EN
13
OBSERVED FAULTS, CAUSES AND REMEDIES
OBSERVED FAULT
CAUSE
REMEDY
• Check mains
• Check proper positioning and functioning of
switch
• No electrical current
• Check fuse
• Wrong setting of room thermostat or other control
• Check correct setting of heater control.
If thermostat, make sure selected temperature is
higher than room temperature
• Thermostat or other control defective
• Replace control device
• Electrical motor defective
• Replace electrical motor
• Electrical motor bearings defective
• Replace electrical motor bearings
• Motor does not start, no
ignition
• Burned out condenser
• Replace condenser
• Check connection of H.T. Ieads to electrodes and
transformer
• Check electrodes setting (see scheme
“REGULATION OF ELECTRODES”)
• Check electrodes for cleanliness
• Electric ignitor defective
• Replace H.T. transformer
• Flame control box defective
• Replace control box
• Photocell defective
• Clean or replace photocell
• Check state of motor-pump plastic coupling
• Check fuel line system including fuel filter for
possible leaks
• Not enough or no fuel at all at burner
• Clean or replace oil nozzle
• Check electrical connection
• Check thermostat LI
• Motor starts, no ignition or
cuts out
• Solenoid defective
• Clean or replace solenoid
• Make sure air inlet and outlet are free
• Check setting of combustion air flap
• Not enough combustion air
• Clean burner disc
• Too much combustion air
• Check setting of combustion air flap
• Drain fuel in tank with clean fuel
• Fuel contaminated or contains water
• Clean oil filter
• Air leaks in fuel circuit
• Check the seals on the ducts and the diesel filter
• Check pump pressure
• Not enough fuel at burner
• Clean or replace fuel nozzle
• Check pump pressure
• Motor starts, heater emits
smoke
• Too much fuel at burner
• Replace nozzle
• Heater does not stop
• Solenoid defective
• Replace solenoid coil or complete solenoid
If heater still not working properly, please revert to nearest authorized dealer.
