Error code E7: Excessive temperature heat exchanger outdoor unit in heating mode
Is the outside temperature in heating mode
higher than 24°C?
YES
System protection, heating not possible
NO
Is the probe T3 correctly mounted on the
board?
NO
Correctly mount the probe on the circuit board
YES
Is the probe visibly damaged?
YES
Replace probe
NO
Are the probe resistance values OK? (See
Chapter 11.3 ‘Resistances of the
temperature probes’ on page 59
)
NO
Replace probe
YES
Replace the control board
Error code P0: Excessive temperature inverter module
Is the inverter board heavily soiled?
YES
Switch off system and clean inverter board of
coarse dirt
NO
Switch off system, wait 5 minutes and switch
system on again
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