Nibe F2040 - Low Room Temperature; High Room Temperature

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Incorrect settings in the NIBE indoor module.
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See the manual for the indoor module.
Low room temperature
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Closed thermostats in several rooms.
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Set the thermostats to max in as many rooms as possible.
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External switch for changing the room heating activated.
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Check any external switches.
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Incorrect settings in NIBE SMO or NIBE indoor module
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See the manual for the indoor module.
High room temperature
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External switch for changing the room heating activated.
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Check any external switches.
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Incorrect settings in NIBE SMO or NIBE indoor module
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See the manual for the indoor module.
F2040 is not operational
F2040 communicates all alarms to the indoor module.
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Ensure that the F2040 is connected to the power source.
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Check the indoor module. See section "Disturbances in comfort" in the
installation manual for the indoor module.
F2040 does not communicate
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Check that the addressing of F2040 is correct.
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Check that the communication cable has been connected.
19NIBE™ F2040Chapter 3 | Disturbances in comfort