[skwsproul]

You either have an air flow issue or a leak that needs to be repaired, assuming an R22 system.

Best thing to do is to get a good evaluation from a reputable company and pay them to fix the problem. Easy as pie. Find a company tha guarantees their work the first time and let them figure it out.

It is amazing that you are able to diagnose that with so little information. Uh hire a company to do your job for you, brilliant why did I not think of that. You need to be careful not to lead a person in the wrong direction, it can be very costly to both the customer and the contractor. Not trying to be mean but try to get all of the info before you take blind stabs at the problem, it is kind of like defrosting a freezer with an ice pick.

 

[skwsproul]

Recover charge. And weigh it back in.

Agreed as long as everything else is in proper order.

 

[shallowluv]

Twilli says whats CFC?

Cant fix correctly

 

[Jogalloway]

From everything i have gathered, I do not think it is a airflow problem. I am going to recover, open and check orifice, install a new filter drier and sight glass which it does not have now, weigh in charge and see what happens. Thanks skw and beenthere, hope to get to pic your brain more when i qualify for pro board!

 

[MLeonhardt]

Thanks guys, compressor was changed in april 08, no problems until last week, lady called office and said she had ice all over filter, another tech checked the first time and said filter was dirty and low charge, he changed filter and charged unit. Lady calls back to the office on thursday of this week and said it was froze again. i checked this time, let unit thaw, turned on cool, hooked gauges up and had 38psi low and 130 psi high, thought to myself we have a leak, walked to shop to get nitrogen etc and other tools, returned to unit about 20 mins later and i had 72 psi low and 250 psi high. Condensor was pulling some major heat out, i cussed to myself a little bit, evap. fan was set to run low speed, I installed black wire from motor to control board to run at high speed you could feel and hear the change in motor when I started back up, cleaned evap. coil and condensor, thought to myself that fan was on low speed was the problem. Turned unit back on, check gauges and it was doing the same thing as before. Been keeping check on unit since friday and it is cooling but just a matter of time before conditions are right to cause it to freeze up again and the lady can yell at me again. Ha Ha

I would replace the evap fan relay..had that happen more than once. It sounds like you are on the right track with the air handler.

 

[Shophound]

You say the evap coil is clean...have you cleaned it or are you only saying it looks clean?

How clean are the indoor blower wheel vanes? If you cleaned the evap coil but missed the vanes, you're not done yet.

 

[diverdan]

Your criticism of my diagnosis reflects an unsound technical background.

 

[Gunslinger]

if it's a TXV system, could be a plugged equalizer.

 

[diverdan]

I concur

 

[Jogalloway]

It has an orifice, yes evap coil has been cleaned and fins on fan do not have any dust or buildup of any kind on them.

 

[Jogalloway]

Evacuated system, checked orifice and it was full of dirt, cleaned orifice, installed new filter dryers and system works like a charm now! thanks to everybody's opinion i have learned a couple of good lessons trying to figure out this units problem.

 

[skwsproul]

Evacuated system, checked orifice and it was full of dirt, cleaned orifice, installed new filter dryers and system works like a charm now! thanks to everybody's opinion i have learned a couple of good lessons trying to figure out this units problem.

Good Job!

 

[big john air]

big john air

i'm not a professional but i play one every day. check your blower cage for cleanliness. you will probabilly find it is filthy. apartment tenants are the worst about running a unit filterless and then getting mad later at everybody else when it stops cooling. if you don't know how to go about cleaning the blower then just ask me. i remember when i was a rookie there were plenty of smart ass veterans out there and looking at some of the responses given to you i see there still plentyful.

Help!! 2.5 Ton Goodman Heat Pump, when unit first turns on in cool, the suction psi is between 35-45psi, head pressure is between 125-150psi. These pressures hold steady at those psi's for 15-25 mins then both pressures slowly start rising and steady off at 70-75 low and 250-270 high depending on conditions. Problem is if pressures do not start rising fast enough sometimes unit will start freezing at evaporator. Unit does not freeze all the time just sometimes very infrequent. The air filter is clean, evaporator is clean, condensor is clean and evap. fan is running good on high speed. Could I have a restriction at the orifice, but usually the circumstances are the reverse of what i am finding. Any thoughts would be appreciated. The compressor was replaced in April 08 and has been running good up until about a week ago.

 

[Tiger93rsl]

if in doubt replace unit

 

[RoBoTeq]

Evacuated system, checked orifice and it was full of dirt, cleaned orifice, installed new filter dryers and system works like a charm now! thanks to everybody's opinion i have learned a couple of good lessons trying to figure out this units problem.

Huh? Dirt? How'd that get there? Filter/dryer.....s? How many? Where?