We had an "issue" with our 2020 Hideout 28BHS TT that turned out to be a quirk of the model. I thought I share in case anyone else has experienced the same problem and hopefully save them some head scratching.
Our TT's Dometic A/C worked great for about 9 months and then began to only work intermittently. Some trips the A/C would work great, others it wouldn't turn on and only make a clicking noise. We had a few other minor issues with the TT so I decided to take it to the dealer before the warranty expired.
The service team was great, but couldn't replicate the issue with the A/C. They suggested it was user error and that it wouldn't work on anything less than a 30 amp circuit as a safety feature on the A/C unit. The A/C runs through a 20 amp circuit in the TT and I'd swear I had run if just fine from the 20 amp circuit I use for shore power at my home, but the service team convinced me that there was no issue and the A/C would only run on 30 amps.
I took the TT home and we headed out to the Eastern Sierras for some BLM camping. After a week of hot July camping in the dirt, we decided to stop at an RV park in Paso Robles, CA for some pool time and A/C. Once there, where the temp was close to 100F, and plugged into the 30 amp service... No A/C! Just the clicking sound.
At this point, our factory warranty had expired and I reached out to Dometic, but they just suggested I take it back to the dealer.
Fast forward to a few days ago and we are camping at another RV park with 30 amp service. I decided to tinker with the A/C and then it hit me, the reason why the A/C only worked some of the time.
The TT is equipped with an onboard vacuum and whenever you start it up, the microwave turns off completely and automatically. The vacuum and microwave are on the same circuit breaker and a built in safety prevents them from running simultaneously. The TT is also equipped with an electric fireplace which has a residential style light switch as a master cut off hidden in the shelf above the fireplace. I flipped the switch off, killing the power to the fireplace and the A/C fired right up. The A/C and the fireplace are on the same circuit. I smacked my forehead and laughed. I couldn't believe I hadn't thought of that! Anyway, it seems super simple, but it took me 6 months and a lot of frustration to figure it out.
Hopefully my adventure in RVing will save someone else some frustration.
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