INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
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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Troubleshooting
Before making any of the repairs listed, make sure the water cooler is disconnected from the electrical supply and the water
supply valve is shut off.
Problem
Probable cause
Compressor Does Not Run
Check the power supply cord.
Check the electrical receptacle for power and correct voltage. The incoming voltage must be
within 10% of the rated voltage on the serial nameplate.
The cold thermostat is accessible by removing the bottom access cover. If the cold
thermostat capillary bulb loses its charge or becomes kinked it will fail in the open position
causing a disruption of power to the compressor. Unplug the water cooler, using an ohm
meter, check for continuity across the two electrical terminals on the thermostat. Install a
new thermostat if there is no continuity.
Check for loose wires within the compressor box. The incoming power leads must be
connected to the overload and relay. If all components check positive for continuity, then test
the wiring harness plug for continuity.
Compressor Runs –
Water Is Warm
The most common cause for a water cooler to run without producing cold water is a loss of
refrigerant. The water cooler must be taken to a certified refrigerant technician for repairs.
Make sure the condenser fan motor is operative. The fan blade must turn freely to help
remove the heat of compression.
An incorrect refrigerant charge, restriction or defective compressor [not pumping] will also
cause the compressor to run without producing cold water. All these signs indicate a problem
within the refrigeration system and the water cooler must be checked by an authorized
service company.
Noisy Operation
Check to make sure the fan blade is rotating freely.
Make sure the water cooler is correctly mounted to the wall. Absence of the two lower
mounting bolts may cause excess noise and vibration.
Check the compressor mounting to make sure the pins and clips are not rattling. If the
compressor appears to be noisy internally, it must be replaced.
Continued....
