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Académie
Garage Door Technician
Garage Door Troubleshooting & Diagnostics (Canada)
Systematic Diagnosis Fundamentals
Vérification des connaissances
Systematic Diagnosis Fundamentals
Vérification des connaissances
Vérification des connaissances
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When diagnosing an ANSI/CAN/UL 325 monitoring lockout on a door that only closes with constant-pressure, what three areas must be checked?
A
Spring tension, cable drum set screws, and track alignment
B
Motor brushes, limit switches, and drive gear condition
C
Sensor wire continuity, optics alignment, and B1/B2 device integrity
D
Remote frequency, Learn button function, and logic board voltage
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