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Garage Door Technician
Garage Door Troubleshooting & Diagnostics (Canada)
Safety Sensor Troubleshooting
Knowledge Check
Safety Sensor Troubleshooting
Knowledge Check
Knowledge Check
1 / 11
A door will not close during afternoon hours but works fine in the morning. What is the most likely cause?
A
Afternoon humidity affecting the motor
B
The timer is set incorrectly
C
Direct sunlight hitting the photo eye receiver
D
The opener overheats in the afternoon
Check Answer
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