20
Remove sources of ignition
Remove electrical load
Set FCM to “Off” and “Disabled”
Is fault repeated?
Restart FCM
Verify hydrogen source is at an
output pressure within specification
(application specific)
Contact
IE Product Support Team
Return FCM to operation.
Inform IE Product Support
of issue
Can the leak source be
identified?
Have a gas trained person
repair or replace faulty
component(s)
Isolate hydrogen source,
contact IE Product
Support Team urgently
Have a gas trained person conduct
pressure decay test on external
hydrogen supply system
Isolate hydrogen source, contact
IE Product Support Team
yes
yes
yes
pressure stable
no
no
no
pressure
dropping
Trouble-shooting guide
12
12.2
Check for fuel leak