Specifications

Stellar Service Instructions REV: D
Date of Issue: 14/09/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”.
20
FAULT FINDING - CHART 4
Insufficient Hot Water
4
Is the
water heater of sufficient
size for the customers
needs?
Is the
T & PR valve
continuously
discharging
water?
Is
the water supply
pressure above
1120kPa?
Is
the water heater
sized as recommended in
the Rheem sizing
guide?
Has
the usage pattern
changed recently? i.e. additional
appliances or people
using hot
water
Recommend a water heater of
sufficient capacity to meet customers
needs
Recommend a hot water usage
pattern that will suit the water heaters
capacity and the customers needs
NO
NO
YES
YES
NO
YES
Existing pressure limiting valve faulty.
Fit pressure limiting valve if not
already fitted.
Replace T & PR valve if required
YES
Is
the water
temperature above
85 degrees?
5.1
YES
Check for crossed water connection
Replace the T & PR Valve
YES
Are
there any
plumbing leaks,
crossed connections
or dripping
taps?
NO
Repair any leaks
Isolate crossed connections
YES
Does
the water
temperature correspond
with the thermostat
setting?
NO
Replace the gas controlNO
Follow diagnostic flow chart 2
to confirm main burner
operation is correct
Main
burner operation
is correct?
Check inlet diffuser is not restricted,
missing or damaged
Check dip tube is not missing, broken
or incorrectly fitted
YES
Rectify main burner fault identified in
diagnostic flow chart 2
NO
NO
Is
the correct
T & PR valve
fitted?
NO
YES
Replace the T & PR valve with one of
the correct pressure rating.
Do not use reconditioned
T & PR valves
NO
Replace the baffle
Is
the flue baffle
fitted?
NO
YES
YES