Title: Oso-Nano-VV-Bereder.pdf
Heating element is defective.Press the ‘RESET’ button on the safety ther- mostat; see ‘User guide’.Replace heating element. Contact auth. installer.Leak in hot water pipeCheck the hot water pipes and taps in the house for leaks. If a leak is detected: Con- tact auth. installer.Raise the temperature on the thermostat to the maximum; see ‘User guide’.Not enough hot waterHigh consumption in the home.Switch to a larger OSO water heater. Con- tact auth. installer.Not high enough tem- peratureThe thermostat is set for low tempera- tures.Change from cold to hot water in taps.Raise the temperature on the thermostat to the maximum; see ‘User guide’.Contact auth. installer.Fuse/earth breaker trips repeatedlyPossible fault in the heater’s electrical system.Verify as follows: a) cut the electric supply, b) unscrew the cover, c) visually check the junction box for any problems. If so, con- tact auth. installer to check. Fit the cover.Knocking in the pipes when the hot tap is closed