LOW SYSTEM PRESSURE
• Not enough water in the climate system.
– Fill the climate system with water and check for leaks. In event of
repeated filling, contact the installer.
THE AIR/WATER HEAT PUMP’S COMPRESSOR DOES NOT
START
• There is no heating requirement.
– SMO 40 does not call on heating or hot water.
• 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.
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 ”add. heat only”. This means that additional heating only is used
to heat the house.
SET THE INSTALLATION TO ADDITIONAL HEAT MODE
1.
Go to menu 4.2 op. mode.
2.
Mark ”add. heat only” using the control knob and then press the OK
button.
3.
Return to the main menus by pressing the Back button.
Caution
When commissioning without NIBE air/water heat pump, the
"communication error" alarm may appear in the display.
NIBE SMO 40Chapter 4 | Disturbances in comfort82
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