Troubleshooting - HeatStar HS250AG Guide Du Propriétaire Et Instructions D'installation

TROUBLESHOOTING

SYMPTOMS
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:
The heater does not work:
Lamp flashes
The heater does not work:
Lamps and
The heater does not work:
Lamp is steady on
Number of flashes of lamp (8)
CAUSE
No power supply
Switch (#9 FIG. 5) in wrong
position
Defective room thermostat
Gas pressure switch tripped
due to no gas or insufficient
pressure
Gas flow insufficient
Voltage control has tripped
due to insufficient electrical
supply (V < 95V)
Manual reset safety thermo-
stat has tripped due to exces-
are on.
sive overheating of combus-
tion chamber
No flame during ignition
cycle
2
Micro switch with blade
has tripped (electrical
contact remained open)
3
at start of ignition cycle
Parasite flame detected
in pre-wash phase dur-
4 ing ignition cycle
Micro switch with blade
has tripped (electrical
contact has opened)
5
during ignition cycle
Forced-Air Agricultural Construction Heater
• 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
• Check the electrical connections of the thermostat
• 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.
• The heater restarts automatically when sufficient voltage is restored
(V>95V)
• 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
• 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
LAUNCH THE SELF-DIAGNOSIS PROCEDURE
PUSH BUTTON (8) FOR 12 SECONDS AND RELEASE:
THE BUTTON LAMP FLASHES WITH 2 TO 7 FLASHES
• Check gas pressure at burner
• Check and clean gas filter
• Check that ionization probe is not discharging to ground
• Check ionization probe connection cables (they must not discharge to
ground)
• Check wire connection of pressure switch
• Check pressure switch and replace if necessary
• Check that there is no remaining gas in the combustion chamber
• Check that ionization probe is not discharging to ground
• Check ionization probe connection cables (they must not discharge to
ground)
• Check wire connection of pressure switch
• 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
10
Operating Instructions and Owner's Manual
SOLUTIONS