Glow-worm Flexicom 24cx - Page 42

42
13 Fault Finding
EXTERNAL
CONTROLS
230V~50Hz
MAINS
SUPPLY
GAS
CONTROL
VALV
E
HEATING FLOW
THERMISTOR
HEATING
RETURN
THERMISTOR
D.H.W.
FLOW
THERMIST
OR
FAN
PUMP
THREE
WA
Y
VALV
E
FLOW
SENSOR
IGNITION
ELECTRODE
WA
TER
PRESSURE
SENSOR
IGNITER
UNIT
MAIN CONTROL
BOARD
APPLIANCE
INTERFACE
BOARD
N L R F
COMBI CX
12716
Diagram 13.1