CellarPro 4000SWC SPLIT SYSTEM WATER COOLED, 7649 - Manual (Page 38)

38 V10.14
Other Troubleshooting Issues
Issue Possible Causes Potential Solutions
No cooling: no refrigerant
flow.
If the "snowflake" icon is
illuminated on the
temperature display
control, the compressor
should be running. Electronic Control:
No power to
evaporator
Valve control: no
power to liquid
solenoid valve coil Power supply to Evaporator interrupted. Restore
power.
(Valve control only) Power supply to solenoid coil
interrupted: loose wire. Inspect for loose fan
wiring and reconnect.
Solenoid coil
failure (Valve
control option only) When the Evaporator is powered on and off, a
distinct "click" should be heard indicating the
opening/closing of the solenoid valve. If not, the
solenoid coil may need to be replaced. Consult
factory.
No power to
compressor Power supply to Condensing Unit interrupted.
Restore power.
Check for loose wires and reconnect.
Low pressure switch is open: On Valve control
systems, make sure solenoid is energized.
Jumper out switch to check for a faulty switch,
and replace if necessary. Note that in
installations below 0°F this switch may remain
open. Consult factory.
High pressure
safety shutdown /
high discharge
pressure Locate and correct source of high condensing
head pressure:
Refrigeration line blockage
Check water supply inlet pressure and
temperature for sufficient flow of cool water.
Flush water valve.
Improper refrigerant charge: inspect for over-
charged system or non-condensables in system.