Diagram 6.
Electrical Connection o
f the Robertshaw “ST”
Thermostat/Thermal Cut-out
MAINTENANCE
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 6.
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 T&PR 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”
WARRANTY CONDITIONS
RHEEM MANUFACTURING COMPANY (SINGAPORE) PTE LTD, representing Rheem Water Heating Appliances will guarantee the
heater for a period of twelve months from the date of original installation and operation against defect through faulty materials and
workmanship.
RHEEM MANUFACTURING COMPANY (SINGAPORE) PTE LTD will warrant replacement of any part or parts which prove to have
been defective and which have not been misused or carelessly handled. Rheem reserve the right to decline responsibility where
installation has been incorrectly carried out
and not in accordance with the manufacturer’s instructions which accompany each
appliance. Where a failed component is replaced under warranty, the balance of the original heater warranty will remain effective. The
warranty only applies to the water heater and does not cover any plumbing connected to the heater, eg. pressure limiting valve, stop
cock, non return valve, etc. Dated proof of purchase is required prior to commencement of warranty work.
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
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
Rheem Water Heating Appliances
Rheem Manufacturing Company (Singapore) Pte Ltd
VN 093 00 01 - 04
4