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E
Check and correct if necessary
1. Electrical and pressure tube connections
2. Blockage of pressure tubes
3. Restriction in flue
4. Venturi
F
NO
Gas at burner
G
1.
Check the burner setting pressure of
the gas valve
(see Section 9.2 of Commissioning)
2.
Voltage at modulating coil of gas valve is:
Max. burner press.approx 4.5V DC (7V DC LPG)
Min. burner press.approx 0.5V DC
Current at modulating coil of gas valve is:
(Use an instrument with average function for this
measure)
30 ÷ 230 mA DC (45 ÷ 310 mA DC LPG)
H
Check and correct if necessary
1. Ignition electrode and lead
2. Electrode connection
3. Spark gap and position
NO
Ensure gas is on and purged
PCB - A1 connector has 230V AC
across terminals 2 & 4
NO
neon flashing
NO
Replace PCB
230V at Main PCB - A1
YES
connector across terminals
3 & 4. Check wiring
14.0 Fault Finding
Replace air
pressure switch
YES
Replace gas valve
YES
Turn selector switch
to reset position
YES
Replace gas valve
NO
Replace PCB
NO
Replace PCB
YES
Replace igniter
R
41
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