Fellows,

I have bryant heat pump. Today is 60 degrees and I see my outside unit is frozen! I meant to say it has become white ice block. I have inch and 1/2 of ice inside and outside. Fan was stuck because of ice so after removing ice, Fan is turning. All copper tubes are frozen. What could be wrong? Is my frezon is leaking?


Thanks.

 

Yes you could have a refrigerant leak.
But you also might have a defrost problem.
The unit should go into a defrost mode with that much ice on it.

 

With Scottg here. If the fan is free now you might try and run it in AC to get the ice off to start to check it out . Just a guess now but freon or defrost board????

ED

 

So last night, around 9:00pm when I check fan was turning and unit did not accumalted lot of ice. Outside temp last night was around 40C. This moring once again it block of ice whole unit inside and outside is covered with 1 inch of ice. Fan is still turning.

Question: could it be defrosting circuit. If it is, Is it easy to replace? Why do we think that freezon could be leaking? If its leaking what are the signs..

Thanks..

 

Ok lets say that you take power away from the outdoor unit. Open up the box on the side of the wall and pull out the fuse block, or go to the main electric panel and turn off power to the oudoor unit.
Then defrost the coil, take a hose and run water over the coil on both sides, inside by the fan and the outer side.

Restore power and start unit. Turn thermostat all the way up. Let it run for five min.
Check the copper tubing temperatures
The large line with black insulation on it is the vapor line.
The small line is the liquid line.
The temperature on the vapor line should be 100 degrees higher than the outside temperature.
The liquid line temperature should be around the same temperature as the air comming out of the supply vent.

If this is not so then you don't have the proper amount of refrigerant.

 

Thanks scottg.

I just read your reply just now. I did following this moring.

Shutoff heat (was blowing cold air) and started AC. All the ice got blown away in 5 mins!!
Clean the outside unit (leaves, mud, pine needles, Yes I am in NC).
Started heat (blowing hot air again. I think ice is started to accumate again. Lets see what happens when I have it on for all night. I will try out
your suggestion if I see block of ice tomorrow morning.