AC shuts off when on generator

TheLarks · 07-17-2016, 02:22 PM

New owners here. GTXL352. AC starts up on generator then shuts off. Help. Deb

wrapperman · 07-17-2016, 03:43 PM

I don't know if I can help but more info is needed, like:
Has the generator been running for a few minutes?
Does the generator stay running?
Does the transfer switch disconnect?
After you turn on the AC is it the compressor not staying on or the fan or both?
Does the AC try to restart after a few minutes?
As mush info as you can will help others help you, with the same problem.

TheLarks · 07-17-2016, 04:02 PM

Quote:

Originally Posted by wrapperman

I don't know if I can help but more info is needed, like:
Has the generator been running for a few minutes? YES
Does the generator stay running? YES
Does the transfer switch disconnect? NOT SURE WHAT THIS IS
After you turn on the AC is it the compressor not staying on or the fan or both? BOTH
Does the AC try to restart after a few minutes? NO
As mush info as you can will help others help you, with the same problem.

Additional info: during the time the AC is running there is a thumping noise somewhere in the back of the coach. Thank you. Deb

wrapperman · 07-17-2016, 04:30 PM

Another question:
Do you still have 110 power?
Like does the microwave work after the AC goes off?
Are you getting 110 volts at your receptacles?
If you loose 110 power then the thumping you are hearing could be the "transfer switch" trying to re-engage.
Let me know and I will give you somethings that might be the issue.
More questions:
What year is your coach?
What size coach do you have?
How many AC's do you have?
What size generator do you have?
Do you just turn on the generator and after about 30 seconds you get power? (This will tell me if you have an automatic "transfer switch")

Bayouownbeer · 07-17-2016, 05:25 PM

The thumping noise is definitely the transfer switch. Mine has done this as well more than once. Turn the AC off turn generator breaker off and turn breaker back on then try AC again. This has worked for me. I bet you have progressive dynamics transfer switch I have read a lot of pep have had this same problem. I will be contacting progressive about my issues. Btw my switch is located in the back bin where the power cord is located

TheLarks · 07-17-2016, 05:33 PM

Quote:

Originally Posted by wrapperman

Another question:
Do you still have 110 power?
Like does the microwave work after the AC goes off?
Are you getting 110 volts at your receptacles?
If you loose 110 power then the thumping you are hearing could be the "transfer switch" trying to re-engage.
Let me know and I will give you somethings that might be the issue.
More questions:
What year is your coach?
What size coach do you have?
How many AC's do you have?
What size generator do you have?
Do you just turn on the generator and after about 30 seconds you get power? (This will tell me if you have an automatic "transfer switch")

2015 GeorgetownXL 352. Gas. 36''8". 2 AC units
5500 gen
We turn gen on via the gen set button, gen comes right on , ,then turn on AC, one at time,, AC runs and then cuts off. Also when I then turn AC off it comes back on by itself for a few seconds. We have verified the thumping is the transfer switch and it only thumps when the AC is running. Will have to verify about the 110 in a little bit - out of pocket for about an hour. Thanks. Deb

TheLarks · 07-17-2016, 05:38 PM

Quote:

Originally Posted by Bayouownbeer

The thumping noise is definitely the transfer switch. Mine has done this as well more than once. Turn the AC off turn generator breaker off and turn breaker back on then try AC again. This has worked for me. I bet you have progressive dynamics transfer switch I have read a lot of pep have had this same problem. I will be contacting progressive about my issues. Btw my switch is located in the back bin where the power cord is located

Thanks for the additional info. We will try shortly. Btw we verified our switch is in the same place you described back bin.

Bayouownbeer · 07-17-2016, 05:43 PM

Automatic Transfer Switches and other RV Products from Progressive Dynamics

I have the PD52 and not happy with it at all. I plan to call them and see what they are willing to do about it. Is like to upgrade to the PD52dcs it suppose to be a noise free switch and has Built in surge protector

Bayouownbeer · 07-17-2016, 05:55 PM

My coach has two water heaters I turn the breaker off to those while I'm on generator which helps as well. I believe that the switch chatters when there is too much electrical load on it. Really sucks.

TheLarks · 07-17-2016, 08:27 PM

We just tried again. Same results. AC starts thumping starts then AC cuts off. Microwave (clock) goes off when the Ac goes off. Microwave (clock) comes back on when I turn the AC switch off. Btw we have a domestic AC/furnace thermostat

Bayouownbeer · 07-17-2016, 08:46 PM

Sounds like transfer switch is shot. I find mine getting worse with every use. I will be calling them.

wrapperman · 07-17-2016, 08:51 PM

What you are describing is the transfer switch trying to reengage (A thumping sound). Others on this forum are starting to post they are having the same issue. It seems to be pointing to the transfer switch "dropping out". Of course it will not re-engage until the AC's are turned off.
The reason the switch is cutting out is because of the heavy power draw from one of the AC's, though it should not cut out.
My first guess would be the transfer switch, after that the generator. In rare cases it could be the AC units compressor being bad.
It should still be under warranty so unfortunately I would insist on them fixing it.
By the way, you won't need to check to see if you are getting 110 volt because you will not have 110 volt since the switch is what sends powers those items.
The transfer switch is the device that "switches power" from the shore power cord or the generator to the coach.
Keep us posted when you get it fixed.

TheLarks · 07-17-2016, 10:31 PM

Thanks for all the info. Calling about warranty work tomorrow. Will post any updates

Stymie71 · 07-18-2016, 08:14 AM

Read this post:

http://www.forestriverforums.com/for...ue-112106.html

Exact issue both of you are having. So far, FR has punted on the issue. Bayouownbeer, I'd be interested in hearing the response from Progressive.

Bayouownbeer · 07-18-2016, 11:22 AM

Just got off the phone with progressive. They have a updated board that plugs into the generator contact that is suppose solve the issue. They ship them out for free. I left the service guy a message I believe his name is Dennis and he called me back within the hour. This is there number 269.781.4241

Stymie71 · 07-18-2016, 11:58 AM

Wow! So, they have a known issue? I'll get my warranty info. together and give them a call then.

Thanks for the follow-up Bayouownbeer.

Bayouownbeer · 07-18-2016, 12:03 PM

I didn't need any info I just told hem I had brand new coach and what it was doing. He had I bunch of reason of why it could be doing that. Which I already knew but siad he has had good feedback on when this board was replaced it solved the issue.

TheLarks · 07-18-2016, 12:41 PM

Thanks for the info!!

Kevin M. · 07-18-2016, 05:41 PM

I replaced my transfer switch with a Go Power TS50 and it did the same thing, I'm willing to try their update, but not hopeful it solves it.

Bayouownbeer · 07-18-2016, 05:44 PM

I have it coming so we shall see. I seen few guys replace there's with one that doesn't have contacts. Different type on this forum and have no further issues.

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