Hello, all. Coach is a 2019 Thor ACE 30.2 with dual A/C units (Coleman Mach 3, I believe). Some time ago the front A/C unit stopped getting cold while in Cool mode and did nothing in Fan mode except the familiar buzz of a motor trying to spin but can't. The rear unit worked fine.
I've made an appointment to bring it in for warranty work. While double checking that I had described the issue to them correctly, I switched on the front unit. I guess I left the switch in Fan mode for a half second too long, which produced a SNAP sound inside somewhere. Now the front unit doesn't buzz in Fan mode or blow any air in Cool mode, and the rear unit doesn't turn on at all either.
- All fuses are good
- All breakers are set
- All other 110V outlets are functional
- All other 110V appliances are functional
- I can still hear what sounds like a 12V relay releasing when I move the mode off Cool on both units.
Any thoughts as to where I should check next?
I'm comfortable with 110V, and can check the compressor and capacitors; should I start there? It just sounds to me like a power supply issue, like a failed breaker - but two? No way. Is there another set somewhere other than under the bed? Thoughts? Thanks!