Is it just me or is Trane symbio turning on the wrong compressor? simple fix on this one.
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- Опубліковано 6 вер 2024
- settings were to have a discharge temp sensor disabled that function and jumped y1 and y2 to get both compressors running at the same time...
I agree it's not what we're use too but y1 energizes compressor 2. It's gonna take some getting use too.
Cool 1 is NOT the same as compressor 1. Compressor 2 is the smaller of the two compressors. That will always be the first on last off. This is stated in the manual a couple times. The contactor failure faults you are having is because you have Y1 and Y2 jumped out. If the aux switch makes without a call it thinks the contactor is welded.
Circuit 2 is stage 1 cooling, the smaller compressor.
I've seen the proving error, caused by discharge temp sensor.
Just investigate one with that proving lockout alarm with tandem circuit, it was overcharged
Same problem I have compressor number 2 start first
I have the same issue on a 7.5ton proving switch 1st stage issue, and tech supports no help. I replaced the contactor and aux without resolution. Did you find a solution?
We replaced contactor and micro switch and 2 days later ordered a Dainkin unit. We are experimenting with gutting controller on a few units but have not made a final decision to what methods we will use in the future....
Bottom contractor is actually circuit #1. Schematic is labeled wrong. Small compressor is 1st stage. Don’t ask me how I know. Had this exact issue and scratched my head for awhile. Check incoming voltage. Trane taps all their transformers for 240v. Had to tap the transformers for 208v. Haven’t had a single trip since. My control voltage went from 23.2v to 27v. Tranes are super sensitive to anything below 24v
Yeah we replaced the switch and have not been back..
Anybody having issues with these units not dehumidifying in 1st stage cooling? 33% cooling capacity and 66% fan speed. 50+ degree saturated suction temperature not below RAT dew point. I’ve lowered the “max fan speed” as a temporary fix but then when unit runs 100% cooling capacity it like 230cfm/ton.
Buddy I’ve have the same problems gut it rewire as long as your warranty is not in place they do some really dumb things
How are you running the blower?
Can you just move the 24 V wires from one contactor to the other
No, the board will fault out. First thing I tried.
Cool 1 is NOT the same as compressor 1. Compressor 2 is the smaller of the two compressors. That will always be the first on last off. This is stated in the manual a couple times. The contactor failure faults you are having is because you have Y1 and Y2 jumped out. If the aux switch makes without a call it thinks the contactor is welded.
symbio controls are garbage.If you can get it to start anything, just go with it.
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