Question about Quasar HQ2101SH Air Conditioner

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Quasar unit trips circuit breaker, still cools when it stays running

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This is not very much information to go on, but I will say that it sounds like one of 2 basic problems.

1) The compressor is pulling high amps and should be replaced
2) It may be a weak breaker that trips before the proper amp load is reached.

Posted on Jun 16, 2008

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My duo therm 13.5 btu rv air conditioner started making a popping sound and dimming the lights like it's trying to cycle to shut off. Well then it started triping the circuit breaker so I changed out the 2...


The best guess is that you have a bad thermostat. When the compressor shuts off it has to stay off for a long enough period of time for the low pressure high pressure to equalize. If it turns the compressor off and back on immediately it can't start against the heavy load created by these unequal pressures. If it will start every time after sitting for 10 minutes the thermostat is making it short cycle.

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I have a Quick Cool (59516.501) which just started tripping the 20 A circuit breaker. I replaced the circuit breaker. Unit still trips the circuit breaker.


you will need to access the unit and look for burnt/shorted wires on/at compressor. if not then the compressor is locked down/shorted and will need replaced Tim

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1 Answer

The circuit breaker is tripped after the ac is turned on.


Either the circuit beaker is overloaded (check to make sure no other electrical appliances are on that same circuit) or the unit draws more amperage than the what the circuit breaker can handle,. Or the there is an electrical short in the AC unit. Also, check the receptacle that the unit's cord is plugged into for damage, loose wire or broken or cracked socket.

Those are the things you start troubleshooting first.

Hope this helped you. Please let me know. Thanks.

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Is the red reset button on a garbage disposal supposed to stay 'pushed' after pressing it?


Yes. It's a circuit breaker that only pops out when it has tripped. If it won't stay in, then the problem that made it pop out is still present. This could be due to overheating (in which case it won't stay in until it cools down) or a short circuit (in which case it won't stay in until the short circuit has been removed). Wait 30 minutes (to give it plenty of time to cool down) and try again. If it still won't stay in, you have problem. By the way, if the unit is jammed, the breaker pops out because the unit quickly overheats. Good luck, Al K

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Unit comes on and runs for 5 minutes, the circuit trips off


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seems that if it runs for 5 minutes there shouldnt be any shorted wires I would say your breaker needs replaced

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You need to verify if the problem is the unit or the breaker.  To do this, you will need to measure the current it is pulling from the power source.
If the unit is pulling too much current, then the unit is the problem.  If the unit is pulling as much or less than its rated current draw, then the circuit breaker is worn out.
The units WILL pull more power when hot outside.  It should not trip a breaker unless something is wrong with either the unit or the breaker.
A current draw test will tell you for sure.
If it's not the breaker, then it's probably low refigerant causing the issue.

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1 Answer

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start components are likely bad causing comp to pull high amps tripping breaker careful resetting the breaker they can explode stand off to the side
you need service all so have preventive maintenance done on the unit

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