A.O. Smith Master-Fit 100 Series, Руководство по обслуживанию

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Servicing should only be performed by a Qualified Service Technician
TEST 10
–
MAIN BURNER IGNITION FOR LESS THAN 5 SECONDS
TEST 10 MAIN BURNER IGNITION FOR LESS THAN 5 SECONDS
IF......... THEN............
No extended main burner ignition. Check wiring and plug connections of HSI assembly plug and
ignition board receptacles E1, Pin 2. Check that HSI assembly is
not cracked or dirty. Check that flame prover will be in main flame.
Replace HSI assembly.
Still no extended main burner
ignition.
Replace ignition control board.
CONDITIONS:
• Power On – plug connected.
• Main Burner ignites for approximately 5 seconds then goes out.
• Tests 8 and 9 completed.
• Note flash code on ignition board LED.