6-28 l Trou ble sh oo ti ng
IMPORTANT: Always refer
to the wiring diagrams that
came with your dryer to
locate specific electrical
components. Illustrations in
the User Guide are intended
to be representative only.
Checking Heater Solid State Relays
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. Repeat this procedure for each relay.
Regeneration heater
solid state relays
CAUTION: Always disconnect and lock out the main power sources before
making electrical connections. Electrical connections should be made only by
qualified personnel.
✐
NOTE: Measure voltage using a
voltmeter across the two high
voltage connections of each
relay. (Shown here circled in
red.)
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