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Troubleshooting
39 Troubleshooting
39.1 Generalinformation
Never remove, bypass or otherwise disable any safety or monitoring equipment. Only operate the heat pump in perfect
technical condition. Any faults or damage which impact or might impact upon safety must be remedied immediately
by a qualified contractor. Replace faulty components and equipment only with original WOLF spare parts.
Faults are shown in plain text on the display of the control accessory – AM display module or BM-2 programming unit
– and correspond to the messages listed in the following tables.
A fault symbol (triangle with exclamation mark) on the display indicates an active fault message. A padlock symbol
indicates that the current fault message has caused a lockout of the heat pump. The display also shows how long the
message has been active.
Faultsmustonlyberectifiedbyqualifiedpersonnel.Ifafaultmessageisacknowledgedseveral
timeswithoutthecauseoftheproblembeingrepaired,thiscanleadtocomponentorsystem
damage.
Thecontrolunitautomaticallyacknowledgesfaultssuchasfaultytemperaturesensorsorother
sensorsifthepartconcernedhasbeenreplacedandplausibletestvalueshavebeensupplied.
39.2 FaultmessageonAM
Message
Fault
Boiler sensor faulty
Fault for
xxx min.
12
39.3 FaultmessageonBM-2
Acknowledge key
Message
Heatingappliance1
Fault12
04.10.16 12:03
Boilersensorfaulty
Acknowledge here
14:12 20.01.2013
ISM
PV
39.4 Procedureinthecaseoffaults
− Read fault message
− Determine cause of fault using the table below and remedy it
− Clear fault with "Fault reset" button or in the contractor menu under "Acknowledge fault".
− Check that the system is functioning correctly