WARNING:
A possible shock hazard exists. Do not
allow arcing for a prolonged period of time. The power
supply output can be checked with a high-voltage volt-
meter. The output should read between 9000 and 11000
vdc. If the output is below 7500 vdc, replace the power
supply.
7. Check switch and light circuit by applying electrical power
to plug on power door. This can be accomplished with
jumpers from cabinet receptacle. Attach grounding wire
between power door base and cabinet.
WARNING:
A possible shock hazard exists. Be careful
not to short out the power supply. The buss bar and
contact plate carry live high voltage current on —
7300vdc, 1 MA.
The LED light circuit output can be checked with a voltmeter. The
reading should be 4vac.
8. Check power supply.
a. Place screwdriver on ground plate (access panel). At the
same time move shank portion of screwdriver towards
high-voltage output of power supply. If arcing occurs
when screwdriver comes within approximately 1/8 in. of
power supply, power supply is operating properly. If no
arcing occurs, power supply is defective. Replace power
supply.
b. Use high voltage tester. Voltage output should be
between 9000 and 11000vdc.
Fig. 26—Electrical Troubleshooting Flow Chart
A91482
BLOWER ON
ENERGIZE
UNIT
LIGHT ON
CHECK CELLS
CONTACT
SPRING
UNIT
OPERATING
PROPERLY
IF CELLS
IN PLACE
LIGHT OFF
REMOVE
CELLS
CHECK LIGHT,
LIGHT
CIRCUIT
CHECK:
WIRING
INSULATORS
POWER
SUPPLY
LIGHT IS ON
LIGHT OFF
—12—
