Most Frequent Function Failures And Their Causes; Important Notices; Installation Regulations - Drazice TO-20 Operating And Installation Manual

2.8 MOST FREQUENT FUNCTION FAILURES AND THEIR CAUSES

FAILURE SYMPTOM
Water in tank is cold
Water in the tank is not
warm enough
Water in the tank is
cold
Water in the tank does
not correspond with
temperature set
Table 4
Do not try 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

3.1 INSTALLATION REGULATIONS

- Without a confirmation of performed electrical and plumbing fixture issued by an authorised
company the warranty certificate shall be void.
- You have to apply for approval of a local power supplier to connect the heater.
- All hot water outlets must be provided with a combination faucet.
- It is not allowed to handle the thermostat in any manner whatsoever, aside from temperature
resetting with a control button.
- All electric installation handling, setting, and regulation feature exchange, may only be
implemented by an authorised service company.
- The thermal fuse must not be turned off. In case of thermostat defect, the thermal fuse
interrupts electric power input to the heating element if the water temperature in the heater
exceeds 99°C.
LED
• LED is on
LED is on
•
•
LED is not on
•
LED is on
SOLUTION
• Heating element failure
•
Heating element failure
•
Thermostat failure - the
safety fuse turned off
electricity supply
•
Power supply outside the
heater discontinued
•
thermostat failure
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