Nibe FIGHTER 1220, Installation And Maintenance Instructions Manual

Page: 44 / 60

Actions with operating disturbances
FIGHTER 1220
For the Installer
42
NOTE!
The
product’s serial number
should always be stated with all
correspondence with NIBE.
689_ _ _ _ _ _ _ _ _ _ _
Cause: Incorrect setting of Curve slope and/or
Offset heating curve
Action: Adjust the setting.
Cause: Large amounts of hot water were used.
Action: Wait until the water heater reheats.
Cause: Compressor and/or immersion heater does
not heat up.
Action: Check and replace blown circuit and
main fuses.
Cause: Too low start temperature setting on the
control system.
Action: Adjust the start temperature setting.
Cause: Possible earth circuit-breaker tripped.
Action: Reset the earth circuit-breaker, if the earth
circuit-breaker trips repeatedly, call an
electrician.
Cause: Compressor and electric module do not
heat.
Action: Check and replace blown circuit and main
fuses.
Cause: The compressor does not run because of a
too low set value on the control curve.
Action: Check and possibly raise the Offset heating
curve (knob on the front panel) or Curve
slope.
Cause: The compressor standstills due to the
internal overheating protection tripping.
Action: Automatic resetting after cooling for a few
hours.
Cause: Possible earth circuit-breaker tripped.
Action: Reset the earth circuit-breaker, if the earth
circuit-breaker trips repeatedly, call an
electrician.
Low hot water temperature
or no hot water
In the event of malfunction or operating disturbances first
check the points below:
High room temperature
Low room temperature
If the operating disturbance cannot be rectified by means of the above an installation
engineer should be called.