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We recommend checking and cleaning the tank from lime scale and eventual replacement
of the anode rod after two years of operation. The anode life is theoretically calculated
for two years of operation; however, it changes with water hardness and chemical composition
in the place of use. Based on such an inspection, the next term of anode rod exchange may
be determined. If the anode is only blocked with sediments clean its surface and, if used up,
mount a new one. Have a company in charge of service affairs deal with the cleaning
and exchanging of the anode.
2.9 MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES
FAILURE SYMPTOM
Water is cold
Water is cold
Water is not warm
enough
Temperature of water is
not corresponding with
the temperature set on
the control
Water is constantly
dripping off the safety
valve
Do not attempt to repair the failure yourselves. Seek either expert or service help. It does not
take much for an expert to remove the defect. When making a repair appointment, report
the type and serial number you find on the performance plate of your water heater.
INDICATOR
•
Light on
•
Light off
•
Light on
•
Light off
Table 4
SOLUTION
•
low temperature set
on the thermostat
•
heating element failure
•
No supply voltage!
•
Thermostat failure
•
Safety thermostat shut off
probably due to failed
operation thermostat
•
failure of one of the coils
in the element (3 x 1100W)
•
Defective thermostat
•
high input pressure
•
defective safety valve
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