Frico HDD36, Manual

Page: 15 / 28

EN
15
TROUBLESHOOTING
PROBLEM
RESET BUTTON (13)
CAUSE REMEDY
• Motor does not start, no
ignition
FU
NC
TI
O
N
LI
GH
T
• Off
SEL
F-DIA
G
NO
SIS
L
IG
HT
-
• 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
• Defective thermostat or other control • Replace control device
• Fan does not start or stops
during start-up or heating • Flashing
orange
-
• No electrical current
• Check mains
• Check proper positioning and functioning of
switch
• Check fuse
• Voltage below 175V
• Check supply voltage: heater will restart
automatically when voltage exceeds 190 V
• Voltage above 265V
• Check supply voltage: heater will restart
automatically when voltage is below 250 V
• Fan stops during start-up or
heating
• Steady red
• Flashing
orange
• Presence of flame before transformer
ignites • Clean and eliminate diesel residue in
combustion chamber
• Defective photocell • Replace photocell
• Flashing red
or flashing
red/green
• Defective electrical motor • Replace electrical motor
• Defective electrical motor bearings • Replace electrical motor bearings
• Burned out condenser • Replace condenser
• Defective electric ignitor
• Check connection of H.T. wires to electrodes
and transformer
•
Check electrodes setting (see scheme
“SETTING THE ELECTRODES”)
• Check electrodes for cleanliness
• Replace H.T. transformer
• Defective flame control box • Replace control box
• Defective photocell • Clean or replace photocell
• Insufficient or no fuel at burner
• Check state of motor-pump plastic coupling
• Check for any air infiltrations in the fuel line by
checking the air-tightness of the pipes and of the
filter seal.
• Clean or replace oil nozzle
• Defective solenoid
• Defective electric ignitor
• Check electrical connection
• Check thermostat LI
• Clean solenoid valve and replace it if necessary
• Flashing
orange
• Internal error of electronic device
• Reset the device and attempt at least two
starts. If the problem persists, replace the device
• Fan starts and flame lights,
generating fumes
• Steady green -
• Insufficient combustion air
• Make sure air inlet and outlet are free
• Check the position of the air regulation ring
• Clean burner disc
• Excess combustion air • Check the position of the air regulation ring
• Fuel contaminated or contains water
• Drain fuel in tank and load with clean fuel
• Clean oil filter
• Air leaks in fuel circuit
• Check the seals on the ducts and the diesel
filter
• Insufficient fuel at burner
• Check pump pressure
• Clean or replace fuel nozzle
• Excess fuel at burner
• Check pump pressure
• Replace nozzle
• Heater does not stop • Steady green - • Defective solenoid seal • Replace complete solenoid
If the heater is still not working properly, please contact your nearest authorized dealer.