Clivet Chiller

HI all,

Got a call to look at a chiller last week. I haven't done any works on these Clivet chillers.
Model # WSAT-XSC150F

Customer told me that the previous maintenance company said a new EEV was needed.

When I looked at the panel the following error codes are displayed
U1/CMP2
E128 Steeper Mot or Error Alarm

U1/CMP2
E103 Evaporator pressure probe

Just wondering if I should change the EEV, the EEV module and the Evap probe?

Thanks in advanve.

Change the evap probe first , if that doesn’t rectify it change the controller . You can get a manual controller handset to drive the stepper valve to see if it’s working most of the stepper valve manufacturers make these testers

Hey Glenn, solid advise.
That's interesting on the manual controller.. need to look into that a but more..

Motor error may indicate a fault with the stepper motor coil. You could check for continuity between the motor poles. Should have 2 separate motor coils. You may have continuity between terminals 1&3, 2&4 for example.

Thank you Conrod,

When I get back to site, likely 2019 now, i'll check this out.

Hi Guys, still haven’t got back to this chiller. Waiting on parts.
But I have another error on an identical model as above.
E126 SPI faulty alarm.
Manual says E126 is MAX TS TEE peralarm.
It doesn’t reset. Any idea what this is ?