Actions with operating disturbances
For Home Owners
10
To reset a tripped pressure switch, press the button on
the top of it; see diagram. The pressostats are located
behind the upper service cover.
High pressure pressostat
Low pressure pressostat
Normally this switch resets automati-
cally so it does not have a reset button.
Resetting pressostats
The compressor and electronic controls of the heat
pump are off.
The numerical display is off, FIGHTER 600 P does not
produce hot water.
The fan is operational and the immersion heater is
controlled by a separate thermostat. When floor heat-
ing is installed the cut-out temperature on the thermo-
stat should be lowered to prevent damage to the floor.
The thermostat should be reset once the malfunction
has been rectified.
FIGHTER 600P
Switch position
If the operating disturbance cannot be rectified by means of the above an installation
engineer should be called. If necessary set the switch to .
NOTE! The hot water capacity can be increased for
24 hours by pressing in button (18).
■ Large amounts of hot water were used.
■ Circuit or main MCB tripped.
■ Possible earth circuit-breaker tripped.
■ Switch (8) set to “0”.
■ MCB (7) tripped. See the section Service - Reset-
ting the miniature circuit breakers.
■ Closed or throttled filler valve (46) on the water
heater.
■ The reversing valve (43) is set to manual mode.
Low temperature or a lack of
hot water
■ Circuit or main MCB tripped.
■ Possible earth circuit-breaker tripped.
■ MCB (7) tripped. See the section Service - Reset-
ting the miniature circuit breakers.
■ Tripped temperature limiter (6). (Contact service)
■ Automatic heating control system settings not cor-
rect (40).
■ Circulation pump (16) stopped. See the section
Dealing with malfunctions - Help starting the circu-
lation pump.
■ Air in boiler or system.
■ Close valve (44) and/or (50) in the radiator circuit.
■ Initial pressure in expansion vessel too low. This is
indicated by low pressure on the pressure gauge
(42). Contact the installer.
■ Defrost mode, lamp (31) is lit.
• Filter (63) clogged (replace if necessary).
• Exhaust air device blocked or throttled down too
much.
■ Circuit or main MCB tripped.
■ Possible earth circuit-breaker tripped.
■ MCB (7) tripped. See the section Service - Reset-
ting the miniature circuit breakers.
Low room temperature
Low or a lack of ventilation
In the event of malfunction or operating disturbances first
check the points below:
■ Automatic heating control system settings not cor-
rect.
■ The reversing valve (43) is set to manual mode.
High room temperature
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