Troubleshooting - Mi-T-M Corporation MH-0125-0MIH Manuel De L'opérateur

SYMPTOM
Heater does not start
Heater starts, flame
ignites but then heater
locks out
Heater starts, flame does
not ignite and then heater
locks out
Heater starts, but com-
bustion is not good
Heater stops as the air
pressure switch functions
16

TROUBLESHOOTING

PROBABLE CAUSE
No power
Faulty cable/connections
Burnt fuse
Room thermostat set too low
Room thermostat socket cap not
inserted
Heater in lock-out mode
Dirty or faulty flame sensor
Faulty burner control unit
Clogged nozzle
Flame sensor receives an external
light signal during ignition sequence
Faulty burner control unit
No fuel
Ignition fault, dirty or incorrectly
spaced electrodes
Dirty or blocked nozzle
Clogged filters
Leaks in fuel circuit
Oil pump provides low pressure
Insufficient combustion air
Insufficient ventilation air
The appliance has overheated
Faulty pressure switch
REMEDY
Check main distribution board and
power supply line
Check/have cable replaced by a quali-
fied electrician
Check and replace if required
Set room thermostat on a higher tem-
perature
Insert cap into the thermostat socket
Reset
Clean or replace
Contact service personnel
Clean or replace
Check for external lights (sun, lamps,
etc.)
Contact service personnel
Fill tank
Clean electrodes, contact service per-
sonnel if required
Clean or replace
Clean or replace
Check and eventually replace
Contact service personnel
Wrong air lock setting
Contact service personnel
See page 14
Contact service personnel
Kerosene Portable Heaters Manual