Troubleshooting
If the malfunction does not appear in the display or NIBE FLM is not
connected to a compatible heat pump, the following tips can be used:
BASIC ACTIONS
Start by checking the following items:
• The switch's position.
• That the heat pump is running or that the supply cable to NIBE FLM
is connected.
• Group and main fuses of the accommodation.
• The property's earth circuit breaker.
LOW OR A LACK OF VENTILATION
• Filter blocked.
– Clean or replace filter (see page 10).
• The ventilation is not adjusted.
– Order ventilation adjustment.
• Exhaust air device blocked or throttled down too much.
– Check and clean the exhaust air devices (see page 10).
• Fan speed in reduced mode.
– If NIBE FLM is connected to a compatible heat pump: Enter menu
1.2 and select “normal”.
If NIBE FLM is connected to another heat pump: Contact your in-
staller!
• External switch for changing the fan speed activated.
– Check any external switches.
HIGH OR DISTRACTING VENTILATION
• Filter blocked.
– Clean or replace filter (see page 10).
• The ventilation is not adjusted.
– Order ventilation adjustment.
15Chapter 3 | Disturbances in comfortNIBE FLM
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