9
9. Defects and repair
Water flow too low
–
blocked water filter (clean it out according to chapter 7)
Heater does not start
–
heater’s inlet exchanged with outlet
–
water flow suppressed too much
–
blocked water filter (clean it out according to chapter 7).
–
water pressure in system too low
–
lack of power because of blown fuse.
Heater does not warm up water but control lamp lights
–
voltage too low (power installation overloaded)
–
temperature of entering water too low
–
water flow too high (adjust water flow according to chapter 6)
Water temperature on heater exit too low
–
water flow too high (adjust water flow according to chapter 6)
–
temperature of entering water too low
–
high voltage drop (see item 1, table 2)
Fig. 7
5. Install filter into heater intake with basket bottom down (Fig. 9)
6. Connect hose to the heater.
7. Open water valve and check tightness.
8. Before power switching on check electronic system is not splashed with water – if so,
blow up with air to remove water from electronic circuit board.
9. Adjust according to chapter 6.
Caution!
Every single time after re-installation of the housing it is necessary to
check carefully whether blue and red gaskets on pipe ends fit close to
the heater’s housing.
