BIEMMEDUE BH 50 GAS Manual De Instrucciones página 36

FAULT
• The heater does not start:
lamp is off
• The heater does not start:
lamp is on
• The heater works erratically and the burner
goes on and off alternately:
lamp goes on and off
• The heater does not work:
lamp is on
• The heater does not work:
lamp flashes
• The heater does not work:
lamp is steady on
Number of flashes of lamp (d)
• Fan is noisy or vibrates
• Insufficient heating
L-L 195.04-BM
CAUSE
• No power supply
• Switch (a) in wrong position
• Defective room thermostat
• Gas pressure switch tripped due to no gas or
insufficient pressure
• Gas flow
• Burner thermostat has tripped due to
overheating
• Manual reset safety thermostat has tripped due
to excessive overheating of combustion
chamber
• Voltage control has tripped due to insufficient
electrical supply (V < 190V)
2 • No flame during ignition cycle
• Air pressure switch has tripped (electrical
3
contact remained open) at start of ignition cycle
• Parasite flame detected in pre-wash phase
4
during ignition cycle
• Air pressure switch has tripped (electrical
5
contact has opened) during ignition cycle
• Air pressure switch has tripped (electrical
6
contact has opened) during work cycle
7 • No flame during work cycle
• Dirt on fan blades
• Poor air circulation
• Insufficient burner capacity
EN
• Check functioning and position of switch
• Check the mains
• Check power connections
• Check the fuse
• Select correct position
• Check that thermostat connection plug is inserted
• Verificare il collegamento elettrico del termostato
• Check thermostat setting and correct it
• Check functioning of thermostat
• Check that gas feed pipe has been bled
• Check gas feed pressure
• Check and clean gas filter.
• Clean and recalibrate the burner.
• Check correct position of air distribution channels and opening
of any flaps, openings, etc.
• Remove any foreign bodies trapped in the air ducts or ventilation
grilles
• Check that the fan motor starts correctly and is not obstructed
• Check that the fan motor is not burned out or that the motor
condenser is not broken
• Check burner calibration
• Check the chimney and correct discharge of fumes
• The heater restarts automatically when sufficient voltage is
restored (V>190V)
• Check the power line if the heater starts and stops several times
• Check the power line if the heater does not start and remains in
safety stop
LAUNCH THE SELF-DIAGNOSIS PROCEDURE
PUSH BUTTON (D) FOR 7 SECONDS AND RELEASE:
THE BUTTON LAMP FLASHES WITH 2 TO 7 FLASHES
• Check gas pressure at burner
• Check and clean gas filter
• Check that ionisation probe is not discharging to earth
• Check ionisation probe connection cables (they must not
discharge to earth)
• Check connection of pressure switch pipes
• Check pressure switch and replace if necessary
• Check that there are no gas pockets in the combustion chamber
• Check that ionisation probe is not discharging to earth
• Check ionisation probe connection cables (they must not
discharge to earth)
• Check connection of pressure switch pipes
• Check that burner motor and fan are not blocked or broken;
replace if necessary
• Check that smoke exhaust chimney is not partially or totally
obstructed
• Check pressure switch and replace if necessary
• Check connection of pressure switch pipes
• Check that burner motor and fan are not blocked or broken;
replace if necessary
• Check that smoke exhaust chimney is not partially or totally
obstructed
• Check pressure switch and replace if necessary
• Check gas pressure at burner
• Check and clean gas filter
• Check that ionisation probe is not discharging to earth
• Check ionisation probe connection cables (they must not
discharge to earth)
• Remove dirt
• Eliminate all obstacles to air flow
• Contact Customer Service
REMEDY
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