Glow-worm economy plus c 50 Instructions For Use, Installation & Servicing page 22

Electrical Fault Finding Continued.
Continued
NO
Turn ON thermostat;
Is there 240V between 7 and N ?
YES
Does pump run ?
YES
With thermostat set to MAX. allow appliance
temperature to reach max.
When appliance cuts out on temp. is there
240V between 7 and N ?
YES
With Remote Controls NOT Calling for Duty
does pump stop when the appliance has
cooled down ?
YES
CONTROLS IN ORDER
PERMANENT
LIVE BRN
L
240V
50 Hz
FUSED
AT 3A
RED LINK
(If no switch
control is used)
MAIN TERMINAL
STRIP
THERMOSTAT
TERMINALS
FUNCTIONAL FLOW
221462C
8 Fault Finding
BROWN
9
SL
SWITCH
CONTROL
(If used)
COMBINED
THERMOSTAT
AND PUMP
OVERRUN
Continued
NO
Faulty Cable (PURPLE) between thermostat
and terminal block, repair or renew.
NO
Faulty pump, inform customer
NO
Faulty thermostat, renew.
NO
YES
F.B.S.D.
RED
WHITE
PURPLE
3 6 9 8
7
22
MAIN TERMINAL STRIP
THERMOSTAT TERMINALS
Diagram 8.3 Continued
Solenoid
BRN
GAS
VALVE
L
7
TO
PUMP
BLUE
N
8
BLUE
N
BLUE
N
BLUE
Diagram 8.4