General Binding SureBind 230VAC Service Manual page 40

SYMPTOM
KNIFE HOT, BUT
WILL NOT GO TO
"READY".
MACHINE WILL NOT
GO TO "READY".
MACHINE GOES
FROM "READY" TO
"WAIT", AND BACK
AND FORTH.
5.0 TROUBLESHOOTING
5.7.2 Troubleshooting Guide Chart (Continued)
PROBABLE CAUSE
Thermistor may be defective.
Should read 1 Megaohm +20%
cold.
Temperature may need to be
adjusted higher.
Broken Wire(s), or loose Wiring
Connections.
Check for defective Heaters.
P.C. Board may be defective.
Cutoff Thermostat
defective.
Thermistor may be defective.
Should read 1 Megaohm +20%
cold.
See if LED "L1" lights on P.C.
Board; if it does, check for
defective Heater(s); if it doesn't,
defective P.C. Board.
Broken Wire(s), or loose Wiring
Connections.
Check resistance of Heaters for
approximately 36 ohms each,
and 18 ohms in parallel.
P.C. Board may be defective.
Defective Cutoff Thermostat.
CORRECTIVE ACTION
Replace Thermistor (9781354).
Adjust on Switch Panel per instructions
on page 6-6.
Check for defective Wiring, or loose
Wiring Connections.
Check resistance of Heaters for
approximately 36 ohms each, and 18
ohms in parallel, and replace Heaters
(9778217 - Upper Heater and 9778226
- Lower Heater).
Replace P.C.B. (9783672).
may be Replace Cutoff Thermostat (9781812).
Replace Thermistor (9781354).
Check resistance of Heaters for
approximately 36 ohms each, and 18
ohms in parallel, and replace Heaters
(9778217 - Upper Heater and 9778226
- Lower Heater), or replace P.C. Board
(9783672).
Check for loose Wiring Connections, or
defective Wiring.
Replace Heaters (9778217 - Upper
Heater and 9778226 - Lower Heater).
Replace P.C. Board (9783672).
Replace Cutoff Thermostat (9781812).
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