Inspect sensor wires for a short (staple in wire), correct wiring polarity (black/white wires reversed), broken or disconnected wires, replace/attach as needed.One or both of the Indicator lights on the safety sensors do not glow steady. Safety reversing sensors wire shorted or black/white wire reversed Safety reversing sensors wire open (broken or disconnected) One of the convenient features available in this model is battery backup. It was created exclusively for sectional doors with torsion assemblies. Raynor Premium series 8500RGD Prodigy II garage door opener troubleshootingOne of Rayonor’s most well-known Premium series models, the 8500RGD Prodigy II garage door operator may be used on both residential and light duty commercial doors. When you have an understanding of the problem, you will be able to decide whether you really need someone’s help to finish Raynor garage door repair.

It is a smart idea to start by consulting the Raynor garage door troubleshooting chart below.