Service Call 501-584
SM 5-73 D146/D147/D148/D149/D150
SC No. Level Error Name/Error Condition/Major Cause/Solution
§ NC sensor short-circuit
§ Connector disconnected
§ Replace the NC sensor
§ Reset the connector
§ Replace the connector
§ Replace the fusing unit
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC552-02 A Fusing Central Thermopile Does Not Reload
(T21) degrees C not reached after heater 1 ON for (t3) seconds.
SC552-03 A Fusing Central Thermopile Does Not Reload
Heating edge reload permission temperature not reached after
heater 1 ON for (t312) seconds.
§ Thermopile lens dirt
§ Thermopile modification, float
§ Outside input voltage guarantee
§ After excessive temperature rise prevention unit operation
§ Replace the thermopile
§ Make sure that the input voltage is within acceptable limits
§ Replace the fusing unit
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