Installation Manual

Troubleshooting
44│Page
‐FAULTANALYSISOFERRORCODES‐
IfthereisaproblemwiththeinstallationortheT‐H2‐DV/T‐H2‐OS,itwilldisplayanumerical
errorcodeonthe7‐segLEDofthecomputerboardortheTM‐RE30(ifinstalled)to
communicatethesourceoftheproblem.

Error
Code
Malfunctiondescription Diagnosis
031
Incorrectdipswitchsettings
Check the dipswitch
settingsonPCB
101
Warningforthe“991”errorcode
CallTAKAGI
TechnicalDept.
at1‐888‐882‐5244
111
Ignitionfailure
Checkgassupply
121
Lossofflame
311
Outputthermistorfailure
CallTAKAGI
TechnicalDept.
at1‐888‐882‐5244
321
Inletthermistorfailure
331
Mixingthermistorfailure
341
Exhaustthermistorfailure(OnlyT‐H2‐DV)
391
Ai
r
‐fuelRatioRodFailure
441
FlowSensorFailure(OnlyEasy‐Linksystem)
510
AbnormalMainGasValve
551
AbnormalGasSolenoidValve
611
FanMotorFault
621
ExhaustfanmotorFault(OnlyT‐H2‐DV)
631
AbnormalExternalPump
651
WaterControlValveFault(FlowAdjustmentfunction)
(OnlyEasy‐Linksystem)
661
WaterControlValveFault(Bypassvalvefunction)
701
ComputerboardFault
711
GasSolenoidValvedrivecircuitfailure
721
FalseFlameDetection
741
Miscommunication between T‐H2‐DV/T‐H2‐OS and
TM‐RE30
761
MiscommunicationinEasy‐Link
941
Abnormalexhausttemperature (OnlyT‐H2‐DV)
991
Imperfectcombustion