Name: Chamberlain HD220C
Brand: Chamberlain
Rating: 4 (1 reviews)

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Diagnostic Chart

Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrows on the garage door opener flash the diagnostic codes.NOTE: For troubleshooting questions, please visit

www.chamberlain.com.

DIAGNOSTIC CODE

SYMPTOM SOLUTION

Up Arrow

Flash(es)

Down Arrow

Flash(es)

1 1 The garage door opener will not close and the light

bulbs flash.

Safety sensors are not installed, connected, or wires may be cut.Inspect sensor wires for a

disconnected or cut wire.

1 2 The garage door opener will not close and the light

bulbs flash.

There is a short or reversed wire for the safety sensors. Inspect safety sensor wire at all staple and

connection points, replace wire or correct as needed.

1 3 The door control will not function. The wires for the door control are shorted or the door control is faulty. Inspect door control wires at all

staple and connection points, replace wire or correct as needed.

1 4 The garage door opener will not close and the light

bulbs flash.

Safety sensors are misaligned or were momentarily obstructed. Realign both sensors to ensure both

LEDs are steady and not flickering. Make sure nothing is hanging or mounted on the door that would

interrupt the sensor’s path while closing.

1 5 Door moves 6-8" stops or reverses. Manually open and close the door. Check for binding or obstructions, such as a broken spring or

door lock, correct as needed. Check wiring connections at travel module and at the logic board.

Replace unit if necessary.

No movement, only a single click. Manually open and close the door. Check for binding or obstructions, such as a broken spring or

door lock, correct as needed. Replace logic board if necessary.

Opener hums for 1-2 seconds no movement. Manually open and close the door. Check for binding or obstructions, such as a broken spring or

door lock, correct as needed. Replace unit if necessary.

1 6 Door coasts after it has come to a complete stop. Program travel to coasting position or have door balanced by a trained door systems technician.

2 1-5 No movement, or sound. Replace logic board.

3 2 Unable to set the travel or retain position. Check travel module for proper assembly, replace unit if necessary.

4 1-4 Door is moving stops or reverses.

Manually open and close the door. Check for binding or obstructions, such as a broken spring or

door lock, correct as needed. If the door is binding or sticking contact a trained door systems

technician. If door is not binding or sticking attempt to reprogram travel (refer to page 26).

4 5 Opener runs approximately 6-8", stops and reverses. Communication error to travel module. Check travel module connections, replace unit if necessary.