combined to replace separate.
Just get one rated 370 or 440 Volts AC and match the uF value(s).
