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Old 05-01-2012, 10:34 PM   #16
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Refrigerant problem


I believe that somewhere along the way it reduces from 7/8" to 3/4". Liquid is 3/8" the entire way.

Thing is, when I installed this frankenstien condenser (I had to take a new compessor from a new condenser that had severely damaged fins - think Ace Ventura delivering packages- and put it in his old condenser that had a shot compressor, fins in good condition) the thing was working fine, 59 degree supply air at that time. That was about 6 months ago.

Nothing has changed as far as any equipment or the lineset, it's just all of a sudden not working properly, overnight.

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Old 05-01-2012, 10:42 PM   #17
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Refrigerant problem


I am suspecting compressor may have leaking discharge valve ....
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Old 05-01-2012, 10:47 PM   #18
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How you figure? How would that affect the suction vapor?
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Old 05-01-2012, 10:57 PM   #19
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when discharge valves leak they by pass gas into low side raising suction pressure...... and you loose capacity.... not sure that"s happening just trying to help...
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Old 05-01-2012, 11:00 PM   #20
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Refrigerant problem


It's all good. I've just never come across that particular problem, why I asked.
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Old 05-01-2012, 11:00 PM   #21
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Refrigerant problem


is there heat strips stuck on..... just another random thought... temperatures seem out of whack
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Old 05-01-2012, 11:01 PM   #22
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Refrigerant problem


shut system down and listen to hear if gas is flowing in compressor ...suction line gets warm fast when valves leaking....
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Old 05-02-2012, 04:43 AM   #23
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Refrigerant problem


I one or more of the distributors frost/freezes slower then the others, it an indication of a restriction in the distributors.
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Old 05-02-2012, 07:47 AM   #24
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Refrigerant problem


Possible dirty inlet screen on the TXV if it has one.
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Old 05-02-2012, 09:20 AM   #25
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Quote:
Originally Posted by carmon View Post
is there heat strips stuck on..... just another random thought... temperatures seem out of whack

I didn't notice but I'll check today.
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Old 05-02-2012, 09:28 AM   #26
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Quote:
Originally Posted by beenthere View Post
I one or more of the distributors frost/freezes slower then the others, it an indication of a restriction in the distributors.

If that happens, how to correct?
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Old 05-02-2012, 09:57 AM   #27
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Refrigerant problem


I tell the guy yesterday I'd be there this morning and have it fixed this afternoon. So the guy calls me this morning, saying if I can't get to it today than to he'll call someone else, needs it fixed today.

I call Lennox and price the txv and, call him back and tell him the price of the txv (he's paying for it up front) and he says his wife got pissed and called one of her a/c friends.

I told him to never call me again.
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Old 05-02-2012, 10:18 AM   #28
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Quote:
Originally Posted by Doc Holliday View Post
I tell the guy yesterday I'd be there this morning and have it fixed this afternoon. So the guy calls me this morning, saying if I can't get to it today than to he'll call someone else, needs it fixed today.

I call Lennox and price the txv and, call him back and tell him the price of the txv (he's paying for it up front) and he says his wife got pissed and called one of her a/c friends.

I told him to never call me again.
Man what baloney. Haha, watch them get some wack tech who will be pushing them to buy a new unit then tackle this refrigeration problem. Good detective work though doc, it was fun reading your thread.
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Old 05-02-2012, 10:35 AM   #29
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Refrigerant problem


Thanks for the feedback DOC, usually when someone does what they did (call a friend) your better off without that nightmare. Another thing I realize after all the years of dealing with customers mainly the man of the house for HVAC problems.
They don't have any B----, because if they did they wouldn't blame it on their wife they would just say we called someone else, sorry. Thank Your lucky stars. Years ago I used to get so freaked by people who canceled me or gave me some lame excuse why I couldn't complete the work because I just wanted to repair the equipment without thinking of the cost just the satisfaction of troubleshooting, repairing and having a happy customer, the the bill last. That's why I'm not sitting on a beach right now sipping drinks with umbrellas in them.
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Old 05-02-2012, 10:41 AM   #30
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I did want to check on the heat strips so now if the other guy comes out and finds that that is the problem and not the txv than I shot myself in the foot. I did tell him that I needed to check one more thing, though, before he told me his wife called someone else out. It'd be funny if the guy replaces the txv first and then it turns out to be the heat strips coming on while on call for cool.

When the guy called me this morning he asked specifically what was wrong and I told him, "thermostatic expansion valve" or "txv for short." I should've put two and two together right then. I was also going to better the lineset, it as well as the high voltage electrical is sitting in a pan full of water. Brilliant, huh?

I spent a few hours there yesterday and about 30 minutes the night before. Pretty screwed up to to that. Drive time and all, lost.
Whatever, I don't need his measely money, I was doing him a favor as I've done numerous times before. It's the being screwed over that get's me. He himself is a general contractor/plumber so I'm sure he knows how this was going to turn out from my perspective which is:

He can kiss my ass from here on in forever and ever, Amen.

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