EH330, EH430 and ECC Condensing Unit
Remote Low Side Cuber Service Manual
July 2013
Page 40
Service Diagnosis
Problem or Symptom
Possible Cause
Probable Correction
No ice
No power to ice making section
Restore power
No power to condensing unit
Restore power
No lights on controller
Check transformer
Unit manually switched off
Push and release the On button, ask
user why it was shut off
Power to both sections, controller reset,
but condensing unit does not operate
Interconnecting control wire discon-
nected, reconnect it
Low or high pressure cut outs open,
check system pressures
No power to compressor contactor coil.
Check toggle switch in condensing
unit.
Check EH head compressor relay.
No water to ice making section, controller
blinking water light
Restore water supply, check water
filters, reset controller
Check inlet water valve operation
Check water level sensor
Ice making section has exceeded
maximum freeze time and controller has
shut down the system
Condenser coils may need cleaning
Check condenser fan blade and
motor
Check for excessive air intake tem-
peratures at condenser coil
Check compressor contactor
Check compressor and starting
components
Check water pump
Check purge valve for leak through
Check vapor inlet valve for leak
though
Ice making section has exceeded maxi-
mum harvest time and shut down the
system
Check ice making section for lime
scale build up, clean as needed
Check condenser by pass valve
Check vapor inlet valve
Check headmaster
Check curtain switch
Check inlet water valve for leak
through
Check for obstruction in ice delivery
chute
Condensing unit solenoids do not activate
during harvest
Check solenoid relay in EH head
