– Enter menu 1.2 and select "normal".
• External switch for changing the fan speed activated.
– Check any external switches.
HIGH OR DISTRACTING VENTILATION
• Filter blocked.
– Clean or replace filter (see page 24).
• The ventilation is not adjusted.
– Order ventilation adjustment.
• Fan speed in forced mode.
– Enter menu 1.2 and select "normal".
• External switch for changing the fan speed activated.
– Check any external switches.
THE COMPRESSOR DOES NOT START
• There is no heating requirement.
– The heat pump does not call on heating nor hot water.
– The heat pump defrosts.
• Compressor blocked due to the temperature conditions.
– Wait until the temperature is within the product’s working range.
• Minimum time between compressor starts has not been reached.
– Wait for at least 30 minutes and then check if the compressor has
started.
• Alarm tripped.
– Follow the display instructions.
NIBE F730Chapter 4 | Disturbances in comfort76
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