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DIAGNOSIS OF LMO EQUIPMENT FAULTS AND LOCK OUT
Visual indication
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2 flashes
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3 flashes
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4 flashes
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5 flashes
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6 flashes
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7 flashes
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8 flashes
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9 flashes
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10 flashes
MAINTENANCE
WARNING. All operations should be performed with the electrical supply disconnected. After
removing the casing, it is possible to clean the photo resistance, inspect the motor, the elec-
tromagnetic valve and the transformer.
PHOTORESISTOR
Remove and clean the sensor carefully. Use a clean, dry cloth. When replaced make sure it
is properly attached.
FUEL PUMP FILTER
Close the fuel aspiration gate, remove the pump cover, take out the mesh cartridge, wash it
with petrol and re-assemble carefully.
Description of operating anomalies
No flame signal
• Faulty fuel valves
• Faulty flame detector
• Incorrect burner setting, no fuel
• No ignition
Not used
Stray light on ignition
Not used
Not used
No flame signal during operation
• Faulty fuel valves
• Faulty flame detector
• Incorrect burner setting, no fuel
Anomalies in fuel preheating time
Not used
Incorrect electrical connection or damage to
equipment
Possible causes
UK
31
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