Free estimate no charge—-Cust has lift master jack shat first generation bad circuit board. Diagnosis determined by intermittent Symptoms occurring sporadically. Recommend new operator customer will go to Lowe’s Purchase chamberlain side mount garage door opener and we will install for 150. Also Bring 32 feet of vinyl perimeter weatherseal molding. Also bring bottom weather seal retainer for Wayne Dalton foam core. Please schedule Parts pick up we don’t always have the stuff on our vans