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Is FP on friedrich air and heat unit for freeze protector

My friedrich air and heat unit is on a glassed in porch and the FP was showing this morning ... it got under freezing last night

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Posted on Jan 02, 2017

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  • 26 Answers

SOURCE: outside unit freezing over

check the outside drain in the pan if there is a plug in the bottom pull it out.the ptac unit will go into emergency heat and run more the colder it gets outside

Posted on Nov 25, 2008

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SOURCE: Unit Won't Cool Or Heat Just Blows Air and Displays FP

fp means freeze protection when gets too cold out unit comes on by itself so pipes dont freeze

Posted on Jan 24, 2010

  • 183 Answers

SOURCE: My heat &air inside wall unit is blowing on

The only way to solve this problem is to replace the control board.

Posted on Feb 13, 2011

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1 Answer

I have an LG hotel ac/heat ptac unit. It is showing a code of FP what does this mean?


I'm pretty sure the FP code means freeze protection engaged. It prevents the outside coil from freezing

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Just changed blower motor in friedrich vpak unit still wont blow heat


that would be a problem with switch, heating element or fusible link

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My Friedrich A/C is turning on and off by itself, can you help me?


when the room reaches the set temperature the unit is made to cut off until heating or cooling is needed again, this is the units way of not cooling or heating too much.

May 03, 2011 | Friedrich Heating & Cooling

1 Answer

Sir I have a LG terminal airconditionewr/heatpump unit and when i woke up this morning the unit was on with a digital code FP on the screen. can you tell me what this means.


FP- Freeze protection engaged. Check temp setting not more than 5 degree of your room temp.
Check gas pressure. Due to low pressure also freezing will be there. Check and rectify it.

Jan 14, 2011 | LG Heating & Cooling

1 Answer

Unit shows a code fp. What does this mean?


CODE= FP
STATUS = Freeze Protection Engaged. The room temperature measured by the wirelessremote thermostat or indoor ambient thermistor active sensor falls below 40°F.
SUGGESTED ACTION = No Action required. This setting will disengage when theroom temperature rises above 43°F
Is sit helpful?

Dec 20, 2010 | Amana PTH123B25AJ Heat Pump Air...

2 Answers

Its 15 degrees outside and my amana unit is off. every so often it kicks on by itself and runs for about 10 seconds then shuts off again. while it is running the control panel flashes FP, what is it trying...


I was wondering the same thing about our unit until I found the specs online and read that it has freeze protection. When the temp goes below 40 degrees, the fan comes on to prevent damage to the unit.

Dec 23, 2009 | Amana PTH123B25AJ Heat Pump Air...

2 Answers

LG Air Conditioner/Heat Unit spits cold air


I believe the "FP" probably stands for Freeze Protection and it's there to prevent your outside coil from freezing up and causing your head pressure to drop. To do this, it briefly has to reverse the cycle from heating to cooling. This is normal in a heat pump.

Feb 17, 2009 | LG Electronic Window Air Conditioner

1 Answer

Service code FP


I know some manufacturer's use the code FP for Freeze Protection.

Jan 25, 2009 | Amana PTH123B25AJ Heat Pump Air...

1 Answer

Unit Won't Cool Or Heat Just Blows Air and Displays FP


fp means freeze protection when gets too cold out unit comes on by itself so pipes dont freeze

Jan 17, 2009 | Amana PTC093B50AJ Electric Heat Air...

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