Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Craftsman twin cylinder 19.5HP, no spark on plugs with switch interlock wire removed from the ignition module. Cleaned magnet and set gap to .010 (recommended setting on coil) wrapped wire on threads of plug and attached to ground. What should resistance reading be on coil contacts. Joe

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Hi,
I was able to solve the problem after I scanned several answers that were given on your site. The ignition module was defective and I purchased a new one, set the gap and it fired right over. Thanks for a great site. You saved me a $100.00 service call.
Thanks again,
Joe from Austin, IN

Posted on Aug 05, 2008

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