E1 displayed on
the screen
Faulty or damaged power cord
Check and replace if needed
Faulty motor/capacitor
Check and if necessary replace
Lock-out of appliance due to previous
overheating
Detect the cause of overheating
Shut the appliance down
Check air inlet and outlet
Wait some minutes and restart the
appliance
E2 displayed on
the screen
The temperature probe is faulted or the
connector for temperature probe is
loosen
Check and replace if the temperature
probe if needed
Check and replace the PCB if needed
Motor runs, but the
heater does not
ignite and locks
out after a short
time
E1 displayed on
the screen
Empty fuel tank, dirty or wrong fuel
Remove wrong or dirty fuel
Fill the tank with clean Diesel or kerosene
Ignition fault, dirty or incorrect
electrods position
Check and clean electrods
Fuel filter clogged
Clean or replace fuel filter
Burner nozzle clogged
Clean nozzle blowing compressed air,
replace if necessary
Fuel viscosity increased at low
temperature
Mix Diesel with 10-20% kerosene
Heater starts but
combustion is not
good
Insufficient airflow into combustion
chamber
Check air inlet, fan, motor and air collar
position, adjust it if necessary.
Wrong fuel pressure
Check fuel pressure, adjust it if needed
Leaks in fuel line
Check and fix fuel leaks
Heater stops
during operation
Ambient
temperature
displayed on the
screen
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
E1 displayed on
the screen
Flame failure
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
Bad combustion
Reduced airflow
Overheating
LC displayed on
the screen
Failed 3 times for igniting will lock the
PCB and stop working
With electricity on, it will be unlocked afte
r 3 times power switch to ON in 10 secon
ds;
M1.0.WD340.EN
