Issue with Dometic 3314080 A/C unit
Our A/C unit. The fan motor runs fine on low, high and on mode. The compressor turns on, cools and after a short while it blows a 115 circuit breaker and has to be reset. Any ideas on what the issu...
Forum Discussion
dougrainer wrote:
1. That is NOT the Model of your AC unit. It seems to be the p/n of your 10 button CCC wall tstat.
2. How long does it take for the compressor to trip? Usually that indicates a BAD compressor and is pulling too many amps. The amps increase the longer it runs until the breaker trips. Doug
Doug, it seems like a bad season for capacitors and starts kits going bad.
TCI, you may need to call in help to check the capacitors. Start capacitors go bad when they're in the circuit too long. They make a mess when they overheat. You can check that with visual inspection. If it's bad change both the start capacitor and the relay or solid start device that controls it. The start capacitor is usually black plastic with a star washer holding the top down.
The "run" capacitor is usually a metal can. If the top is bulged at all, replace it.
The best way to test capacitors is with a meter. https://www.amazon.com/s?k=capacitor+meter+tester&crid=1GJBBK0OSKNIZ&sprefix=capacitor+meter%2Caps%2C203
