Glow-worm 56/3 Back Boiler - Manual (Page 23)

23 221724B
8 Servicing
Diagram 8.11
7195
FLUEWAY
BAFFLES
HEAT
EXCHANGER
BACK
FLUEWAY
Diagram 8.10
6835
SECURING
SCREW (3)
DRAUGHT
DIVERTER
ASSEMBLY
DRAUGHT
DIVERTER
PLATE
SECURING
SCREW (2)
SPIGOT DUCT
MIDDLE
FLUEWAY
9 Fault Finding
9.1 Electrical
Carry out the preliminary electrical system checks as
contained in a multimeter instruction book.
Refer to electrical fault finding chart, diagram 9.1 and
functional flow wiring diagram 9.1
On completion of the fault finding task which has required the
breaking and remaking of electrical connections, the checks
for earth continuity, short circuit, polarity and resistance to
earth must be repeated.
9.2 Thermocouple
To test the thermocouple, a meter with a range of
0 - 30mV is required together with a thermocouple interrupter
test unit.
9.3 Electrical Fault Finding Back Boiler
Refer to diagram 9.1.
9.4 Flue Blockage Safety Device and Ignition
Fault Finding
To check the safety device and ignition, refer to fault finding
chart, diagram 9.1.
Diagram 9.1 FUNCTIONAL FLOW AND ELECTRICAL FAULT-FINDING BACK BOILER
7298