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Restricted Or No Water Flow
Compressor Cycling on
Overload Protector
5 of 6
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
Ensure water supply service stop valve is fully open.
Verify minimum 200 kPa supply line flow pressure.
Check for twists or kinks in bubbler tubing.
Check the water inlet strainer. Sediment from the main supply can get trapped in the screen
along with installation materials such as pipe dope and flux. The screen should be cleaned
and checked on a regular basis and replaced if needed.
The cartridge valve located in the water control assembly or bubbler can also become
clogged with foreign material. The cartridge valve can only be replaced and not repaired.
The water cooler may also develop a freezing condition in which the water will become frozen
inside the evaporator coil. This indicates a refrigeration problem or thermostat failure in
which case the water cooler needs to be checked by a qualified technician
Check flow adjustment. If necessary, adjust bubbler to site requirements, see Installation
Step #12 [Page 3].
The water cooler may also develop a freezing condition in which the water will become frozen
inside the evaporator coil. This indicates a refrigeration problem or thermostat failure in
which case the water cooler needs to be checked by a qualified technician.
A dirty condenser or a blocked fan will cause a high head pressure and frequent cycling of
the overload protector.
Check the incoming voltage to make sure it is within 10% of the serial nameplate rating.
A restriction or moisture in the system will also cause intermittent cycling. A certified
refrigeration mechanic should be contacted in this situation.
Change the overload or relay if defective.
SYDNEY | MELBOURNE | BRISBANE | PERTH | AUCKLAND
Australia 1300 788 778 www.rba.com.au | New Zealand 0800 722 111 www.rbagroup.co.nz
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