Search found 10 matches

by chuckwp
Wed Oct 04, 2017 6:28 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

Going to refund the customer on the Parts & Labor to replace a perfectly good condenser unnecessarily? . Refund? The job was still a work in progress when condenser replaces so, the customer had not paid anything yet. However, not sure I would call a 22 year old condenser perfectly good. No, no...
by chuckwp
Wed Oct 04, 2017 6:22 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

Cusser wrote:Wow. several weeks to track this down, when a test can be made with a sheet of paper......

Anyway, good find.

Yeah, not it was not the epitome of efficiency now was it. I believe the boss did the paper test. I asked the tech many times about the fans....
by chuckwp
Sun Oct 01, 2017 4:46 am
Forum: Automotive Air Conditioning Procedures, Tips and FAQ.
Topic: Testing with Thermocouples
Replies: 1
Views: 397

Testing with Thermocouples

Are any of you using thermocoupeles for diagnosis? I am considering buying the below tool but, looking for opinions before shelling out $250.
omega.jpg
omega.jpg (8.78 KiB) Viewed 397 times
by chuckwp
Sun Oct 01, 2017 4:42 am
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

So, after repeatedly telling me the fans were working correctly, the boss and tech found the condenser fan to be running BACKWARD!!S Aftermarket fan, wired backwards, pushing hot air from the radiator instead of pulling hot air from the condenser! When this first started, I asked him if he was sure ...
by chuckwp
Wed Sep 27, 2017 4:58 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

Condenser airflow issue. Spray the condenser with water & watch the pressure drop like a rock. Fan(s) not working / worn out & not reaching full speed etc. Fans working correctly. Does not make sense. Cannot find a restriction in the high side. No cold spots on the condenser. When/if we fig...
by chuckwp
Wed Sep 27, 2017 4:09 am
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

Update. Condenser has been replaced. Still excessive high pressure. (450 PSI) So, all major components have been replaced except evaporator. New compressor, condenser, drier,and expansion valve. Refrigerant charge level is correct and oil amount verified. It acts like a restriction in the high side ...
by chuckwp
Tue Sep 12, 2017 5:38 pm
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

Re: High Pressure Mystery

[quote="Cusser"]Is that a serpentine type of condenser? Those are more likely amenable to reverse flushing than the parallel flow condensers, where solvent can bypass many passages. That's why parallel condensers are most often just replaced with new.[/quote I am not sure what type of cond...
by chuckwp
Tue Sep 12, 2017 4:54 am
Forum: Automotive Air Conditioning Forum
Topic: High Pressure Mystery
Replies: 15
Views: 1372

High Pressure Mystery

Trying to help out a fellow tech. in the shop. !996 VW Eurovan came into the shop with no cooling. Single A/C - front only. Technician replaced compressor, drier and espansion valve, flushed out condenser and evaporator, evacuated system and charged with correct amount of correct refrigerant. When f...
by chuckwp
Thu Jun 30, 2016 4:43 pm
Forum: Automotive Air Conditioning Forum
Topic: 95 Accord poor cooling.
Replies: 1
Views: 490

95 Accord poor cooling.

Background,. This car came to our shop with customer wanting us to install a compressor and drier he had purchased.. This was diagnosed by a different shop. You see where this is going, right? I would have kicked him out the door but, it was not my decision. The boss said do it. The tech that did th...
by chuckwp
Thu Jun 30, 2016 4:22 pm
Forum: Automotive Air Conditioning Forum
Topic: Introduction
Replies: 0
Views: 8023

Introduction

I am a newbie and just wanted to say hello. I am a repair tech and occasionally have a problem or, need repair advice. i am also willing to try and help if I can. I do have a problem child car now but, will start a thread on it.

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