5. Troubleshooting
Code 7946: “Fan speed lamp anode too high” (Warning)
Situation Solution
Malfunction lamp anode fan
(reference 1 image 5-54).
Replace the Fan. See "Lamp anode fan", page 301 XXX X.
Malfunction Fan Control bo ard. Replace the Fan Control Board. See "Replacing the Fan control board", page 278.
Code 7947: “Fan speed lamp anode too high” (Error)
This error code is probably preced ed by the warning co de 7946: “Fan speed lamp anode too high”. The same troubleshooting table
can be applied to.
Code 7948: “Fan speed lamp cathode too low” (Error)
This error code is probably preceded by the warning code 7949: “Fan speed lamp cathode too low”. Th e s ame troubleshooting table
can be applied to.
Code 7949: “Fan speed lamp cathode too low” (Warning)
Situation Solution
Partial blocked lamp cathode fan
(reference 1image 5-55) Fan is still
turning but som ething slows down
the fan speed.
Unblock the fan. Ensure that the fan can turn freely.
Damaged wire unit (reference
2image 5-55 and reference
20image 5-49)
Check if the wire unit of the fan is not damaged. Repair if possible, otherwise replace
with new one.
Malfunction Fan Control bo ard. Replace the Fan Control Board. See "Replacing the Fan control board", page 278.
Lamp cathode fan end of life. Replace the fan. See "Lamp cathode fan", page 296 .
1
2
Image 5-55
Code 7950: “Fan speed lamp cathode too high” (Warning)
Situation Solution
Malfunction lam p cathode fan
(reference 1 image 5-50).
Replace the Fan. See "Lamp cathode fan", page 296.
Malfunction Fan Control bo ard. Replace the Fan Control Board. See "Replacing the Fan control board", page 278.
Code 7951: “Fan speed lamp cathode too high” (Error)
This error code is probably preceded by the warning code 7950: “Fan speed lamp c athode too high”. The same troubleshooting
table can be applied to.
Code 7952: “Fan speed power supply left too low” (Error)
This error co de is probably pre ceded by the warning code 7953: “Fan speed po wer supply left too low”. The same troubleshooting
table can be applied to.
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R5905312 HDF W SERIES 24/01/2013
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