Controller Display Is Blank, Main Power (On / Off) Light Or Indicator Is Lit - Garland XG24-JIB Service Manual

TECHNICAL TROUBLESHOOTING

Controller Display is BLANK, Main Power (ON / OFF) light or indicator is LIT

Part # JIBSM08 Rev.6 (08/04/09)
Check for 120 VAC at terminal
marked "LIM" & "N"
NO
Trace circuit for terminal
marked "LIM" brown wire to
back of unit and into molex
plug. Check for open
circuit.
NO
Check for continuity in rear
of unit at molex plugs at
brown wires marked "50"
and "51"
continued
Check for loose or
disconnected black wires on
YES
coil of contactor and black
wires going to 24VAC
transformers.
Repair Open or damaged
YES
wire
YES
Check opposite side
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