TM031 Integrity 18, 20, 24, 26L Service Instructions REV: B
D.O.I: February 2008
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
Is error
code 72
displayed?
YES
NO
False flame detection
malfunction
Ignition failure
or cross light
failure
Test 11
NO
Is flame
detection signal in
maintenance information
00?
Replace the PCB assembly.NO
YES
Clean or replace the combustion
chamber front panel assembly.
Replace the PCB assembly.
YES
NO
Did
the igniter
spark?
YES
Is
voltage supplied to
the igniter?
NO
NO
YES
Replace the igniter assembly,
electrode or cable.
3.1
3.3
Replace the PCB assembly.
Is error
code 11
displayed?
Did
the burner
ignite?
Is
there any voltage
at the flame
sensors?
YES
3.2
YES
NO
Test 12
Test 13
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