A/C stopped working after dealer fixed main fan

The111

Advanced Member
Joined
May 15, 2022
Messages
32
A/C stopped working? Check the breaker on the circuit your rig is plugged into.

The entire crossed out post below was premature. Leaving for posterity though. See my comment HERE if you want to laugh along with at me or maybe even learn how to not be an idiot yourselves. Thanks anyway for the quick attempt to help, those who responded.

Long story short, we picked up a brand new 2350LE Sunseeker 10 months ago. We had 5 PDI issues... 4 of those were cosmetic, 1 was functional: the main fan did not work. It wasn't a huge deal since the A/C did work. We spent MONTHS and HOURS on the phone getting to the point where the dealer finally had all the parts in hand and was ready to fix our unit. The fix was supposed to be done in 1 day. It is 5 weeks after that day today (fun), and we just got the RV back (after dozens of hours on the phone weekly over the past 5 weeks).

I tested the new main fan out in the parking lot. It worked fine. Drove home and turned the A/C on to air the unit out. It stopped working after 30 seconds. It will not work again. When I cycle modes on the control panel, I can hear a faint click inside the A/C unit, but that is all.

The A/C and fan are both on the same 20A circuit, that was easy to prove by removing that 20A fuse labeled "AC" and noting that both the A/C control panel and the main fan stopped working. I can also tell that when they were working on the main fan, they also at least touched the A/C unit area, since they left dirty handprints everywhere they worked. So, presumably this is the fault of something they did.

We are leaving for a trip in 48 hours where we would love to use the A/C. Obviously after everything else we've been through with this place, we have no reason to believe there's any way they'll get the work done on a Saturday in one day, though I will for sure be calling them first thing in the morning to find out. My only realistic hope though is fixing this myself. I'm generally handy and have done a lot of electrical work in my house, but this arena is very new to me. Any advice is very very very much appreciated. One working theory I have is that the 20A fuse is underprovisioned, and whatever caused the main fan to break when the unit was brand new is now causing the A/C to blow a capacitor or something. So my fear is that even if I identify that capacitor and replace it, however they have this thing wired now will just cause it to blow immediately again. Thanks in advance for any help!
 
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Besides the fuse...

Long story short, we picked up a brand new 2350LE Sunseeker 10 months ago. We had 5 PDI issues... 4 of those were cosmetic, 1 was functional: the main fan did not work. It wasn't a huge deal since the A/C did work. We spent MONTHS and HOURS on the phone getting to the point where the dealer finally had all the parts in hand and was ready to fix our unit. The fix was supposed to be done in 1 day. It is 5 weeks after that day today (fun), and we just got the RV back (after dozens of hours on the phone weekly over the past 5 weeks).

I tested the new main fan out in the parking lot. It worked fine. Drove home and turned the A/C on to air the unit out. It stopped working after 30 seconds. It will not work again. When I cycle modes on the control panel, I can hear a faint click inside the A/C unit, but that is all.

The A/C and fan are both on the same 20A circuit, that was easy to prove by removing that 20A fuse labeled "AC" and noting that both the A/C control panel and the main fan stopped working. I can also tell that when they were working on the main fan, they also at least touched the A/C unit area, since they left dirty handprints everywhere they worked. So, presumably this is the fault of something they did.

We are leaving for a trip in 48 hours where we would love to use the A/C. Obviously after everything else we've been through with this place, we have no reason to believe there's any way they'll get the work done on a Saturday in one day, though I will for sure be calling them first thing in the morning to find out. My only realistic hope though is fixing this myself. I'm generally handy and have done a lot of electrical work in my house, but this arena is very new to me. Any advice is very very very much appreciated. One working theory I have is that the 20A fuse is underprovisioned, and whatever caused the main fan to break when the unit was brand new is now causing the A/C to blow a capacitor or something. So my fear is that even if I identify that capacitor and replace it, however they have this thing wired now will just cause it to blow immediately again. Thanks in advance for any help!
Besides the fuse, the air conditioner should have a 20 amp circuit breaker. Have you turned it all the way off, then all the way on?
 
Besides the fuse, the air conditioner should have a 20 amp circuit breaker. Have you turned it all the way off, then all the way on?

Thank you so much for the response. I just tried that, no luck. Then I tried flipping every single breaker off... still no luck after that. Same behavior, clicking when I change modes. Interestingly enough, I did note that the control panel and main fan both worked fine with every breaker off... presumably they're both on a 12V circuit or something.
 
Update: I'm an idiot. The 15A breaker in my house that I was plugged into was flipped. I could have sworn I verified last year that this outlet was on a 20A circuit. This never happened before in the many times I ran this A/C on this house circuit. Bad timing that it happens the moment I get it back from the dealer. I found an available 20A circuit in my house to use and confirmed everything is ok.

Apologies for the noise, I'll delete this post or update the OP if delete not possible.
 
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Update: I'm an idiot. The 15A breaker in my house that I was plugged into was flipped….

…Apologies for the noise, I'll delete this post or update the OP if delete not possible.

I say, leave it be, chances are someone will be searching for the same problem someday with some of the keywords in your post. You might just save somebody else from going through the trouble. Congratulations on getting it resolved, and happy camping!
 
I say, leave it be, chances are someone will be searching for the same problem someday with some of the keywords in your post. You might just save somebody else from going through the trouble. Congratulations on getting it resolved, and happy camping!

Good point, thanks. I edited the post title to be more helpful along those lines.
 
Well, you're the second member to have had the same problem and solution today:
https://www.forestriverforums.com/forums/showthread.php?p=2853117

Ha! Only the A/C and the microwave in my unit are on 120V. It was actually a glance down at the microwave that finally clued me in. It's especially tricksy that the A/C control panel is on 12V, which I did know, but somehow still managed to contribute to my confusion today. Especially since I heard the clicks inside the unit itself, which I now realize just means the control board in the unit is also on 12V.
 
And for that reason along with others, I installed a proper RV 30 amp circuit on a dedicated 30 amp breaker. Doing all the work myself, took a couple of hours and about $50 in materials and parts.

Bob
 

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