Arcotherm EC 85 - Observed Faults, Causes, and Remedies

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OBSERVED FAULTS, CAUSES AND REMEDIES
OBSERVED FAULT CAUSE REMEDY
• Check mains (should be 230 V – 1~ – 50 Hz)
• Check proper positioning and functioning of
• switch
• 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
• 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
• 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
• Clean or replace oil nozzle
• Check electrical connection
• Check thermostat LI
• Clean or replace solenoid
• Make sure air inlet and outlet are free
• Check setting of combustion air flap
• Clean burner disc
• Too much combustion air • Check setting of combustion air flap
• Drain fuel in tank with clean fuel
• Clean oil filter
• Air leaks in fuel circuit • Check the seals on the ducts and the diesel filter
• Check pump pressure
• Clean or replace fuel nozzle
• Check pump pressure
• 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.
• Not enough combustion air
• Fuel contaminated or contains water
• Not enough fuel at burner
• Too much fuel at burner
• Motor starts, heater emits smoke
• No electrical current
• Motor does not start, no ignition
• Electric ignitor defective
• Not enough or no fuel at all at burner
• Motor starts, no ignition or cuts out
• Solenoid defective
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