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I have 11 tr multi outdoor ductable units of blue star. after starting the system once the set temp get outdoor goes turn off than after that temp will not go up so that the system will go on again?

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Posted on Jan 02, 2017

  • 32 Answers

SOURCE: Model CCA36FCC Mfg No P1258004C Issue: The

find another teck sounds like its low on freon if it has a txv it could be malfuncitioning!!!

Posted on Aug 30, 2010

girdhar_a
  • 1 Answer

SOURCE: LP,HP AND CF APPEARS ON

after starting of ac units it shows lp hp but once reset than the lp hp thing goes away what is the reason for showing lp, hp in the morning when started first time in the morning

Posted on Aug 30, 2012

  • 4 Answers

SOURCE: lg split ac outdoor unit delayed start

acctullly when indoor unit on then outdoor unit take 3 to 5 minut taking on.
and secondly when indoor unit regain its temoerature as we set on indoor ac then it trips the out door unit.
when 3 to 4 degree exceed the temperature then it again start the outdoor unit.

reply if u understand
zil.muhammad@yahoo.com

Posted on Jun 09, 2013

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Check the air filter and if it is dirty, replace..
Turn equipment off and let the ice melt.
After ice melts, place a/c in cooling mode and set the thermostat to 3 degrees below room temp display.

The indoor unit fan should start blowing cold air immediately and then turn off once the room temp drops one degree below the cooling temp setting.
If the indoor unit does cycle off, check the outdoor unit and make sure it turns off at the same time.
If the outdoor unit continues to run and the indoor fan is not running, the indoor unit will ice up.
A defective compressor relay that is stuck in a closed position will cause icing of the indoor unit because it keeps the compressor running when it should turn off with the indoor fan.

Do you have an error code being displayed on the controller?
Is there an led light that is flashing on the indoor unit?

Another possibility causing the indoor unit to ice up is if the freon in the system starts to get low.
Make sure the ice has all melted for this next check.
Pretty easy to check without special tools.
If the air filter is clean and there is no dust/ dirt blocking the fins on the indoor unit, turn a/c back on to cool and check that the indoor unit fan comes on and is blowing air good.
Once everything seems to running good go to the outdoor unit.
There will be two lines with black rubber insulation covering them.
Peel back the insulation three inches on each line and observe the copper lines.
If either line starts to frost up the a/c system is most likely low on refrigerant.


Another cause of indoor unit icing could be that the aluminum fins behind the air filter are clogged with dust or other foreign material.
This would block the air that must be pulled in causing the indoor unit coil to become too cold due to lack of air flow and it will ice up.

Operating the cooling system when the outdoor temperature is below 60 degrees can cause the indoor unit to ice up also.

I'm Robert.
Florida certified a/c contractor. 30 years experience.
Hope this helps.


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after starting of ac units it shows lp hp but once reset than the lp hp thing goes away what is the reason for showing lp, hp in the morning when started first time in the morning

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I would start with your outdoor thermostat located in
the unit outside. I`m assuming this is a heat pump.
When the outdoor temthermostat is set to say 40F
anything lower than that and you are not using the
compressor, you are using electric heat thats located
in the air handler unit in the house.

I`m also assuming this is a split system and not a
packaged unit. If you are mechanically inclined and
you can locate the outdoor thermostat lower it below
the outdoor air temp and see if the unit comes on.

Sounds like you might have a problem with your electric heat or emergency heat

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