9
F205P
For Home Owners
Dealing with malfunctions
In all correspondence with NIBE
state the serial number
______________
Note!
Low temperature or a lack of hot water
• Large amounts of hot water were used.
• Circuit or main MCB tripped.
• Possible earth circuit-breaker tripped.
• Wrong mode chosen on power switch (8).
• Temperature limiter (6) tripped. Contact service.
• Thermostat (3) for immersion heater set too low.
High room temperature
• Clock thermostat setting not correct
Cleaning the fan
The fan needs to be cleaned, if it is noisy. Call your installa-
tion engineer.
Switch position 3
When the switch is set to “3”, the compressor is not op-
erational. The fan and the immersion heater are operation-
al. Normally the immersion heater lamp is lit in mode “3”,
when the immersion heater is operational.
A possible fault on the printed circuit card can cause the
disappearance of the number display. However, the immer-
sion heater is still operational, if the thermostat has not
cut-out the immersion heater.
Low or a lack of ventilation
• Defrost mode - lamp flashing - see chapter “Lamp
indications”.
• Filter (63) clogged (possible replace).
• Exhaust air device blocked or throttled down too
much.
• Circuit or main MCB tripped.
• RCD (if fitted) tripped.
• Setting of the manual fan switch (if mounted) is incor-
rect.
Low room temperature
Dealing with malfunctions
In the event of malfunction or operating disturbances first check the points below:
Art.nr. 611830
( )
( )
( )
20 100
40 80
60
ϒC
0 120
T
G
2
1
bar
3
04
T
G
Art.nr. 611830
20 100
40 80
60
ϒC
0 120
T
G
2
1
bar
3
04
T
G
Art.nr. 611830
20 100
40 80
60
ϒC
0 120
T
G
2
1
bar
3
04
T
G
LEK
2
3
1
20 100
40 80
60
°C
0 120
T
G
• Circuit or main MCB tripped.
• Possible earth circuit-breaker tripped.
• Tripped temperature limiter (6). Contact service
• Incorrectly set value on the room thermostat.
• Circulation pump (16) stopped. See the section
“Dealing with malfunctions” – “Starting the pump”.
• Air in the boiler or system.
• Close valves (44) and (50) in the radiator circuits.
• Too low pre-pressure in the expansion vessel, contact
the installer.