SC No. Level Error Name/Error Condition/Major Cause/Solution
• 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.
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC553-00 A Fusing End 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 defective
• BCU defective
• Replace the IOB
• Replace the BCU
• Replace the fusing unit
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC554-01 A Fusing end thermopile high temperature detection (hardware)
In the event of an error
• Triac defective (short-circuit)
• Engine controller defective
• Heating edge thermopile defective
• Fusing control software: out of control
• If the triac is defective, replace the AC power supply board
• If necessary, replace the BCU or heating edge thermopile
5. Troubleshooting
510
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