Own a heat pump, and the air conditioning unit froze up what causes this?
Answers:
ICE Buildup on indoor coil. Heat pump. OK. From a PRO. Some simple things.
#1 You can check your filters. Lack of airflow is one cause of ice up.
#2 Low Charge of refrigerant. This is something you cannot check. If it is low on refrigerant, then you have a leak. Contrary to what some say, "freon" just doesn't disappear.
#3 You are trying to run your home below a temperature that your unit is capable of obtaining.
Simple answer - Call your local HVAC contractor. Not Billie Bob's heating and lawn care. Pay the $100 for a service call and ask questions, if you don't understand what they are telling you, let them know.
Don't run your system in this condition, you can burn up your compressor. then it is $$$$$$$, I love those calls.
Other answers:
It should cycle to prevent this. If freezing up the thermo sensor that signals the unit to shut off is not working and needs to be replaced. Call a pro.
It should cycle to prevent this. If freezing up the thermo sensor that signals the unit to shut off is not working and needs to be replaced. Call a pro.
It might need to be charged
or taken out of its case and cleaned
An A/C unit will freeze because your thermostat is set way too high!! You know that knob high medium or low....use it.
It may need freon.
gary is close, ac has to run a defrost cycle....there is a valve called the auto reversing valve that turns to allow this..they get stuck alot! this is the main cause of frosting and not blowing cool air.......
lic. gen. contractor
FIRST CHANGE YOUR FILTERS. SECOND INCREASE FAN SPEED ITS NOT MOVING ENOUGH AIR HENCE THE FREEZE UP.