FAULT FINDING
If the heater is not working firstly check the following :
•
Check electrical supply
•
Check voltage is as 15%, -15%
•
Check gas supply is on
•
Check that the pressure is as stated in the TECHNICAL DATA
FAULT
CAUSE
SOLUTION
No operation
No electrical supply
Check main isolator.
Check supply cables
Check line fuses.
Check electrical connections
No spark ignition.
Flue venter working
No indication lights on
Differential pressure switch not
working
Check flue pipe and combustion
air pipe are clear.
Faulty differential pressure
switch
Replace differential pressure
switch
Poor connection at pressure
switch
Check air pipe to switch is
connected and not damaged
Check electrical connections
Check that pipes are
condensate free .
Faulty flue venter
Replace flue venter
Faulty control panel
Replace control panel
Faulty ignition electrode
Check ignition probe is not
cracked or damaged
Replace the ignition probe
No ignition
Flue venter working
No indication lights on
Room thermostat open
Check room thermostat.
Faulty flue venter
Replace flue venter
Faulty control panel
Replace control panel
