AC Help Needed!

[John_I_Haggerty]

I'm having an AC problem and need help. I have a 30amp system with 13,500 BTU Dometic AC.

-It can run fine for awhile then kick the breaker. Sometimes a couple of days before becoming troublesome.
-Before it kicks the breaker, I hear a noise inside that I think is coming from a circuit board. What is that board and is is a serviceable part?
-Doesn't matter what campground, so I say it's not available power.
-I've changed starting capacitor, no difference.

Any ideas?

Thanks

[Dave_H_M]

:h I don't have a drop of French blood in me. But I thought I did give a good description of where my circuit board was on the AC.

It was walla and always will be walla where I grew up in the US of A.

I thought viola was some sort of sweet onion that was grown predominantly in Ja Ja. :W

[dougrainer]

Bill.Satellite wrote:

NinerBikes wrote:

Dave H M wrote:
:S What about the actual question the OP asked?

Here is where my circuit board is. Inside the camper, I removed the cover from the AC on the ceiling. Then look inside up there. My circuit board was in plain view and easy to change. I got one from PPL, stuck it in and walla, it fixed my prob. However i do not know about yours. As i foggily recall, the number for the board was printed on the board.

It's voila, not walla, FYI.

voila

Seriously? Talk about a head banger! Oh, class! A new teacher has arrived and you must all pay attention.

Lets go with "eureka":W Doug

[Bill_Satellite]

NinerBikes wrote:

Dave H M wrote:
:S What about the actual question the OP asked?

Here is where my circuit board is. Inside the camper, I removed the cover from the AC on the ceiling. Then look inside up there. My circuit board was in plain view and easy to change. I got one from PPL, stuck it in and walla, it fixed my prob. However i do not know about yours. As i foggily recall, the number for the board was printed on the board.

It's voila, not walla, FYI.

voila

Seriously? Talk about a head banger! Oh, class! A new teacher has arrived and you must all pay attention.

[beemerphile1]

Guesses, guesses, and more guesses.

John I Haggerty, you need to specify which breaker is tripping. Is it the 30a pedestal breaker? Is it the 30a breaker in your panel? Is it a 20a breaker that is specific to the A/C unit?

No matter which breaker is tripping, look at other loads on that same breaker.

[NinerBikes]

Dave H M wrote:
:S What about the actual question the OP asked?

Here is where my circuit board is. Inside the camper, I removed the cover from the AC on the ceiling. Then look inside up there. My circuit board was in plain view and easy to change. I got one from PPL, stuck it in and walla, it fixed my prob. However i do not know about yours. As i foggily recall, the number for the board was printed on the board.

It's voila, not walla, FYI.

voila

[Dave_H_M]

:S What about the actual question the OP asked?

Here is where my circuit board is. Inside the camper, I removed the cover from the AC on the ceiling. Then look inside up there. My circuit board was in plain view and easy to change. I got one from PPL, stuck it in and walla, it fixed my prob. However i do not know about yours. As i foggily recall, the number for the board was printed on the board.

[dougrainer]

1. IF he is kicking the 20 amp AC breaker, then regardless of the Microwave/wh on will NOT kick the 20 amp AC breaker, the MAIN breaker will kick
2. His description,(if the coils are clean) shows a defective compressor. OR the 3 wire terminals on the compressor are burnt and need replaced. OR,(the noise he hears at trip) is a loose 120 wire nut connection at the power source hook up at the main control. It is arcing and shorting out.
3. How old is the unit?
4. The board is a serviceable part but I doubt your board is defective. Doug

[mobilefleet]

what donn said. plus be advised you cannot run the microwave or a hair dryer/coffe maker/any other large wattage draw device at the same time the a/c is running because the amp draw will exceed 30 amps and trip the breaker

[AllegroD]

Clean the AC first. Makes it more efficient.

[past-MIdirector]

What is the voltage at the park outlet, in the rig before you turn on the A/C? How low is the voltage going down when the A/C first starts and does it drop down more as the A/C runs during the day? What breaker is tripping 20 AMP A/C or 30 AMP house? Is the breaker hot to touch?

[wa8yxm]

That noise could be a relay failing. IF so it can cause the motor to suck way more current than it should thus tripping the breaker.....

Problem is you failed to include an MP3 of the noise.

A new circuit board may be on the drawing board.

[donn0128]

Make sure the refer is on gas. Same with the water heater. Then you should be fine.

[pugslyyy]

The first things I would check are
1 - Is it the circuit breaker going bad?
2 - If not, the motor is likely heating up and drawing too much current. Either everything is clogged and dirty causing it to work too hard, or the bearings are going.

What does the noise sound like? Rumbling? Squeaking? Chattering? Ticking?