Questions & Answers for: frost return line

...charging port or some sort of hot bypass at all ? If the large line returning to the compressor is frosting you don't have enough air circulation. Check air filters on inside

...frost is present set you air circulation fan to the on position and turn the cooling to off. Allow the air to circulate for about an hour. Then return the system to the cooling mode. Operate the ...

...frost on the suction line, the biggest line returning to the compressor. If frost is evident at these places you have a defrost system problem. These systems have a defrost timer that defrosts the ...

...return line frosted up? If it is the larger of the two lines check your filters in your inside unit. Also check to see if the fan is blowing. If both of these are ok most likley you are low on ...

Frost on the AC Unit plugged air filter low refrigerant blocked supply or return vents incorrectly sized unit failing compressor restricted line set plugged metering device thermostat turned to low ...

...I have looked at the outside unit and lines going from the unit to the inside of the house are frosted. What is the cause and how to fix it? when lines are frosted you have an air flow problem

...frost on the compressor suction line which will defrost between run cycles. The frost will melt off of the suction line during the off cycle and could be the cause of the water you are finding. Off ...

...frost build up on return line at compressor connections. is there a good service manual out for this? HI thanks for your question. the way that frost builds up on the return line is the freezer is ...

...Doesn't allow the refrigerant to boil off and returns as a liquid. 2. Evaporator coil badly frosted allowing no air flow thru it. Same as #1 3. Runs constantly (days). no demand on system,

frost on the return line why?? dear sir please make sure your air conditioner,s outdoor unit,s fan is working if its working and unit is well clean then it can be low freon gas problem , please refill