Toyotomi Oil Miser OM-180 Operation & Maintenance Instructions Manual page 15

PROBLEM
POWER LAMP FAILS
1
TO TURN ON
WARNING LAMP
LIGHTS AFTER
2
TURNING ON.
BLOWER MOTOR
OPERATES, NO
IGNITION
3
EXTINGUISHED
AFTER IGNITION
4
NOISE FROM FUEL
5
PUMP
NOISY COMBUS-
TION
6
HOT WATER TEMP
7
TOO LOW
SOOT ACCUMULA-
TION
8
FUEL LEAKAGE
9
FROM FUEL PIPE
WATER LEAKAGE
10
OPERATION LAMP
BLINKS
11
CAUSE
Disconnected power supply cord
Flame sensor malfunction
Light on Flame Sensor
Thermistor malfunction
Abnormal location and adjust-
ment of electrode
Igniter malfunction.
Abnormal lowering of electrical
voltage
Out of fuel
Air pocket in fuel line
Clogged fuel strainer
Bi-metal switch activated
Air pressure switch open
Stained light-intercepting surface
of flame sensor
Flame sensor dirty
Flame sensor malfunction
Fuel restriction
Combustion air restriction
Fuel nozzle failure
Bi-metal switch activated
High limit thermistor activated
Air lock in fuel line
Clogged intake line and pump
Fuel flow too much
Fuel flow too little
Fuel nozzle failure
Improper installation of flue pipe
Thermistor malfunction
Hot water supply beyond capacity
Dusty blower motor fan
Improper installation of flue pipe
Fuel flow too much
Fuel nozzle failure
Loose connection of fuel pipes
Water leakage from heat
exchanger (Heat exchanger
malfunction)
Gasket malfunction
The short-circuit terminal of timer
connection "L" on the
circuit board is disconnected.
Or the unit is under stand-by
state by automatic operation
of the timer.
SOLUTION
Connect power supply cord.
Consult your dealer.
Consult your dealer.
Consult your dealer.
Consult your dealer.
Consult your dealer.
Contact electricians.
Check fuel gauge on fuel tank; refuel.
Remove air pocket.
Clean strainer.
Consult your dealer.
Consult your dealer.
Replace it.
Consult your dealer.
Clean flame sensor.
Replace it.
Remove air.
Consult your dealer.
Replace it.
Consult your dealer.
Consult your dealer.
Remove air.
Consult your dealer.
Consult your dealer.
Consult your dealer.
Replace it.
Re-install properly.
Consult your dealer.
Close hot water faucet partially.
Consult your dealer.
Re-install properly.
Consult your dealer.
Replace it.
Consult your dealer.
Consult your dealer.
Replace it.
Connecr the short-circuit terminal correctly.
Normal.
14