Chamberlain 3130M 1/3 HP, 3240M 1/2 HP 2. My remotes will not activate the door:, 3. My door reverses for no apparent reason:

HAVING A PROBLEM?
1. My door will not close and the light bulbs blink on	Bell Wire
my motor unit: The safety reversing sensor must be	Bell Wire
my motor unit: The safety reversing sensor must be
connected and aligned correctly before the garage door
opener will move in the down direction.
• Verify the safety reversing sensors are properly
installed, aligned and free of any obstructions. Refer
to Installation Step 4: Install The Protector System®.
• Check diagnostic LED for ﬂashes on the motor unit		“Learn”
then refer to the Diagnostic Chart on the following		“Learn”
page.		Button
page.		LED or
		LED or
		Diagnostic
2. My remotes will not activate the door:	Safety Reversing Sensor	LED
2. My remotes will not activate the door:	Safety Reversing Sensor
• Verify your Premium door control is not blinking.
If it is blinking, deactivate the Lock Mode following
the instructions for Using the Multi-Function Door
Control.	Sending Eye Safety	Receiving Eye Safety
• Reprogram remotes following the programming	Sending Eye Safety	Receiving Eye Safety
• Reprogram remotes following the programming	Reversing Sensor	Reversing Sensor
instructions. Refer to Programming.	(Amber Indicator Light)	(Green Indicator Light)

• If remote will still not activate your door, check diagnostic LED for ﬂashes on motor unit then refer to Diagnostic Chart on the following page.

	3. My door reverses for no apparent reason:	5. My lights will not turn off when door is open:
	Repeat safety reverse test after adjustments to force
		• The garage door opener is equipped with a security
	or travel limits. The need for occasional adjustment
		light feature. This feature activates the light on when
	for the force and limit settings is normal. Weather
		the safety sensor beam has been obstructed. Refer
	conditions in particular can affect door travel.
		to Operation section; Using the Wall Mounted Door
	• Manually check door for balance or any binding
		Control, Light Feature.
	problems.

•Refer to Adjustment Step 2, Adjust the Force.

4.My door reverses for no apparent reason after fully closing and touching the ﬂoor: Repeat safety reverse test after adjustments to force or travel limits. The need for occasional adjustment for the force and limit settings is normal. Weather conditions in particular can affect door travel.

•Refer to Adjustment Step 1, Adjust the UP and DOWN Travel Limits. Decrease down travel by turning down limit adjustment screw clockwise.