Question about Whirlpool Heating & Cooling

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I have a window air conditioner. When it runs for several hours it will trip the breaker. I have had the unit for 5 years. I bought it used and even though it has always shaken when the air compressor comes on it has cooled fine. Recently, however, my landlord changed the circuit breaker (had an electrician come out to do this and supposedly everything is working find). However when I pluuged the unit back into the plug for this circuit, the unit would not even operate for 10 mintues without truipping the breaker. Now the unit is plugged into a different outlet on a different circuit breaker. It has not tripped this breaker for 4-5 hours. However, the whole unit will shake and make noises while it is running. It does still cool. I have not done routine maintaince to clean it except for cleaning the filter. What might be the problem and can it be repaired?

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  • nancy_wittum Jul 08, 2010

    I do not know what is causing the problem. My airconditioner (a window unit) makes noise when it cycles and it shakes. It has tripped the breaker occasionally. My landlord installed a new breaker (however, I have reason to believe that he put in a breaker that is not the right amperage for the unit). The unit has been plugged into another outlet on a different circuit and has not tripped the breaker. It is however still making noise and shuddering as it cycles. The only thing I have cleaned on it is the air filter in 5 units. I have heard dirty air conditioners can have problems. What do you think is causing the problem?

  • nancy_wittum Jul 08, 2010

    My air conditioner is a window unit. It shakes and makes loud noises when it cycles. I bought it used and I have had it for 5 years. It still cools. My landlord is worried that this is running unsafely. I got two different answers on what could be wrong and need a tie breaker so to speak. Please help ASAP as I have already had a less than civil conversation with my landlord about this.

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  • Master
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It's probably fine even though it jiggles and makes noise. I would ask the landlord to change the circuit breaker again and ask the electrician what the amps were for the breaker he took out and the one he put in.

Hopefully he did not put a breaker in that was less than the one he took out, but anything is possible.

If the air conditioner works fine on another outlet with a different breaker and hasn't tripped that breaker for a long time, like the 4 to 5 hours that you say, then I would keep operating it on that breaker.

Also, note, that using an extension is not recommended unless it is a very heavy gauge and is rated as an appliance 15A or 20A cord.

The compressor kicking on and off is what is tripping the breaker, as this takes the most amount of current to start (not the fan).

A new air conditioner may not trip your breaker, but the new 5,000 btu air conditioners can cost about $100 or so.

Note: some breaker brands and models are more prone to tripping, so another breaker of even the same Amp rating may still trip with your 5 year old used air conditioner.

Hope this helps! Good luck to you.

Posted on Jul 08, 2010

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  • Master
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Hi, The unit rattles loudly when it turns off The compressor in all window air conditioners is a powerful motor. When it starts up - and especially when it shuts off - the whole air conditioner can shake, sometimes loudly. Usually there is nothing that can be done to correct this problem. However, it is possible that the compressor mounting pads and brackets are worn out or missing. If that is the case the pads and brackets can sometimes be ordered and replaced. Be sure that the air conditioner is securely mounted in the window frame if the unit shakes at all. It is possible for the unit to shake free of the frame if not installed properly.

On a second thought you still need to do routine maintenance to clean up AC,for better performance.

Take care.

Posted on Jul 08, 2010

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  • Whirlpool Master
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The problem seems to be the compressor motor. The compresor of the Ac is actualy an electric motor which is moving the piston. The motor every time is start the starting current is about fives times hiher than the running which is the one after some seconds it have started.
So now the motor which is of some years of working some mechanical moving parts insight have waring out like the ball bearings and the motor need more power in order to rotate therefore more Ampers. The electrical breaker is doing this jop controling how many amper to leave pass throught it like. Now the new breaker is more sensitive or smaller in Amper capacity so it detect the change in ampers and tricker off and this is for your protection, ither the motor will overheat and burn out. The different circuit breaker is ither not so sensitive or on higher ampers that is why it can leave the motor to work for more time until it detect a hevier load on motor which not so frequent.
Now I sugest first to clean the unit from any dust the condesnser and everything this will reuce a litle the power needed.
However if the noice is very loud then I sugest to ask for an estimate for replacing the compressor to solve the problem permanetly. However thisis the most expesive part in the unit and also the replacing of the compressor needs also freon recovery, freon filter and labour and maybe some electrical parts which can rise the cost very high and would be more eficcient to buy a new one insted of repair the old one.
Please bair in mind that old technology AC are cosuming up to five times more electricity that the new technology one so this is one more reason to consider.

Posted on Jul 08, 2010

  • espressonist
    espressonist Jul 08, 2010

    You have a faulty start capacitor. The capicitor helps start the motor ... since it is not doing its job, the motor draws LOTS more power from the line popping the breaker. Have your professional RV service center service your AC

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