Service Call 501-584
SM 5-67 D146/D147/D148/D149/D150
SC No. Level Error Name/Error Condition/Major Cause/Solution
§ Reset the NC sensor
§ Reset the connector
§ Replace the connector
§ Replace the unit
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC542-02 A Fusing central thermopile does not reload
(T21) degrees C not reached after heater 1 ON for (t3) seconds
SC542-03 A Fusing central thermopile does not reload
Heating central reload permission temperature not reached after
heater 1 ON for (t311) seconds.
§ Thermopile lens dirt
§ Thermopile modification/float
§ Outside input voltage guarantee
§ After excessive temperature rise prevention unit operation
§ Replace the thermopile
§ Check that the input voltage is within acceptable limits
§ Replace the unit
SC No. Level Error Name/Error Condition/Major Cause/Solution
543-00 A Fusing central thermopile high temperature detection (software)
Above (T3) degrees C detected for (t4) seconds continuously.
Detection period 100ms, detection count: 10 times or more.
§ Triac short-circuit
§ IOB board defective
§ BCU board defective
§ Replace the IOB board
§ Replace the BCU board
§ Replace the fusing unit
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