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  1. Replies
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    testing loads 24 volt circuits

    Recently had a ignition problem did the factory check out procedure of Robert Shaw inter pilot board check voltage, spark etc numerous times was checking PV to common at ignition module...
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    2,418

    From what I read the pressure should be highter...

    From what I read the pressure should be highter during unloading. I think using an adjustable oil diff control is the best way, you can set it the way you want it.
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    Any follow up to this post? Had a prospect ask...

    Any follow up to this post? Had a prospect ask me to quote retro fitting an old mcquay centr chiller to 3 turbo cores....I said no way! not us....... I would rather see you invest in a new chiller...
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    2,418

    End bearings looks like swiss cheese the wall is...

    End bearings looks like swiss cheese the wall is so worn out its almost paper thin.
  5. Replies
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    2,418

    just opened up compressor today 10 months after...

    just opened up compressor today 10 months after start up, found main bearing seized and worn end bearing. Not good!
  6. Replies
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    2,418

    Have a new reman trane crhe100 R22 compressor oil...

    Have a new reman trane crhe100 R22 compressor oil net pressure on start last year 73psi This year start up check found net oil at 40psi running unloaded at 60psi suction. This is 2nd...
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    2,754

    Had similar problem with 80% 1997 amana, no heat...

    Had similar problem with 80% 1997 amana, no heat calls intermitted. Got there unit is calling, inducer running, ignitor is on, not gas? checked all safeties ok? tested incoming voltage to gas...
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    2,107

    Had 123 volts from voltage terminal on board to...

    Had 123 volts from voltage terminal on board to board neutral. So relay and board are working. Its a run capacitor PSC motor. Funny thing is the sound is like a howl sound. New motor, new...
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    2,107

    Funny 6 years later on a York 80% I have same...

    Funny 6 years later on a York 80% I have same problem, change motor and capacitor voltage is 125 Motor drags on start up like its struggling to reach RPM??? Not good
  10. Update on 507c MS50 module replacements. ...

    Update on 507c MS50 module replacements. Installed new module in 2011 ruputured one heat exchanger already and new module less than year old has also ruptured an heat exchanger. Not sure what...
  11. Replies
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    724

    capacitor with little oil on it??? not good. I...

    capacitor with little oil on it??? not good. I would test capacitor, install time delay relay and hard start kit on it.
  12. could be off on coil frost control as well.

    could be off on coil frost control as well.
  13. Ruptured heat exchanger

    FYI Installed replacement R407C modules last few years, ruptured heat exchanger on each module. Can not tell yet if it was evaporator or condenser. We do have an open tower on it, with...
  14. Replies
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    4,426

    Just had a to repair a Larkin unit, not many if...

    Just had a to repair a Larkin unit, not many if any vendors carry any repair kits. York parts had a solder type kit we used, it worked. Many I see are epoxy type. Problem is most newer...
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    So I am hearing more contractors are charging an...

    So I am hearing more contractors are charging an extra fee for environmental charges across the board on all invoices? not sure why thought this would only apply to freon related work, repairs,...
  16. Thread: Craig Mfg.

    by hvacdoctor
    Replies
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    2,918

    so craig refrigeration equipment is not longer in...

    so craig refrigeration equipment is not longer in business? anyone take them over? I have a customer with a ice cream freezer chest with a custom counter top made over the thing. was looking...
  17. Replies
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    1,162

    I have a York ycas chiller want install reset...

    I have a York ycas chiller want install reset controls on it for leaving water temp?
  18. Replies
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    1,262

    Getting to know ice rink refrigeration

    Experts out there, any good links or info on ice rink refrigeration systems out there you can share? Have R717 and R22 systems in operation want to learn more about these systems.
  19. national comfort cpg restricted cap tubes

    Anyone know about issues with these through the wall National Comfort Products CPG305 Have restriction in cap tubes spot cooling frosting up top tubes. High super heat high subcooling, low...
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    1,517

    space pak replacement options?

    Have old ESP3036 blower motor is obsolete on it R22 leaks etc. Option to replace this unit Spacepak rep says need to change out ductwork need kits etc etc. Anyone replace spacepak with another...
  21. Replies
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    1,718

    Need to verify if oil is bad? if its old unit...

    Need to verify if oil is bad? if its old unit that should be mineral oil, I woudl rx11 flush system out, sporalan dryers, use flare connectors and iso valves if possible for changes. retest...
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    5,482

    So what your saying is you have manually remove...

    So what your saying is you have manually remove the header, clean each tube??? cant backflush with pressure? How can you check on this to verify 100%
  23. Replies
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    4,435

    I know this an old post, but I have a ALS A...

    I know this an old post, but I have a ALS A vintage with bad oil on one circuit. I dont know what the existing oil is? Either old Mcquay oil or the new stuff? Anyhow it has no oil separator...
  24. Replies
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    Man I love this Post. Not to mention the...

    Man I love this Post. Not to mention the procedure for testing oil is something that 99.4% OF HIGHLY QUALIFIED TECHS DONT KNOW HOW TO DO. I asked 6 highly regarded techs I know how they would...
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    528

    No flex connector. Sound is just the gas...

    No flex connector.

    Sound is just the gas burning and cumbusion through manifold. I have seen this on some Trane 90+ units before..... Just seeing if anyone has had similar complaints
  26. Replies
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    528

    Ok I tested unit with higher and lower gas...

    Ok I tested unit with higher and lower gas pressures to see if sound changed! It did not. Pressures were steady.
  27. Replies
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    528

    loud light off payne pg9m

    Have a 4 year old or so Payne PG9maa060120 on light off get a loud howling sound??? checked burners, orifices, adjusted gas pressure down and up, etc. Cant seem to find out what's causing this?...
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    1,144,911

    Poll: Keep believing and keep the faith! One day at...

    Keep believing and keep the faith! One day at a time brother! God Bless!
  29. Replies
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    3,667

    Just a follow up Mcquay factory support...

    Just a follow up Mcquay factory support sucks.....they call you back in days if at all. #2 everything thing they mastermind is to keep mcquay service in the loop they rather the customer call...
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    With that much piping your going to a bunch of...

    With that much piping your going to a bunch of oxidation breaking lose a simple suction filter should do the trick, pull it after a week or two of run time, or flush the piping with some Rx11 but...
  31. Replies
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    Good luck finding those??? Trane factory...

    Good luck finding those??? Trane factory service like most of the big MFGs keep those under lock and key. You will not find much on the web unless its on a board or blog discussion.
  32. Replies
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    nothing more frustrating on a newer system! ...

    nothing more frustrating on a newer system! IMO would check your hoses and gaskets. Yes I it happened to me! So check those out and test your guages every once in a while.
  33. Replies
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    Thanks for the advice. I was thinking of using...

    Thanks for the advice. I was thinking of using recovery tank, evacuate it, weigh it with hoses on it, fill up 1lb of liquid freon from system, bleed back the freon and re weigh the tank again??? ...
  34. Replies
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    checking oil through freon sample how?

    Need to check percentage of oil in freon liquid sample on mcquay chiller. Do you use a recovery or other type of container to pull the sample? Any insight on the best way would be helpful.
  35. Replies
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    how to check oil % on this machine

    IS there a operating proceedure or instructions to pull a liquid freon sample and check oil? Mcquay says to do a weigh in before and after so you determine the oil left in sample??? Specifically...
  36. Replies
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    I went to a trade school after completing college...

    I went to a trade school after completing college and getting my BA. I worked part time in my younger years for a hack and wanted to learn the business and trade the right way. I had prior sales...
  37. Replies
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    I recently had an issue with 10 year old Carrier...

    I recently had an issue with 10 year old Carrier HE 9+ 50mca series where the drain trap was plugged, and leak in 2nd heat exchanger dripping into blower compartment. NO CO in house but the acids...
  38. Had a call yesterday...... FROM MY MOM. The...

    Had a call yesterday...... FROM MY MOM. The York furnance installed 3 years ago not heating. I go there find a 3 fault. AGAIN stuck pressure switch, tested inducer Ok, check drainage clear,...
  39. Update got an digital works great, I think its ...

    Update got an digital works great, I think its UEI?

    Anyhow, found similar problems with Carriers. Come to find out pressure switch would not make due to poor drainage of heat exchanger. ...
  40. Murphys law just worked on another 58mca backing...

    Murphys law just worked on another 58mca backing up water in the heat exchanger....drap trap is plugged up. unit is 7 years old.
  41. Here is another thought. Say your running a...

    Here is another thought. Say your running a drain through humidifier that is dumping more water than the furnance is producing and they both mix in the drain. Will mixing water delute or lessen...
  42. high efficiency furnance condensate water fumes is it toxic?

    Recently removed a Carrier 95% eff furnance 58mca100 and found a condensate leak in the lower heat exchanger that had been dripping water to the blower compartment (all rusted out bad). The smell...
  43. american standard freedom 90 ignition issue

    Get there customer had already pulled and tried to clean flame sensor and ignitor.....Anyhow cleaned system found rollout tripped on it. put back together again, started up ok, amped ingitor ok. ...
  44. Automated Logic Stats reading 0F for some reason

    Customer has various 10k zone senors reading 0F for some reason. Rebooted system checked again, the same? What could have happened to cause this problem? System is over heating thinking its...
  45. I have tried teeing into the pressure tubing a...

    I have tried teeing into the pressure tubing a few times with a magnehelic 0-2" wc scale. had issue with york tubing seemed larger than 1/4" opening so I cut back a half inch but it still was not...
  46. Just had another York code 3 on a 2 year old 2...

    Just had another York code 3 on a 2 year old 2 stage 95+ I had installed a 2nd drain trap tee in the vent and the only thing I found was the pig tail was set up too high or close to the tee.
    ...
  47. Replies
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    I dont think they will do offer a credit because...

    I dont think they will do offer a credit because way back then there was tech bulletin out.

    Yes that is the issue single wall pipe and below dew point issues.
  48. Replies
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    2,605

    Can't really check that if the unit is in...

    Can't really check that if the unit is in operable and rusted out. The problem is you can check it the hour your in there but when you leave the customer can change and run the units any way...
  49. Replies
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    If I recall after visit afer visit they decide to...

    If I recall after visit afer visit they decide to give me a new heater but no labor credit for any of the service calls or the install. Good luck and I would let the factory know about it.
  50. Replies
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    Older post I know but just lost program on 3 unit...

    Older post I know but just lost program on 3 unit boards while changing batteries on them and the boards had power to them???? Anyhow the datalink module used to communicate with Siemens is bad and...
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