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Member Post posted an update June 9, 2026
Can i enroll to courses using free account
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Member Post posted an update May 26, 2026
May 26, 2026 (edited)
York YT main control board issues
I’ve got a york YT with the codepak microcomputer controls, we had the micro board go bad, had it rebuilt and installed a new time clock chip. Now it attempts to start without a call or turning on the oil pump. Anyone have this issue before?
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Member Post posted an update May 19, 2026
YK centrifical surge warning
I have a 15 year old YK I have inherited 3years back on an account for a highrise. I cannot locate a true medal nameplate but have written on the door of the optiview a model number: YKCCCQQ4-EKG and a charge written in multiple spots of 819lbs of R-134a.
I recently replaced a leaking valve and pulled out charge and after repair weighed in what…
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Member Post posted an update May 28, 2026
Im a 15 year journeyman and just got into a great chiller company and want to learn more about them !
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Member Post posted an update May 28, 2026
Smardt Chiller Support
I’m a Smardt Chiller service engineer.
If you need any support or technical assistance, please feel free to message me. I will respond and support you as soon as possible.- View more comments
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Member Post posted an update June 6, 2026
Trane RTAG UC800 Communication Lost Alarm
Has anyone experienced this issue before? The issue has occurred twice within one week? What was the root cause in your case (communication cable, power supply, UC800 module, display, or firmware issue? Any troubleshooting recommendations would be appreciated.
Thank you.
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Member Post posted an update June 3, 2026
Anyone come across these issues on a newer Daiken agz006f series. They seem to think possible air in the system but we havent gotten air bleeding from the vent on the return line after the startup process a couple weeks ago. The unit runs for a couple hours then throws codes and needs to be reset. Daiken is weeks out for serice they also did…
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Member Post posted an update May 30, 2026
Does anyone have an updated revised copy of the 19 XR frame 3 parts list document ? I believe is catalog number rcd-3519-073.
Also The impeller spacing procedure bulletin number c0405? I know there’s a c0405a in the documents area of the site but I’d like to have both just to compare.
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Member Post posted an update June 3, 2026
York yvaa195 gate driver
Thank you fo the advise and confirmation of removing circuit 1 and shutting it off. The customer has cooling on circuit 2.
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Member Post posted an update June 3, 2026
Mcquay AGS Solid State Starter
Hey guys, I have a Mcquay AGS screw chiller that I need to install a couple of retrofit kits on the solod state starters because the boards have failed. I’ve never messed with these before and I was wondering if anybody had any guidance or tips for how to install these retrofit kits. Any help is appreciated.
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