Ok guys, here's the problem. I have not been able to use 5er much for 3 years since stroke and heart attack. Just a couple of winter runs when a/c was not needed. So I'm checking everything out and my a/c runs and cools fine for about 30 minutes the flips breaker. Seems to be pulling to many amps for some reason. I'm going topside tomorrow and pull cover and clean coils. What else should I look for while the cover is off. Unit starts easy and runs cool until it flips. Car a/c systems I know well but not this thing.Unit is a dometic 13.500

How is the voltage on the supply and what size breaker is tripping?

jkwilson wrote:How is the voltage on the supply and what size breaker is tripping?have not checked voltage on supply yet. Will do that tomorrow. Breaker is a 20 amp.

It would probably be good to know if the breaker is tripping, is it happening when the compressor tries to cycle on? Or is the compressor running and it just trips? If you reset the breaker to you get another 30 minutes of AC before it trips?Check this link for some more tips, especially checking the drain holes while your up there. Link also make sure you at least inspect all the caulking on the roof. You took the time to get up there, you might as well inspect everything.

Bird Freak wrote:jkwilson wrote:How is the voltage on the supply and what size breaker is tripping?have not checked voltage on supply yet. Will do that tomorrow. Breaker is a 20 amp.Any chance your refrigerator, converter or water heater is running as well and causing excess current draw?

opnspaces wrote:It would probably be good to know if the breaker is tripping, is it happening when the compressor tries to cycle on? Or is the compressor running and it just trips? If you reset the breaker to you get another 30 minutes of AC before it trips?Check this link for some more tips, especially checking the drain holes while your up there. Link also make sure you at least inspect all the caulking on the roof. You took the time to get up there, you might as well inspect everything.I think the compressor was running when it tripped and yes after breaker cools I can run about another 30 minutes. I have already done the roof maintenance.

A/C flipping breaker | Good Sam Community

Bird_Freak
Explorer II
Aug 07, 2019
jkwilson wrote:
Bird Freak wrote:
jkwilson wrote:
How is the voltage on the supply and what size breaker is tripping?
have not checked voltage on supply yet. Will do that tomorrow. Breaker is a 20 amp.

Any chance your refrigerator, converter or water heater is running as well and causing excess current draw?
Nope, everything else is off. Converter may have kicked on but not the same breaker.
Bird_Freak
Explorer II
Aug 07, 2019
opnspaces wrote:
It would probably be good to know if the breaker is tripping, is it happening when the compressor tries to cycle on? Or is the compressor running and it just trips? If you reset the breaker to you get another 30 minutes of AC before it trips?

Check this link for some more tips, especially checking the drain holes while your up there. Link

also make sure you at least inspect all the caulking on the roof. You took the time to get up there, you might as well inspect everything.
I think the compressor was running when it tripped and yes after breaker cools I can run about another 30 minutes.
I have already done the roof maintenance.
jkwilson
Explorer III
Aug 06, 2019
Bird Freak wrote:
jkwilson wrote:
How is the voltage on the supply and what size breaker is tripping?
have not checked voltage on supply yet. Will do that tomorrow. Breaker is a 20 amp.

Any chance your refrigerator, converter or water heater is running as well and causing excess current draw?
opnspaces
Navigator II
Aug 06, 2019
It would probably be good to know if the breaker is tripping, is it happening when the compressor tries to cycle on? Or is the compressor running and it just trips? If you reset the breaker to you get another 30 minutes of AC before it trips?

Check this link for some more tips, especially checking the drain holes while your up there. Link

also make sure you at least inspect all the caulking on the roof. You took the time to get up there, you might as well inspect everything.
Bird_Freak
Explorer II
Aug 06, 2019
jkwilson wrote:
How is the voltage on the supply and what size breaker is tripping?
have not checked voltage on supply yet. Will do that tomorrow. Breaker is a 20 amp.
jkwilson
Explorer III
Aug 06, 2019
How is the voltage on the supply and what size breaker is tripping?

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