Gas fired igniter ZA0 / ZDA0
Troubleshooting
Status: 11-2018
- 53 -
Fault
Possible cause
Solution
To be done by
Fault shutdown takes
place during
operation
Fluctuating combustion
chamber of supply pressure
levels, resulting in flame blow-
off
Check the pressure settings at
the test nipples. If necessary
provide a differential pressure
regulation system for gas and
air
Qualified
personnel
Pilot flame highly subject to
influence by the main flame or
is suffocated
Change the position of the gas
fired igniter
Qualified
personnel
Use more powerful gas fired
igniter
Lock-out because a
flame is signalled at
the start before the
gas valve has
opened
Flame was not extinguished
when switching off due to a
leaking valve, and is already
present when restarting
Replace the gas valve
Gas specialist
personnel/
Owner
Defective ionisation flame
monitor
Replace the ionisation flame
monitor
Manufacturer/
Qualified
electrician
The gas fired igniter
and control unit are
operational, but no
signals are
transmitted via the
integrated flame
relay
Integrated fuse defective
Replace fuse
Qualified
electrician