MAINTENANCE
(by authorised person only)
Rheem recommends annual inspections and if required servicing
by a qualified person to ensure safety, peak performance,
longevity and avoid potential loss of warranty of this appliance.
ISOLATION OF THE WATER HEATER
The water heater should be switched off for servicing or if it is not
used for long periods of time (eg. vacation).
Isolate the water heater according to following steps:
•
Isolate/switch off the electrical power supply to the
appliance.
•
Close the cold water supply stopcock valve at the inlet of
heater
– refer Diagram 3.
TEMPERATURE AND PRESSURE RELIEF (TPR) VALVE
•
It is recommended that routine preventative maintenance is
carried out at least once every 6 months to remove lime
deposits and verify that the valve is operating correctly and
the discharge line is not blocked. Failure of routine
inspection may result in the water heater exploding.
•
Continuous leakage of water from the valve may indicate
a problem with the water heater.
•
To manually operate, carefully lift and release the lever
handle on the TPR valve to ensure the valve operates freely
and allow several litres of water to flush through the
discharge line. Ensure the discharge water is directed to the
floor drain. Avoid any contact with the discharge water to
avoid scalding.
•
If there is no water flowing out, please contact a serviceman.
•
Damage to the water heater due to blockage/restriction at
the overflow outlet will void the
manufacturer’s warranty.
DRAINING THE HEATER AND TPR REPLACEMENT
Warning! Beware of high temperature water.
•
First, disconnect all power to the water heater.
•
Turn off the cold water supply to the heater.
•
Release the pressure in the heater by carefully operating the
TPR valve release lever/knob.
•
Undo the cold water inlet union. Attach a hose to the heater
side of the union. Drain the hose to waste.
•
Operate the TPR valve release lever/knob allowing air into
the heater and water to drain via the hose.
•
Remove and replace the TPR valve
– beware of hot water.
•
To fill heater refer
to instruction “Filling the Water Heater”.
WATER QUALITY
•
The vitreous enamel lined cylinder of the water heater is only
covered by the warranty when the total dissolved solids
(TDS) content in the water is less than 600 mg/L and black
colour coded magnesium anode (supplied with this heater) is
used.
•
The use of an incorrect anode may shorten the life of the
water heater cylinder.
•
The anode installed in this water heater will slowly dissipate
whilst protecting the cylinder. The life of the cylinder may be
extended by replacing the anode. For all water supplies, if
the anode is not replaced during a major 5 year service then
the maximum time after installation when the anode should
be replaced for this water heater is 8 years.
•
No warranty applies to the corrosion resistant heating unit,
supplied with this heater, when the chloride concentration of
the water supply exceeds 200ppm.
WARRANTY CONDITIONS
PLEASE CONTACT YOUR LOCAL DITRIBUTOR
COMMON FAULTS AND REMEDIES
Fault
Possible Causes
Remedies
No hot water flowing
out
1) Cold water inlet supply to heater is closed.
2) Pipes are blocked
3) Water supply is cut off by Utility
1) Turn on the inlet tap
2) Dredge the pipe by plumbers
Water temperature
is not hot enough
1) Terminal block is damaged
2) Earth Leakage Circuit Breaker (ELCB) has operated
3) Element has failed
4) ECO has activated (Hi Limit)
5) Set temperature is too low
6) Thermostat is damaged
7) Water Heater is working
1) Call electrician
2) Call electrician
3) Call electrician
4) Call electrician
5) Raise the set temperature
6) Call electrician
7) Please wait for a while
Abnormal noise is
coming from the water
heater and pipelines
1) Heating up noise
2) Abnormal sound in pipeline when mains pressure is
not stable
3) Scaling on heater element
4) Water Hammer
1) Normal
2) Normal. Close the cold water inlet tap for a while.
3) Contact a serviceman
4) Contact a serviceman
TPR Temperature and
Pressure Relief Valve is
discharging water
1) Expansion of water during heating up
2) Valve is blocked by foreign materials
3) Excessive cold water pressure
1) Normal
2) Operate valve lever to remove dirt deposit
3) Reduce incoming water pressure
4
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