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Electrical Wiring Diagram
AC220V
AC250V/5A
Gray2P
Black2P
Green
Green
Yellow
Yellow
Black
Black
White
Black
Green
Overheat
Sensor
Inversion
Switch
Flow Meter
Temperature
Sensor
Red
Green
Black
Yellow
Black
Brown
Phototube
Electronic pump
Ignition Trans
Fan Motor
Burner
AC220V
AC250V/5A
Gray2P
Black2P
Green
Green
Yellow
Yellow
Black
Black
White
Black
Green
Overheat
Sensor
Inversion
Switch
Flow Meter
Temperature
Sensor
Red
Green
Black
Yellow
Black
Brown
Phototube
Electronic pump
Ignition Trans
Fan Motor
Burner
12
▶ If following problem occur please carry out remedy referring the table below.
Request service if problem continues.
Symptom
Possible reason/Check
Remedy
All lamps are off on the
operation panel
- Power interruption
- Unplugging
- Blown fuse
- Connect Power
- Replace fuse
Repeat on and off
- Time set is selected
(check the lamp)
- Select Temp set
Heater is operating but
Fuel gauge lamp is off
- Fuel gauge wire is disconnected
- Connect the wire
Burning smells during the
initial operation
- Foreign substances are burnt
inside the gasket
- No action is needed. It will
disappear after 1 ~ 2 hours
Severe fuel smell
- Smells when turning off the heater
right after starting the heater
- Dropping fuel when refueling
- Keep operation more than
15 minutes
- Remove the dropped fuel
Room temperature on dis-
play is higher than normal
- Check location of temperature
sensor on rear of the heater
(It may occur if the sensor is
installed inside)
- Locate the sensor at the
correct position.
Items to check before requesting service