Garland XG24-JIB, Service Manual

Page: 41 / 88

Part # JIBSM08 Rev.6 (08/04/09) Page 41
TECHNICAL TROUBLESHOOTING
continued
Controller Display is BLANK, Main Power (ON / OFF) light or indicator is LIT
NO
YES
NO
Probable
diagn
osis
YES
YES
Check for 120 VAC at terminal
marked “LIM” & “N”
Trace circuit for terminal
marked “LIM” brown wire to
back of unit and into molex
plug. Check for open
circuit.
Check for continuity in rear
of unit at molex plugs at
brown wires marked “50”
and “51”
Check for loose or
disconnected black wires on
coil of contactor and black
wires going to 24VAC
transformers.
Repair Open or damaged
wire
Check opposite side