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2.5
MOST COMMON FAULTS
FAILURE SYMPTOM
SOLUTION
The indicator light of the
unit operation does not
light up.
The safety thermostat (Thermal fuse) is not self-
reversing, it is triggered when the heater water has
cooled down to room temperature
. The fuse can then
be manually triggered (Figure 7) in a voltage-free state
by pressing the button on the thermostat body.
Failure of the heating element is not
indicated, and the indicator light remains
on even when the thermostat is switched
on.
Have the heating unit repaired by an authorized
company.
Table 2
Figure 7
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.
3
IMPORTANT NOTICES
The following cases do not entitle the Customer to exercise the right from defective performance:
- damage caused by dry operation
- damage caused by lime scale deposits
- damage caused by chemical or electrochemical influences
- damage due to incorrect voltage, lightning strike, or voltage surges
Thermal fuse
