NARVI SMOOTH 9kW, Installation And Instruction Manual

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11. TROUBLESHOOTING:
All service operations must be done by professional maintenance personnel.
Electricity supply to the heater must be switched off from the fuse panel
before any service measures.
- After failure, it is possible that one of the following error codes is being displayed:
- ”Er1” : Sensor circuit is open or the sensor is missing. Check the connection of the
temperature sensor.
- ”Er2” : The sensor is short-circuited. Check the connection of the temperature sensor.
- ”Er3” : Overheat switch has tripped/ break.
The temperature sensor offers an option to reset the overheat protection switch after it has
tripped. The reset requires a strong push.
NOTE! In case of malfunction, the sauna heater will be switched off.
Find out the cause of the error.
- The heater does not work or its function is abnormal.
- Check fuses of the heater.
- Make sure that the heaters main control switch is on. Check the switch’s operation by
pressing it few times on and off. The location of the switch is shown previously in this
manual.
- The Heaters control unit does not work or show anything. The protective fuse of the
heaters electronics may be broken. The fuse protects the heater from electrical failures
coming from the electricity network. The guarantee does not cover damages caused by
external malfunctions.
- The control unit’s wire may be damaged or it has a bad connection.
- The control units casing has been damaged for example if it is installed incorrectly.
Buttons does not work or are pressed down constantly. Open the lid and check the
functioning of the buttons.
- The sauna heater does not heat up properly
- Check fuses of the heater.
- Check if the heaters temperature is set on a low temperature on control unit.
- The sauna rooms air ventilation is too active or the outgoing air channel is located in
a wrong place (often too high).
- Check that the sauna stones are fitted properly. Too tightly piled stones does not allow air
flow between the stones. Pile the stones again to ensure good air flow.
- Make sure that all heating elements are heating up when the heater is turned on.
The Heating elements should glow after only a short moment after turning on the heater.
Do not touch the heating elements. If necessary, carefully remove a few sauna stones
from the heaters surface to see if the heating elements are glowing.
- Check the temperature sensor (should be ~10 kΩ / 25°C)
- The fuse from the houses electrical cabinet breaks down
- Make sure that the power supply’s cabel and fuses are matching with the heaters power
(see table 1.)
- The electric heating control function may be wrongly connected.
- Short circuit, for example if one of the heating elements has broken.
- The paneling of the sauna room near by the heater gets darker.
- Check the safety distances
- Check the piling of the sauna stones
- Check the location of the temperature sensor