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Unit will trip breaker after running 10-15 minutes, it cools well, controls seem to work, cord will get warm. it is on a brand new 20 amp circuit breaker.

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With what you described, this usually happens when your breaker is too small. If possible, read the information plate on the unit, it should say the fuse amp size there. Sometimes when the compressor is going out it will also do this because it is having to work so hard. I'm not sure what unit you have or if it's a window unit or a central air unit, but I hope this helps!

Posted on Aug 05, 2010

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4 Answers

HELP???


What was the voltage that you measured? Are the units 220 volt or 120 volt. Units that size are usually fed by 220 volts. What is the current rateing of the circuit breakers? Are they a double breaker with a handeling capacity of 20 amps or are they 15 amps.

You didn't mention if they ever worked? Are you feeding 120 volts or 220 volts to the two units?

Good luck,

Marty

May 11, 2014 | Dometic Rooftop RV Air Conditioner

1 Answer

Dryer blows circuit breaker after running 10-20 minutes.


indicates problem motor , overheating in the wiring or excessive loads in the drier

Jun 07, 2017 | Kenmore Dryers

1 Answer

Oscillating drum sander runs a few minutes and stops


This usually occurs if the motor is overheating and the internal circuit breaker is tripping. After it cools down, it self resets. This can be caused by bad bearings or parts dragging the motor down, making it work hard enough to over heat and trip the breaker. If you are running it on an extension cord or circuit that isn't able to provide it with the amps it needs the motor will overheat and trip the breaker also.

Dec 02, 2012 | Delta 17-960 Oscillating Spindle Sander...

1 Answer

Tripping circuit breaker


That unit shows that it takes 15 or 20 AMPS to run. What is the breaker amperage on the circuit where it is plugged in? Is the breaker a GFCI? You can tell by looking for the two buttons on the circuit breaker or the outlet.

Jul 18, 2017 | KitchenAid KCMS1555RSS Stainless Steel...

1 Answer

We have a 1999 "Thermal


DO NOT install a 20 amp breaker, you can cause a fire. The breaker is rated for the WIRES, and unless you change out the wires, the 15 amp wires will overheat and can cause a fire.
Typically, A/C units need dedicated power, with nothing else on that circuit.
One step that you may try is a new 15 amp breaker. Once a breaker starts tripping, is starts tripping earlier....
You may wind up running a new circuit for the A/C, if you do, size it for the A/C.

Jul 18, 2011 | Heating & Cooling

1 Answer

AC runs for 5 minutes and then circuit breaker


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.

Jul 22, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Central AC unit replaced breaker trips after running 20min


Unit is drawing two may amps for the breaker. Could be compressor sticking.

Jul 22, 2009 | Weather King 10AJA6001AH Air Conditioner

1 Answer

GFI on cord trips out.


Probable cause is a single pole gfi opposed to a double pole gfi.
* Do not use a single pole GFCI ON A MULTI WIRE CIRCUIT, IT WILL NUISANCE TRIP IMMEDIATELY
Use a two pole GFCI circuit breaker on such circuits.

May 20, 2009 | LG LWHD1800R Wall/Window Air Conditioner

1 Answer

Refrigerator cools as normal. Trips 15 AMP circuit breaker.


a full size refrige has to be on a 20 amp circuit, a 15 amp is just not big enough.. you should also know that this circuit has to be on a 12-2 gauge wire.. I also highly recommend installing a 20 amp HD receptacle

Mar 19, 2009 | Refrigerators

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