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Machinc
Machinc, General Contractor
Category: Home Improvement
Satisfied Customers: 836
Experience:  Has written home improvement articles since 2008. Earned South Carolina Residential Builders License in 1991.
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I have a liftmaster professional garage door opener & i

Customer Question

hi i have a liftmaster professional garage door opener & i replaced light bulbs & they still dont work- is there anything i can do?
JA: I'll do all I can to help. How long have you been dealing with this?
Customer: probably had it for 5 years or more
JA: Do you plan on doing the work yourself?
Customer: light problem just recently
JA: Anything else we should know to help you best?
Customer: everything else works fine, just no lights
Submitted: 1 month ago.
Category: Home Improvement
Expert:  Machinc replied 1 month ago.
The lights are controlled by a relay
Expert:  Machinc replied 1 month ago.
You can find it by following the wires from the light
Expert:  Machinc replied 1 month ago.
One will go to a relay the other straight to the electrical feed.
Expert:  Machinc replied 1 month ago.
When you find the relay. ( possibly located on or near the control board ) tap it lightly the light may flicker or come on.
Expert:  Machinc replied 1 month ago.
If light comes on and continues to work dirty or stuck relay was the problem
Expert:  Machinc replied 1 month ago.
Problem may come back after a short time .
Expert:  Machinc replied 1 month ago.
Other possible causes.
1: loose wires to relay, control board or light.
Expert:  Machinc replied 1 month ago.
2: contacts in light socket bent down . NOTE: WITH POWER OFF
Bend contacts up with small screwdriver or tweezers.
Expert:  Machinc replied 1 month ago.
3: bad control board :
most expensive part to replace so recheck other causes before replacing .
If not sure you may want to call a professional repsirman.
Expert:  Machinc replied 1 month ago.
4: power not getting through light socket due to corrosion.
Use voltage tester after cleaning contacts with POWER OFF . Can use sharp pointed small file to clean.
Expert:  Machinc replied 1 month ago.
Note: newer light bulbs do not always make good contact.
Thats why the socket contacts sometimes need adjusting

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