309
TROUBLESHOOTING
IGN Igniter EMC-PCB EMC PCB L Reactor
4PV Reversing valve
KR-PCB
Cold district PCB
(unit with drain heater kit only)
ELB Eelectric leakage breaker
WT Engine coolant temperature sensor IF-PCB Communication control PCB
WB(G2) Engine speed sensor (G2) DCBL-PCB DCBL PCB Heat exchanger compartment
WB(Ne) Engine speed sensor (Ne) C Electrolysis condenser FM1 Fan motor 1
STM Throttle valve ENK-PCB (Not use) FM2 Fan motor 2
STR Starter DB Diode bridge THO Outside air temperature sensor
Control box RY1 Starter relay Fuel box
MAIN-PCB Main PCB TR1 Transformer 1 GV1 Electromagnetic gas valve 1
PWR-PCB Power supply PCB TR2 Transformer 2 GV2 Electromagnetic gas valve 2
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Heat exchanger
compartment
Unit with deodorant kit only
Unit with drain heater
kit only
NOTE) The status of contact point shown in the diagram is when the system is shut down.