The air/water heat pump’s compressor does
not start
• There is no heating or cooling demand, nor hot water
demand or pool demand.
– SMO S40 does not call on heating, cooling, hot wa-
ter or pool.
• Compressor blocked due to the temperature condi-
tions.
– 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.
• "Additional heat only" is selected.
– Switch to "Auto" or "Manual" in menu 4.1 "Operating
mode".
• The heat pump can be missing in the docking.
– Select the heat pumps that must be included in the
installation in menu 7.3.4 "Docking".
Add. heat only
If you are unsuccessful in rectifying the fault and are
unable to heat the house, you can, whilst waiting for
assistance, continue running the heat pump in emer-
gency mode or "Additional heat only" mode. "Additional
heat only" mode means that additional heat only is used
to heat the house.
SET THE INSTALLATION TO ADDITIONAL
HEAT MODE
1.
Go to menu 4.1 "Operating mode".
2.
Select "Additional heat only".
EMERGENCY MODE
You can activate the emergency mode both when
SMO S40 is running and when it is switched off.
To activate when SMO S40 is running: press and hold
the on/off button (SF1) for 2 seconds and select "emer-
gency mode" from the shutdown menu.
To activate when SMO S40 is switched off: press and
hold the on/off button (SF1) for 5 seconds. (Deactivate
the emergency mode by pressing once.)
65Chapter 11 | Disturbances in comfortNIBE SMO S40
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