mitsubishi heavy industries fault

[skeggyboy]

I have been to an old mitsubishi heavy industries split on r22.recently an engineer changed the pcb and discharge sensor was showing fault e35.unit still not running and now showing fault code e34.there is no model number and no wiring diagram.can anybody help

[Shibhrac]

Was it the engineer who decided to replace the printed circuit board? If him i would say he should not been left before he get the job done. I know changing any part without solving the problem increases maintenance cost for nothing . Engineers should think twice before deciding to replace any part. They should also prove by using the correct judgment with the help of the right tools to identify the couse of the fault.

[DL A/C]

e34 can be a number of things, it can be low current or no current detected by ct on l3 or open phase detected at opposite side of contactoror or faulty inverter board. good luck

[skeggyboy]

thankyou dl.have sorted it.the engineer never put L3 back through the ct.thankyou for your help anyway