41
_ _ _ _ _
Lockout Alarm A 0 0
Blocking too long error
Enter Installer Menu, Boiler
Status. Scroll to most recent
Lockout Alarm or Blocking Error.
Diagnose corrective action using
appropriate Troubleshooting Tree.
Is harness connected to Gas
Valve? Is harness connected
to Control Module J13?
NOYES
_ P _ _ _
Lockout Alarm A 0 5
GV relay error
Replace Control
Module
Connect harness
Disconnect harness from
Control Module J13. Measure
resistance across J13-3 and
J13-4. Is resistance between
1.0 and 1.2 kohms?
Replace Gas Valve
YES NO
Disconnect harness from Gas
Valve. Does each wire have
continuity between Gas Valve
and Control Module?
YES NO
Replace harness
13 - TROUBLE SHOOTING
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