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Bulb fails to ignite.
1.
AC power not on to lamphouse. If 115 V.AC not read at 2 & 4, see power supply manual.
Check for loose 220 volt connection at 7 & 8.
2.
Door interlock switch S1 open. Close and secure lamphouse access door. Tighten all three
screws; lock door and install security screw.
3.
Faulty door interlock switch. Check for 115 V.AC at 9 & 12; replace switch if defective.
4.
Air vane switch S4 not closing. Check for unobstructed operation; clean if required. Check
continuity between "NO" and "COM"; replace if defective.
5.
Faulty S2 "ON-OFF" switch. Check for voltage at 3 & 5; check for loose wiring. Replace if
defective.
6.
Automation fault. Override automation by switching MODE to "MAN." and placing LAMP
switch in "ON." See Automation Controller manual.
Bulb fails to ignite; ping audible, bulb flash visible.
1.
Inadequate DC output from xenon power supply. Set power supply output to correct range
required for bulb wattage.
2.
Faulty or expired xenon bulb. Replace as required.
Bulb fails to ignite; ping audible, no bulb flash.
1.
Faulty xenon bulb. Check for cracked electrodes or darkened envelope. Replace if defective.
2.
Ignition pulse shorting to ground. Inspect DC leads for burned insulation; dress leads away
from grounded metal components.
No high voltage ping audible; MODE switch in "MAN." and LAMP switch in "ON."
1.
Loss of AC control voltage. Check xenon power supply for tripped circuit breaker or open
thermal switch. See power supply manual.
2.
Little or no DC "No Load" voltage. Measure DC "No Load" voltage at 10 & 15. See power
supply manual.
3.
Faulty igniter printed circuit board. If bulb ignites by pressing Emergency Ignition switch,
replace printed circuit board.
4.
Faulty igniter. Check for 115 V.AC at 5 & 6; adequate DC "No Load" at 10 & 15. Replace
igniter if defective.
Bulb goes out during operation.
1.
Xenon power supply overheated; thermal switch open. Check power supply blower(s), air
inlets and outlets unobstructed. See power supply manual.
ULTRA 80 TROUBLESHOOTING
U80/022
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