Page D-36
G900X/G950 Installation and Maintenance Manual – Troubleshooting
Revision D
190-00719-00
D.4.3 Cooling Alerts
Message Cause
Solutions
MFD1 COOLING – has poor
cooling. Reducing power
usage.
The MFD has exceeded
its operating temperature
range.
•
Check cooling fan and wiring for
proper operation.
−
Replace cooling fan if unable to
determine if operating correctly.
•
If problem persists, replace the
MFD.
PFD1 COOLING – has poor
cooling. Reducing power
usage.
PFD1 has exceeded its
operating temperature
range.
•
Check cooling fan and wiring for
proper operation.
−
Replace cooling fan if unable to
determine if operating correctly.
•
If problem persists, replace the PFD.
PFD2 COOLING – has poor
cooling. Reducing power
usage.
PFD1 has exceeded its
operating temperature
range.
•
Check cooling fan and wiring for
proper operation.
−
Replace cooling fan if unable to
determine if operating correctly.
•
If problem persists, replace the PFD.
D.4.4 Key Alerts
Message Cause
Solutions
MFD1 “key” KEYSTK – key is
stuck.
The system has
determined a key is stuck
on the MFD.
PFD1 “key” KEYSTK – key is
stuck.
The system has
determined a key is stuck
on PFD1.
PFD2 “key” KEYSTK – key is
stuck.
The system has
determined a key is stuck
on PFD2.
•
Go to the GDU TEST page in
configuration mode and verify key is
stuck (if key is stuck the
corresponding indicator will be
green).
•
Exercise suspected stuck key and
reset GDU TEST page to see if
indicator remains green without
pressing the key.
•
If problem persists replace the
display.