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Does not heat - compressor switches on/off repeatedly

Samsung split unit does not heat - compressor switches on -runs for a while then switches on and off repeatedly. Unit was serviced, circuit board swopped in indoor unit, temperature sensor replaced in indoor unit - problem not resolved.

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Check outdoor fan if running. the outdoor coil will freeze up on heat cycle. or outdoor board if there is one is defective.it could be reversing valve as well

Posted on May 18, 2009

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Posted on Jan 02, 2017

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3 split units run from one compressor one is not cooling


If there is 3 indoor units from one condensing unit
(6 pipes at outdoor unit) this is classed as a multi unit

All units will run correctly as long as they all require same mode, cooling or heating, if one unit decides to heat it will shut down until master unit decides to heat then it will start, for each unit to individually heat and cool there would have to be 3 pipes to each indoor,

Dec 19, 2015 | Fujitsu 9RLS 9000 BTU Split System Air...

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I have samsung split ac 1.5 ton 2.5 years old when am switch on the ac the indoor unit is working when it tires to on the out door unit after 3 minute delay suddenly the ac is restarting but the out d


Make sure all of the pressure switches are closed on the low voltage control circuit on the outdoor unit. If any are stuck open, the compressor will not kick on. Or just push the compressor contactor in with an insulated screwdriver to ensure the compressor does actually work.

Dec 28, 2014 | Samsung Heating & Cooling

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Samsung 2.0TR split ac compressor getting heated up and tripped after running for 10 mins


High limit switch set to high, obstruction in the system, or your compressor may be wearing out.

Apr 12, 2013 | Heating & Cooling

1 Answer

I have a tempstar 2000 heat pump approx. 6yrs.We have the compressor go bad 3 different times and replaced by the original installer.Now Action Air of Florida says they don,t know why so many compressors...


no compressors don't just go bad first of all is unit a split system or a package unit.if its a split system need to make sure copper from evap.coil to outdoor unit sized properly.next need to make sure your ductwork is sized properly undersized ductwork makes comp. run much harder.sounds like non-condensibles in system

Mar 22, 2012 | Heating & Cooling

1 Answer

Hi, I have a goldStar GA 1866VHR split Airconditioner, (5050w cooling and 5040w heating capacity). Today I noticed that compressor/condenser unit was still running after I turned off the aircond: from the...


Thanks for your detailed information. But solution is very simple. The compressor contactor in out door unit. Struck. And hence, when you power on, without indoor commanding, the out door starts running.

Replace same type Contactor relay (In out door unit) immediately. Hope, it's helpful.

Jan 19, 2011 | Heating & Cooling

1 Answer

Hi, I have a samsung aqv18ja series split type air conditioner (cooling and heating) wall unit. the unit was install in 02/12/2009. By "one hour heating and air conditioning". In this short...


Simple, check in your remote. There is an option button "Blow". Just press it. Your unit gets completely off. Please write back if helpful?

Dec 26, 2010 | Samsung Heating & Cooling

1 Answer

When calling for heat the outdoor unit fan cuts off and the compressor stays running after about forty seconds.


Actually, for heating mode, the condenser fan works on pressure build up by Fan pressure Switch. If pressure less the fan won't run.

Dec 08, 2010 | LG Art Cool LA181CNW Split System Air...

1 Answer

Auto delay on splits


All Split ac units have a safety system in them for a smooth switch over.
The delay time is different in all units especialy if they are "Inverters" or "soft start"

To be extra safe , just select prefered Temp and then Put it all on Auto.
Also some models have an anti tamper lock on the remote settings.

Feb 02, 2010 | Heating & Cooling

2 Answers

I'm not getting heat from my unit..


the compressor is controled seperately from the fan, this is done with the thermostat, try turning the thermostat on then of or untill you hear the "click" sound from the thermostat. If the compressor is still not turning on this may be more than you can fix if your not familiar with electrical hvac troubleshoting... more than lilkely the thermostat may be bad, or your compressors starting components are failing...if the compressor is comming on when the unit is turned on you could have a freon leak causing no heat. hope this may help some there is just too much to write on the causes this will give you a start though!!

Jan 17, 2010 | Amana PTC153B50AM Split System Air...

1 Answer

Indoor unit runs ok outdoor unit compressor and fan do not start


Hello rfrizzell,

My unit is giving me the same alarm. If you have found the solution, please email me at danielabrewster@yahoo.com

Thank you very much.

Mar 14, 2009 | Friedrich MR18Y3F Split System Air...

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