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Chapter 4: Troubleshooting

Symptom Troubleshooting Steps

E Indicator lights not working.

o

1. Conrm failure condition.

2. Remove cover and check all connections.

3. Check voltage across aected indicator LED pins on Display

PCB. If voltage is present, replace the Display PCB. If no

voltage is present, replace the Control PCB.

F Light output measurement is out of

specication.

1. Check if the LED failure indicator is blinking. If it is blinking,

see D.

2. Check that the beroptic pad connector is fully inserted and

that nothing is obstructing the port.

3. Check the LED lenses inside the beroptic pad connector port

for discoloration or damage.

NOTE: See Operation and Maintenance Manual for approved

cleaning procedure.

4. Check the beroptic light pad and beroptic lenses on the

connector for discoloration or damage.

NOTE: See Operation and Maintenance Manual for approved

cleaning procedure.

5. Make sure that the irradiance measurement follows the

procedure detailed in the Operation and Maintenance Manual.

6. Replace the LED module.

7. If the problem persists, replace the beroptic light pad.

8. If the problem persists, replace the Control PCB.

G Excessive fan noise

1. Check the air lter for obstruction.

2. Check the fan for obstruction.

3. Replace the fan.

GE BiliSoft Service Manual

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