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Centrex a/c keeps shutting off every 15 minutes ( split system)

I have a centrex split system ( model CTAR65GW) thathas now decided to switch itself off every 15 minutes, despite me doing absolutely nothing.....
it flashes the timer light and turns off,,,,,
im noot sure what else i can do ... especially with the heatwave,,,,,,,,,

please help me

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  • tinabee34 Dec 30, 2012

    I have the same problem, i keep it in good clean condition, but i did the whole clean condencer thing, and still keeps turning off after a 15/20 min run, other then that its working fine, its just very frustrating, to constanly keep turning it back on, u hear that lil beep the timerlight turns on and it shuts down, and have ni why, iv tryed resetting the time on time off buttons no response, turning off at mains power, still nothing, resetting the remote control no help there either, Is it time to ring that technician? money money money


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To start, check your condencer fan and make sure the condenser is clean.After that you will need a technician with instruments. If the switching off is constant, after approx. every 15 could be switching off on high pressure.

Posted on Feb 02, 2009

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Throw it in the rubbish tip.....i owned one and it was waste of money

Posted on Nov 25, 2009

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3 Answers

Centrex airconditioner


Can you please give the model no. so that i can give you the right parts.

Waiting for your reply.

Apr 08, 2008 | Air Conditioners

1 Answer

Dehumidifier ices up on the coolant inlet tubes, but the condenser stays just cool and no water collects in the bucket. The setting is full "on."

You didn't identify what brand and model number dehumidifier you have. But, most have a defrost cycle that takes care of frosting on the inlet tubes, if it gets severe. Also, check the air intake filter. If it's dirty or clogged, the unit has to strain to keep up. If you do decide to pull the filter, turn the Master ON/OFF Switch to OFF and unplug the unit. Wait at least 12 - 15 minutes, before plugging it back in. Then turn the Master ON/OFF Switch to ON and set your controls as you normally do. Give the unit an hour or so, and check the bucket for water. That 12- 15 minute timeout, may have given the unit time enough to reset itself and function as it should.

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I have a electra split system which has has developed a fault which is that when it is switched on the compressor and cooling runs for about 15 seconds and then switches off, if left it will try again...

Several things will cause this, the first I can think of is a bad capacitor for the
fan on the outdoor unit
(If the capacitor fails the fan will not run and the
compressor will go into thermal overload almost immediately and restart after
the internal thermal limit resets itself).

You should shut off system until it can be checked out.

You may also have low refrigerant, if this happens then the "Low pressure switch" will
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Third would be possibly the contactor which controls the compressor, especially if a bug
gets between the contacts or they are burnt.
I would recommend having the unit serviced by a licensed technician .
Hope this helps.

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1 Answer

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I buy alot of those motors through

match up the hp, rpm, shaft size, mounting, voltage, etc... this can take a bit, but you will find a motor for partically anything there...


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The first thing I would check is the outdoor unit coil and see if it is restricted(dirty). If that is the case then you can wash it off with water(make sure you shut the power off to the unit first). If the outdoor coil is restricted and has little air flow thru it ,it can't get rid of the heat from the space and the compressor will draw over amperage and trip the breaker.
The next thing to check is if the outdoor fan is running. If the fan doesn't run it is the same as the restricted coil, it can't get rid of the heat from the coil. Check these things first then we can go from there! Thanks!!

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1 Answer

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