Rheem 325 II Series Service Instructions Manual page 38

Fault Finding: Chart 8
8
Noisy Water Heater
Is there any evidence of broken
or fractured refrigerant piping, in
particular the suction line and / or
the TX capillary tube?
NO
Is the noise only evident when
power is available to the heater?
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?
YES
TM077: 325 & 410 Series II Heat Pump Service Instructions
Rev 00: Issued April 2014
This document is stored and maintained electronically by
Is the TX capillary tube the ONLY
broken pipe?
YES
YES
Replace the TX valve.
Is the noise:
A "jack-hammering" sound?
Severe and / or includes
YES
vibration of the heat pump?
An abnormally loud
compressor?
NO
Is the noise due to insufficient
support under the heat pump
module‟s feet?
NO
Is the noise due to copper pipes
or flexible hoses rubbing against
each other or other components?
NO
Is the noise due to loose fittings
or sheet metal rattling?
NO
Is the noise due to normal
compressor operation?
NO
Evaporator fan noise –
mechanical or air related?
MECHANICAL
YES
NO
YES
NO
NO storage tank) MUST be immediately
YES storage tank) MUST be immediately
Requested the installer to rectify the
YES
Separate the components that are
YES
Tighten the loose fittings or sheet
YES
YES
If this level is affecting neighbours, a
AIR operation during the affected hours or
Refer to the Common Complaints
Check all other appliances or valves
that can generate noise, such as
washing machines, dishwashers, ball
Cylinder contracting due to pressure
release when a hot tap is opened. This
can be accompanied by a creaking or
Check for a faulty stop cock, non-
1. Fit a 600kPa pressure limiting valve.
2. Check for restrictions in the pipe
work, faulty valves, loose plumbing or
other appliances such as washing
Service. All printed copies are deemed uncontrolled.
The heat pump module (not the
decommissioned and replaced.
The heat pump module (not the
decommissioned and replaced.
installation.
making contact and insulate if
necessary.
metal fixing screws.
timer should be fitted to prevent
to comply with local council
regulations.
Fan loose or bearing failure.
Replace fan assembly.
section.
valves etc.
cracking sound.
Normal Operation
return valve or T&PR valve.
machines, dishwashers etc.
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