RHEEM THERMAL AIR SOURCE HEAT PUMP INSTALLATION, MAINTENANCE & SERVICE MANUAL
RHEEM HOT WATER SYSTEM (ASEAN REGION)
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P a g e
5.1.3 Compressor Will Not Run
Possible Cause
Possible Solution
Overload switch cut-
out (if fitted)
Find cause of overload and reset overload
switch.
System stopped on
safety lockout
A disturbance in water flow may have
triggered the safety lockout. Reset unit by
switching OFF, then back to ON.
If unit does not respond, fit gauges and
check refrigerant charge and HP/LP
operation.
Possible condenser water flow failure.
Check condenser pump water entering
temperature and flow rate.
Motor windings
faulty
Contact manufacturer for replacement.
5.1.4 Compressor Motor Hums But Will Not Start
Possible Cause
Possible Solution
Low voltage
Provide adequate voltage.
Wrong motor connections
Check with name plate or wiring diagram.
Tight or seized compressor
Replace.
No power on one phase
Check circuit breakers, main switch and
wiring for fault.
5.2 Rheem IQ
TM
Model
Refer to
“
Rheem IQ Owner’s Guide and Installation Instructions
”
Manual and/or the
provided Operations and Maintenance Manual for the respective project.
