MHTeam DH1-20, Instruction Manual

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9. Troubleshooting
PROBLEM
CAUSE REMEDY
Motor does not
start
No power or low voltage
Faulty or damaged power cord
Faulty motor/capacitor
Lock-out of appliance due to previous
overheating
Check power line and voltage*
Check fuse and replace if necessary*
Check and replace if needed*
Check and if necessary replace*
Detect the cause of overheating
Shut the appliance down
Check air inlet and outlet
Wait some minutes and restart the
appliance
Motor runs, but the
heater does not
ignite and locks
out after a short
time
Empty fuel tank, dirty or wrong fuel
Remove wrong or dirty fuel
Fill the tank with clean Diesel or kerosene
Fuel filter clogged Clean or replace fuel filter*
Air leaks in oil line Check hoses, tighten connections, if
necessary replace*
Burner nozzle clogged Clean nozzle blowing compressed air,
replace if necessary*
Fuel viscosity increased at low
temperature Mix Diesel with 10-20% kerosene
Flames come out
of front disc
Insufficient airflow into combustion
chamber
Compressor pressure too high Check air inlet, fan*, motor*
Check air pressure, adjust if needed*
Heater stops
during operation
The room temperature set on room
thermostat has been reached Normal operation
To start turn the temperature control knob
clockwise on a higher setting
Heater stops
during operation
Flame failure
Bad combustion
Reduced airflow
Overheating
Check and remove the cause(s) of
malfunction
To reset, turn On/Off switch to 0 and then
to I
Call technical service if the problem
persists
E1 displayed on
the screen
E2 displayed on
the screen
E3 displayed on
the screen The photocell can’t read the flame
signal
Ambient temperature probe is broken
or not properly connected
Overheating thermostat is stopping the
heater
Check and remove the cause(s) of
malfunction
To reset, turn On/Off switch to 0 and then
to I
Call technical service if the problem
persists
* To be done by authorized service