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Re: AC breaker trips after 10 minutes
Whats the amp breaker? Is this for the inside unit or the outside condenser? If the inside and gas heat you have a bad fan motor, If its an electric furnace , the same, but if its the outside unit, the fan could be going bad, locking up and the compressor still runs and pulls high ampsand tripps breaker or the compressor is just pulling too many amps due to plugged coils with dirt , grass or weeds blocking airflow.(email@example.com)
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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.
Good Morning David - Here are
some simple troubleshooting tips to help resolve this issue:
If the outside temperature or inside temperature is below 60
degrees, the unit may not run.
Confirm that the unit has power to it.
Check the power cord connection to the wall outlet is secure.
Make sure that the house circuit breaker has not tripped.
Make sure the unit is turned off, Press the TEST button, you will notice a
click as the BUTTON pops out. Then press the RESET button. Again, you will
notice a click as the button engages, now turn unit on. If the LCDI plug does not
reset the cord may be damaged.
The "Cool" circuit has an automatic 3-minute compressor time delayed start if
the unit is turned off and on quickly. This prevents overheating of the
compressor and possible circuit breaker tripping and the fan will continue to
run during this time.
If the unit has been turned off and on rapidly or if the thermostat was changed
to a lower number and then immediately turned back to a higher number the
compressor may not start. You must turn the unit off and wait a minimum of 3
minutes for the unit to equalize before restarting.
I would recommend reaching
out to an experienced appliance tech just to ensure no troubleshooting step has
been missed. Parts are often costly and if the problem is precisely diagnosed,
it can save you a lot of time and funds. I hope these troubleshooting tips help
you in some small way.
What else do you have running on hydro while AC is running? Such as coffee maker, microwave, water heater, fridge. That 30 amp breaker is your main breaker I assume, or breaker on pole your plugged in to. Keep in mind your AC will normally draw approx. 15-17+ amps momentarily when compressor kicks in to cool, then drop back to 12-15 amps when running normal. If your AC is drawing too much current, then you would only normally trip 20 amp breaker for AC in your panel. Try switching other appliances to gas operation while running AC, such as water heater, and fridge. Make sure incoming voltage is up to specs as well . (115-120 volts) If water heater takes 5-8 amps, and fridge takes same when they are calling for power, you'll be close or over the 20amp mark when you consider your on board converter etc. as well. That only leaves approx 10 amps for AC that requires approx 15 amps to run, and up to 20amps when compressor kicks in. If you switch all those other items over to propane, and it still happens, then a current draw test should be done on AC unit to see if perhaps a capacitor is faulty, or possible compressor faulty.
I'm leaning toward sticky relay as well, but if you want to confirm it's not thermostat, remove thermostat from wall, and temporarily disconnect the yellow wire from thermostat (compressor) when/if, it happens again. If compressor stays running, I'd say relay for sure. Just for future reference , Gray wire from thermostat is low fan, green wire is high fan, yellow is compressor, blue is ground. ( For cooling side) The red is 12 v + to furnace and white is negative to furnace.(heat side)
It may be low on refrigerant. On hotter days, the compressor has to run longer to reach the temperature you have on your thermostat. Have it checked for the proper refrigerant charge and have them test how many amps that the compressor is pulluig as well. With the proper breaker installed, the unit should not be tripping out. Make sure that the breaker that is in there now is actually the proper one for your unit.
Best regrds, --W/D--
Sounds like you have a problem with your compressor. If the beaker trips the second the compressor tries to come on hen it is shorted. If it takes a couple of seconds, then your compressor is locked up. seth
eventually,cycling process is doing done if the thermostat sense the configure temperayure set up it will trigger to stop your compressor motor as well as the blower fan,blower fan independenly to you compressor.if your thingking that your compressor is tripping off,check your operating current on one line using clamp ammeter and compare to the rated current that tag on
motor compressor body,if the current flow is higher than the rated current specified on compressor motor,well problem occured it will trip your compressor,because overload protector is becoming your thermostat.but if you got same current result it was cycling process.If tripping off maybe air is present in your system call qualified ac tech, to purge out air in system.
Is your condensing unit located in a well ventilated area and have an ample space, atleast a foot, from the rooftop flooring? Just make a check that free flowing outside air properly ventilates the condensing unit specially on high ambient temperatures. Hope this would solve your problem