Rheem 310 Series Service Instructions Manual page 43

Fault Finding – Chart 6
6
Is the
noise only evident
during the heating
cycle?
NO
Is the
noise water
hammer?
NO
Is the
noise only evident
when water is flowing
through the
heater?
YES
Is the
noise a
metallic popping
sound?
NO
Is the
water pressure
more than 80% of the
T&PR valve
rating?
TM025 Rheem Heat Pump Service Instructions REV: B
Date of Issue: 02/08/07
This document is stored and maintained electronically by
Noisy water heater
Is the
noise from the
YES
evaporator
fan?
YES
Is
the noise
mechanical or air
related?
Mechanical
YES
NO
YES
NO
YES
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
Check for loose fittings or pipe work in
NO
Check for possible mechanical failure in
Normal noise level during operation is
approximately 52dB at 1.5 metres.
If this level is affecting neighbors a timer
AIR
should be fitted to prevent operation
during the affected hours or to comply
Refer to water hammer causes in the
Check all other appliances or valves that
machines, dishwashers, ball valves etc.
Cylinder contracting due to pressure
This can also be accompanied by a
Check for a faulty stop cock, non-return
Check for restrictions in pipe work, faulty
appliances i.e. washing machine or
Fit 600kPa pressure limiting valve.
42
the refrigeration system.
compressor
with local council regulations
Fan loose on motor shaft, remove
assembly and tighten.
Fan motor faulty - Replace.
'Common Complaints' section.
can generate noise i.e. washing
release when hot tap opened.
creaking or cracking sound.
Normal Operation.
valve or T&PR valve.
valves, loose plumbing or other
dishwasher.