Low Room Temperature; High Room Temperature; Low Hot Water Temperature Or No Hot Water - Nibe FIGHTER 1120 Installation And Maintenance Instructions Manual

In the event of malfunction or operating disturbances first

Low room temperature

Cause: Compressor and immersion heater do not
heat up.
Action: Check and replace any blown circuit and
main fuses.
Cause: The compressor does not start because of a
too low value set on the heating curve.
Action Check and possibly raise the "Heating curve
offset" (knob on the front panel) or "Curve
slope".
Cause: The compressor standstills due to the inter-
nal 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 electri-
cian.

High room temperature

Cause: Incorrect setting of "Curve slope" and/or
"Heating curve offset".
Action: Adjust the setting.
If the operating disturbance cannot be rectified by means of the above,
Dealing with malfunctions
check the points below:
an installation engineer should be called.
Low hot water temperature or
Cause: Large amount of hot water drawn off.
Action: Wait until the water heater reheats.
Cause: Compressor and/or immersion heater does
not heat up.
Action: Check and replace any blown circuit and
main fuses.
Cause: Too low start temperature setting on the
control system.
Action: Adjust the start temperature setting in menu
1.4.
Cause: Possible earth circuit-breaker tripped.
Action: Reset the earth circuit-breaker, if the earth
circuit-breaker trips repeatedly, call an elec-
trician.
As FIGHTER 1120 can be connected
to a large number of external units
even these should be checked.
FIGHTER 1120
no hot water
NOTE!
61