KDB-GOM
Series
- 60 -
2 - 3 # 03 Failure Ignition failure
No Symptoms and causes Solutions Reference
- Check the connection of the flame sensor on
the electrode.
- Reconnect the flame sensor on the electrode.
- If problem persists, replace electrode assembly.
<Fig. 1>
2 Combustion is working and failure code
# 03 is displayed.
- Check for power supply (AC 200V) from the
power transformer to the flame sensor. If not,
replace the power transformer.
※
Voltage Supply Chart
<Fig. 2>
<Fig. 1>
<Fig. 2>
Power Transformer
Check AC 200V
Electrode Assembly
Check flame rod
Wire connection
No Voltage Check Points
3 200V Flame rod
1, 5 20V Controller circuitry
4, 7 12V Water level detection
2, 6 40V
Modulating gas control
Solenoid valve
8, 9 220V
Modulating gas control
valve ON/OFF
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