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Troubleshooting (continued)
Bulb goes out during operation.
1. Xenon power supply overheated; thermal switch open. Check power supply blower(s), air inlets
and outlets unobstructed.
2. Lamphead blower B1 failed or obstructed. Clean dust and dirt from blower squirrelcage. Check
for 230 V.AC at 2 & 3; replace blower if defective.
3. Lamphouse air pressure switch S4 faulty. Check for correct actuation; replace as required.
Excessive light flicker.
1. Faulty or aged bulb. Check for cracked or sagging electrodes; replace if defective.
2. Excessive ripple in DC output. See power supply manual.
Reduced light output.
1. Normal bulb aging. Increase output current. DO NOT EXCEED MAXIMUM CURRENT SPECIFIED BY
BULB MANUFACTURER.
2. Soiled reflector. Clean using commercial glass cleaner. USE NO ABRASIVES.
3. Soiled cowl glass. Clean as required.
Extremely long duration between ignition pulses.
1. Low DC "No Load" from xenon power supply. Check "No Load" voltage; see power supply
manual.
2. Defective spark gap E1. A "Ping" sound is normal; excessive "Hissing" is abnormal. Replace if
defective.
3. Low AC voltage to lamphead. Check for 230 V.AC at 3 & 4; if below 190 volts, check generator.
4. Defective timer chip on igniter PC board. Repalce as required.
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