Troubleshooting - MHTeam DH1-70 Manual De Instrucciones

9. Troubleshooting

PROBLEM
Motor does not start No power or low voltage
Motor runs, but the
heater does not ignite
and locks out after a
short time
Heater starts but
combustion is not
good
Heater stops during
operation
Heater stops during
operation
E1 displayed on the
screen
E2 displayed on the
screen
E3 displayed on the
screen
CAUSE
Faulty or damaged power cord
Faulty motor/capacitor
Lock-out of appliance due to previous
overheating
Empty fuel tank, dirty or wrong fuel
Ignition fault, dirty or incorrect electrods
position
Fuel filter clogged
Burner nozzle clogged
Fuel viscosity increased at low temperature
Insufficient airflow into combustion
chamber
Wrong fuel pressure
Leaks in fuel line
The room temperature set on room
thermostat has been reached
Flame failure
Bad combustion
Reduced airflow
Overheating
The photocell can't read the flame signal
Ambient temperature probe is broken or
not properly connected
Overheating thermostat is stopping the
heater
REMEDY
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
Remove wrong or dirty fuel
Fill the tank with clean Diesel or kerosene
Check and clean electrods*
Clean or replace fuel filter*
Clean nozzle blowing compressed air, replace if
necessary*
Mix Diesel with 10-20% kerosene
Check air inlet, fan*, motor* and air collar
position, adjust it if necessary.
Check fuel pressure, adjust it if needed*
Check and fix fuel leaks*
Normal operation
To start turn the temperature control knob
clockwise on a higher setting
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
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