Beltronics Express 935 Owner's Manual - Page 21

TROUBLESHOOTING Solutions for Common Problems If your unit is not operating properly, please refer to the outline below. Problem Unit not receiving power "Poor detection range" Erratic or frequent alerts Partial or no display Possible Cause Plug not properly inserted Corrective Procedure Reinsert plug and rotate Fuse in power cord is defective Replace with 1 amp 250 Volt 3AG fuse (see page 12) Lighter socket not clean and negatively grounded Consult your dealer or a professional mechanic Fuse or electrical wiring Consult your dealer or a for lighter socket defective professional mechanic Antenna/lens opening partially blocked Radar signals unable to pass through windshield High concentration of non-police band sources Reposition unit with unobstructed view of road ahead and behind. Determine whether your vehicle has a "heated windshield" known as Instaclear® or Electri-Clear®, or is covered with a metallic sun screen. Use CITY mode Use CITY ALL mode Review section in this manual on Performance Verification Dim or dark mode engaged Disengage dim or dark mode If you experience a problem with your unit that is not covered in this outline please call, Monday to Friday, 8 AM-6 PM EST, for assistance: 800-341-2288 USA 800-268-3994 CANADA 20