Troubleshooting - MHTeam DH2-I-20C 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
Flames come out of
flue outlet
Heater stops during
operation
Heater stops during
operation
E1 displayed on the
screen
E2 displayed on the
screen
E3 displayed on the
screen
* To be done by authorized service
CAUSE
Faulty or damaged power cord
Faulty motor/capacitor
Lock-out of appliance due to previous
overheating
The temperature probe is faulted
or the connector for temperature probe is
loose
Empty fuel tank, dirty or wrong fuel
Fuel filter clogged
Air leaks in oil line
Burner nozzle clogged
Fuel viscosity increased at low temperature
Insufficient airflow into combustion
chamber
Compressor pressure too high
The room temperature set on room
thermostat has been reached
Flame failure
Bad combustion
Reduced airflow
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
Check and replace if the temperature probe if
needed
Check and replace the PCB if needed
Remove wrong or dirty fuel
Fill the tank with clean Diesel or kerosene
Clean or replace fuel filter*
Check hoses, tighten connections, if necessary
replace*
Clean nozzle blowing compressed air, replace if
necessary*
Mix Diesel with 10-20% kerosene
Check air inlet, fan*, motor*
Check air pressure, adjust if needed*
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