Glow-worm Swift flow 75e Instructions For Use Installation And Servicing page 32

NO
D
Faulty main
PCB.
Faulty CVl
ignition unit.
Faulty
transformer,
replace.
Faulty CVI
ignition
unit, replace.
221422A
Supplied By www.heating spares.co Tel. 0161 620 6677
3 Fault Finding
Is there between
NO
15 - 30 V DC on the two
greys on CN1 main PCB ?
Is there between
15 - 30 V DC on the
NO
Modureg coil ?
Is there 24V ac on white
NO
and red CNI on main PCB ?
YES
Faulty main
PCB, replace.
Is there 230ac on brown
NO
and blue, on fan ?
YES
Faulty fan,
replace.
YES
YES
Faulty coil.
Is there 230ac between
brown pin 10 and blue
NO
pin 11 an CVI ignition
connector ?
NO Is fan turning.
Is there 230ac between
yellow on CH Overheat
Thermostat and Neutral.
YES
Faulty CVI
ignition unit.
32
NO
C
YES
YES
NO
Faulty APS,
replace.
Diagram 3.4