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,,,,,,,,,
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Re: centrex a/c keeps shutting off every 15 minutes (...
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 min.it could be switching off on high pressure.
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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.
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 shut the unit off as well. 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.
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!!
Sounds to me like your compressor is not operating, first check the filter to make sure its not pluged up, if thats not it, you will need a qualified service tech to come a diagnos it for you, but sounds to me like the compressor is bad, hope that helps