102
Problem
Indicating lights “on” even
switches are operated
Circulating pump doesnŮ t
operate
Fuel pump operates, but fuel
is not injected
Fuel injected, but doesnŮt
ignite
Motor doesnŮt operate, even
the switches are turned “on”
Cause
1. Cut of lamp
2. Fuse melted(F1 or F2)
1. Fuse melted(F1 or F2)
2. Water frozen
3. Impeller restricted by contamination in
water flow line
1. Lack of fuel
2. Fuel filter blocked or frozen by water
3. Leakage of fuel piping
4. Solenoid valve under quality
1. Electrode under quality
2. Ignition unit under quality
3. Lack or excess of combustion air
1. Fuse melted(F1)
2. Fault or uncorrect wiring of electricals
Maintenance
1. Change
2. Change
1. Change
2. Heating or anti–freeze injection
3. Clean
1. Refuel
2. Clean or change
3. Tightening
4. Change or overhaul repair
1. Change or correct the position
2. Change
3. Clean air intake and exhaust tube, adjust
damper.
1. Change
2. Inspection and repair
Trouble shooting
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