Air Conditioner Issue

[merpmerp]

Hello,
I have a 2019 Reflection 303RlS that I haven't had a chance to use that much so far but will be using this weekend.

I've used the air conditioner twice. The first time it worked fine.

The second time was Memorial Day weekend. If I used it on high or automatic, it shut off almost immediately. If I kept it on low continuously it stayed on.

I went on the roof to see if there was any type of blockage that might be causing it to heat up and shut down but it was clear.

Do you know why this might be happening?

Thank you for any help.

[WhittleBurner]

Hello,
I have a 2019 Reflection 303RlS that I haven't had a chance to use that much so far but will be using this weekend.

I've used the air conditioner twice. The first time it worked fine.

The second time was Memorial Day weekend. If I used it on high or automatic, it shut off almost immediately. If I kept it on low continuously it stayed on.

I went on the roof to see if there was any type of blockage that might be causing it to heat up and shut down but it was clear.

Do you know why this might be happening?

Thank you for any help.

Sounds like it could be a thermostat problem. Go to the search icon at the top right of the screen and type in thermostat and you should come up with some discussions from other people that have had the same problem and what to do to take care of it.

[Second Chance]

Pull the filter grill inside and check the baffle plate that separates the warm air return for the cold air output. There has been a history of these metal dividers being sloppily positioned and taped and/or falling down against the plastic interior trim. When this happens, air is shunted directly from the cold air output to the warm air intake of the AC unit causing it to incorrectly sense what's going on and short-cycling or not staying on. I replaced a thermostat to no avail before figuring out what the real issue was.

Rob

[merpmerp]

Pull the filter grill inside and check the baffle plate that separates the warm air return for the cold air output. There has been a history of these metal dividers being sloppily positioned and taped and/or falling down against the plastic interior trim. When this happens, air is shunted directly from the cold air output to the warm air intake of the AC unit causing it to incorrectly sense what's going on and short-cycling or not staying on. I replaced a thermostat to no avail before figuring out what the real issue was.

Rob

Thanks for the replies. First off, regarding the thermostat, I called Grand Design and was on hold for 20 minutes before I hit one to get a call back. It's been at least an hour and still no call back.

Regarding the baffle plate, yes, I had read about this issue before purchasing the unit. I asked the sales guy, plus the maintenance guy to check on it and they both said "yes we check any recalled items". I told them I don't think it had to do with a recalled item and asked them to check anyway.

They said they would, but the way they disappeared on me as soon as we made the purchase, I doubt they did. My wife worked in HVAC for many years and said it sounds like it could be a filter issue so I'll definitely take a look as soon as I get up there.

Thank you

[TheLexx]

You didn’t specify under what conditions the ac was used. We’re you at a park with 30 or 50 amps. Was there an under voltage situation? I had this happen at a RV park where the line voltage was dropping too low and my EMS was tripping to protect the electronics.

For the ac divider issue, do a search for my post about the ac. I have detailed pics on the divider and other issues you can fix yourself easily.

[Aridon]

If the baffle is fine and you're getting cold air on low or some other setting then I'd swap the thermostat.

[merpmerp]

You didn’t specify under what conditions the ac was used. We’re you at a park with 30 or 50 amps. Was there an under voltage situation? I had this happen at a RV park where the line voltage was dropping too low and my EMS was tripping to protect the electronics.

For the ac divider issue, do a search for my post about the ac. I have detailed pics on the divider and other issues you can fix yourself easily.

Oh, I should have mentioned that. We're on a permanent site that is 30 AMP. It's the same site we had our Class C on for years with no issues. I don't know if this has anything to do with it, but it was Memorial Day weekend and the campground was packed.

[merpmerp]

If the baffle is fine and you're getting cold air on low or some other setting then I'd swap the thermostat.

Thanks, I'll find out soon enough. I guess if I need a new thermostat I'll call Grand Design first thing in the morning during the week so I get someone. They never called back after pressing 1 for a call back.

[Country Campers]

In the high humidity conditions it is better to run the a/c on low fan instead of auto. These a/c's can not keep up with the high heat and humidity on the auto setting. Try just high fan to get cooled down and then turn to low fan and let it run the whole time.

Brian

[TheLexx]

Oh, I should have mentioned that. We're on a permanent site that is 30 AMP. It's the same site we had our Class C on for years with no issues. I don't know if this has anything to do with it, but it was Memorial Day weekend and the campground was packed.

The packed campground is the likely culprit. The same thing happened to us in Revelstoke, B.C. last summer. 30 amp campground and when it got packed, our line voltage dropped to 108. At that point the EMS shut down to protect the electronics.

With some of the older campgrounds and with 30 amp lines, if you're at the "end of the line" and there are a lot of other users on, your voltage may be too low. EMS shuts down the unit so you don't draw too many amps as the volts go down.