353061809_1210
Fault messages
Ifafaultisindicatedbythesignalringofthecontrolunitashingred,afaultcodeisdisplayed
viatheWolfcontrolaccessorywitheBUScapabilitythatallowscauseandeffecttobeallocated
usingthefollowingtable.
Thislistoffault messagesisdesignedtoallow yourheatingcontractortotrace thefaultmore
easily.
No. Fault Cause Effect / Remedy
1 TBexcesstemperature Theexternaltemperatu-
relimiterhasshutdown
thesystem
BurnerOFF,pumpON
Requestaservice
4 Burnerfault Duringtheburnerstart
noamewasesta-
blished
BurnerOFF,pumpON
Presstheresetbuttonatthecom-
bustioncontrollerorthecontrolunit.
Ifthefaultcannotberemovedby
pressingtheresetbuttonseveral
times,requestaservice.
6 TWexcesstemperature Theboilerwatertem-
peraturehasexceeded
thelimitforTW(e.g.
95°C)
BurnerOFF,pumpON
Requestaservice
8 Fluegas/ventilationair
damperdoesnotmove
Fluegasdamper/ven-
tilationairdamperorits
feedbackfaulty
BurnerOFF,pumpON
12 Boilersensorfaulty Boilertemperature
sensororleadfaulty
BurnerOFF,pumpON
Requestaservice
14 Cylindersensorfaulty SensorfortheDHW
temperatureorforthe
leadfaulty
Forheatingmode:
Noeffect
Cylinderprimarypumpandheating
circuitpumpcycle
alternately
1hON,
1hOFF
Requestaservice
40 Faultmaximumthermo-
stat,systempressure
limiter
Thesystempressure
switchorthemaxi-
mumthermostathas
responded
BurnerOFF,pumpOFF
52 Max.cylinderheating
time exceeded
Cylinderheatingtakes
longerthanpermitted
Alternatingcylinderheatingand
centralheatingmode
15 Outsidetemperature
sensorfaulty
Sensorfortheoutside
temperaturefaulty
(shortcircuitorbreak)
Effectasperoutsidetemperature
belowfrostprotectionlimit
Requestaservice
79 Faultmulti-functionsen-
sor(centralsensor)
Centralsensorfaulty
(shortcircuitorbreak)
Controlunitatsetboilerwatertemp.
Noeffectontheboileroperation
Requestaservice
79 Faultmulti-functionsen-
sor(returnsensor)
Sensorforthereturn
sensorfaulty(short
circuitorbreak)
Noeffectontheboileroperation
bypasspumpcontinuestorun
Requestaservice
81 FaultEEPROM Internalequipmentfault Requestaservice
91 FaulteBUSparameter OneBUSaddresswas
allocatedmorethan
once
Requestaservice