Conair Carousel Plus D Series, User Manual

Page: 143 / 208

IMPORTANT : Always refer
to the wiring diagrams that
came with your dryer to lo-
cate specific electrical com-
ponents. Illustrations in the
User Guide are intended to
be representative only.
C h e c k i n g H e a t e r S o l i d S t a t e R e l a y s
1
Disconnect and lockout the main power supply.
2
Open the electrical enclosure.
3
Locate the regeneration solid state relays.
Refer to the wiring diagrams that came with
your dryer.
4
Turn power on to the machine.
5
Start the dryer.
6
Measure voltage across the high voltage connections using a voltmeter. When
relay is energized, as indicated by the LED (green) voltage should be read 0 (zero).
When relay is de-energized, LED off, full voltage should be measured across the
relay. When relay is off, if voltage reads zero, relay is bad and needs replaced. Re-
peat this procedure for each relay.
CAUTION: Always disconnect and lock out the main power sources before making electrical
connections. Electrical connections should be made only by qualified personnel.
0
NOTE: Measure voltage using a voltmeter across the two high voltage connections of each
relay. (Shown here circled in red.)
Regeneration heater
solid state relays
Process heater
solid state relays
OFF
O
ON
I
6
T
roubleshooting
Tr o u b l e s h o o t i n g l 6 - 3 1
IMPORTANT : Only qualified
personnel should take
measurements on energized
equipment. Follow all local,
regional, and company
guidelines regarding safe
electrical testing proce-
dures.