Is A/C on GFCI circuit

[TexasUltra]

I was running on my generator when I tried to plug a small air compressor into the outlet in my exterior storage bay. When I did, the compressor started for a milli-second and didn't run any more. All the breakers appeared to be OK, but I re-set them any way. When I went inside I noticed the A/C was off. It had been on and running fine a few minutes earlier. I checked the GFCI plug by the sink and it would not trip or re-set. I'll change the GFCI plug tomorrow but my question is...would the A/C be on the GFCI circuit?

[dougrainer]

red31 wrote:
so the model B59530 doesn't Runs on a 15 amp HCAR circuit breaker as advertised and stated in the install manual?

Yes, there are just 2 models of a Dometic (459530/B59530) out of over 60 models that can be run on a 15 amp breaker. BOTH do not list BTU size. They run on 11.1 amps (Hi /Cool). BUT, they also state a minimum of 12 gauge wiring. This is a special built for low power requirements. I have never seen one in operation. Usually they would be installed in RV's that are very small(30 amp only) and utilize a small(2.5k) genset. You can always find an exception, but the RULE is 20 amp breaker minimum. Doug

[red31]

so the model B59530 doesn't Runs on a 15 amp HCAR circuit breaker as advertised and stated in the install manual?

[SoundGuy]

Dusty R wrote:
If a roof AC unite is wired with #14ga. wire do NOT move that wire to a 20 amp breaker.

Any A/C wired with 14 gauge would not be to code, it must be 12 gauge and that 12 gauge circuit must be protected with a 20 amp breaker.

[Dusty_R]

If a roof AC unite is wired with #14ga. wire do NOT move that wire to a 20 amp breaker.

Dusty

[dougrainer]

ALL RV roof AC units should be on a 20 amp breaker. If on a 15 amp, it is not correct and should be changed to a 20 amp. NEVER have a AC on a GFCI breaker. Not needed. Doug

[wa8yxm]

A/C is not on GFCI. Generator has a couple of circuit breakers one of which may have tripped. Also if you have an inverter it will have breakers, either on the inverter itself or on a 2nd breaker panel hidden somewhere.

THe GFCI is showing no power to the input terminals.

ALso I've had connection fail.

[SoundGuy]

pianotuna wrote:
My 13500 Dometic is on a 15 amp breaker.

You haven't specified just which Dometic A/C model you have but here's a typical Dometic A/C Installation Manual and you'll note that 20 amp "circuit protection" (Page 3) is required. I'll repeat - any (properly installed) A/C I've seen has been wired with a 20 amp circuit protected by a 20 amp breaker - 15 amp is insufficient.

[pianotuna]

.

[Bill_Satellite]

TexasUltra wrote:
I was running on my generator when I tried to plug a small air compressor into the outlet in my exterior storage bay. When I did, the compressor started for a milli-second and didn't run any more. All the breakers appeared to be OK, but I re-set them any way. When I went inside I noticed the A/C was off. It had been on and running fine a few minutes earlier. I checked the GFCI plug by the sink and it would not trip or re-set. I'll change the GFCI plug tomorrow but my question is...would the A/C be on the GFCI circuit?

No.

[SoundGuy]

Old-Biscuit wrote:
That outside outlet is.......the A/C should be on it's own 15A CB

Never seen A/C on a 15 amp breaker, always 20 amp.

[TexasUltra]

George3037 wrote:
Are you sure you didn't trip the breaker on the generator? If you have no power to the GFI the test and reset buttons may not work without power.

My A/C is on a 20A breaker but on a small generator (say a 2200W gen) its the only thing I can run. If I add more load like a compressor, microwave, large fan etc. it will trip the genny breaker.

I recently sold my small genny and now have a 3500W Predator or a 4750W Champion that will run everything.

I thought about this possibility after I parked it back in storage and came home. I'll pull it out tomorrow and check this.
Thanks

[BFL13]

A Honda gen will keep running even after its circuit breaker is popped. You reset the CB by stopping the engine and starting over ( with the load unplugged), then plug back in with less load. If big load, start gen engine with eco off then wait till all running then turn eco on or the engine might conk out at first.

A GFCI will not reset unless it has power. Yours acts like no power, so concur with previous idea, that the gen power CB has popped.

The A/C should be on its own circuit as stated above, but anything is possible in an RV! 😞

[George3037]

Are you sure you didn't trip the breaker on the generator? If you have no power to the GFI the test and reset buttons may not work without power.

My A/C is on a 20A breaker but on a small generator (say a 2200W gen) its the only thing I can run. If I add more load like a compressor, microwave, large fan etc. it will trip the genny breaker.

I recently sold my small genny and now have a 3500W Predator or a 4750W Champion that will run everything.

[Old-Biscuit]

That outside outlet is.......the A/C should be on it's own 15A CB

[Mandalay_Parr]

No.