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Installation and Servicing
SECTION 4 - FAULT FINDING
4.4 FLAME LOSS
4.5 THERMAL FUSE LOCKOUT
If the boiler is Restarted, does the boiler Ignite for a
short time and then Extinguish
Is the Gas Pressure available at the boiler > 18 mbar?
Is 24Vdc available at the Gas Valve during ignition?
Check Spark Generator and associated Harness
for continuity, visual condition and position (refer to
Section 3.17). Are these functioning correctly?
Check Ignition Electrode and associated Harness
for continuity, visual condition and position (refer to
Section 3.15). Are these functioning correctly?
Check Syphon and condensate drain pipework
for blockage and rectify if necessary. Boiler now
working OK?
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Check the Detection Electrode and associated Harness
for continuity, visual condition and position. Check if the
Condensate Pipe is blocked. Check if the Flue is blocked.
Replace as necessary
Check Gas Supply and rectify fault
Check wiring from Gas Valve to PCB and replace if
necessary, otherwise replace the main PCB
Replace Spark Generator and Harness
as necessary
Replace Ignition Electrode and
associated Harness as necessary
Replace Gas Valve
Isolate the electrical supply to the boiler and system
Ensure that the 2 way electrical connection to the
thermal fuse is pushed fully home and that the 8 way
connector is properly connected to the primary PCB.
Press RESTART, then power cycle the boiler. Is the
fault still present?
Disconnect the 8 way connector from the primary PCB.
Is there continuity across the black and yellow wires in
pins 1 and 2?
Disconnect the electrical connection to the thermal
fuse. Is there continuity across the fuse?
Replace the heat exchanger
Yes
Yes
Yes
No
No
Replace the primary PCB
Replace the wiring from the PCB to the
thermal fuse
Summary of Contents for VOGUE MAX COMBI 26
Page 4: ...4 Installation and Servicing...
Page 6: ...6 Installation and Servicing...
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