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Member Post posted an update May 24, 2026
I’m Ex Trane with 27 Years at Trane with extensive knowledge of Trane products, CVHA,B, C ,E.F Heli Rotor Screw Series R RTAA, RTHB, RTHE,F, CGAM… also worked on York YK, YT
Member Post, Member Post and 8 others3 Comments- View more comments
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Member Post posted an update June 2, 2026
Trane CVHE500 – AFD/VFD cabinet failure (looking for tech feedback / root cause
Our technician arrived onsite Monday and found the chiller offline. We located a catastrophic failure in the Trane Adaptive Frequency Drive (AFD) / starter cabinet. The damage is concentrated at the line/inlet side of the drive power section.
Both the chiller’s machine breaker was tripped and the MCC main was also tripped.
We isolated the…
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June 2, 2026Screw Chillers June 2, 2026 -
Member Post posted an update May 23, 2026
York yvaa gate driver board
Has anybody seen a gate driver board on a york yvaa blow up. I was wondering if anybody knows if I can take the wiring off of circuit one which is ruined, turn power back on and let circuit two run so that the building has cooling. My fuses are blown, so I have to get new ones and i’m hoping not to have to replace the whole power assembly,…
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Member Post posted an update May 24, 2026
York YCIV
Hello, l have a YCIV0197 machine with a remote evaporator. The total refrigerant charge for each circuit is unknown. Does any one have any technical documents to aid with calculating the refrigerant charge?
Thanks.
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Member Post posted an update May 14, 2026
I just signed up with a new oil analysis group called Bureau Veritas. Does anybody use this company for centrifugal oil analysis?
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Member Post posted an update May 12, 2026
Trane RTAC screw machine does anyone have a part number for the liquid level canister and probe? The one i see on line isnt the one i have and im not sure i can install it unless we get trane to come out it says “software needed” i know the trane sensors meed to be bind wasnt sure if that was the same thing or is this ganna be a new board i need to add
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Member Post posted an update May 14, 2026
Troubleshooting Question HanBell Screw Compressor RC2-310B
Evening everyone,I recently ran a service call and worked on my very first screw compressor that was down to oil fault lockout. It was overwhelming because of it brewing my first time. The compressor had oil inside the sight glass with the red ball floating. I reset the compressor and…
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Member Post posted an update May 13, 2026
Hey guy, newer to chillers and need some help. Heres what ive got.
Daikin AGZ 055BS727
Alarm mhp or motor pro 1 alarm. It’s keeping circuit 1 locked out. Gonna meh compressor 1, but I pulled off the motor protector from compressor 4 that runs and it still populates the same alarm after I installed on compressor 1. Any help fellas?
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Member Post posted an update April 25, 2026
Trane CH530. Someone replaced the flow meter but did not bind. Went out to look at it cuz its tripping on no flow. The flow meter went back to the board with no connector. I just started with a new company and didn’t have the software or the rs232. Are the flow meters bound on these. I just don’t see how the unit runs a short period of… Read more
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