Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
PIB 494
Service Bulletin/Repair Instructions
If the coach's HWH leveling system has intermittent issues when operating, check for corrosion or loose mounting bolts. Torque the mounting bolts (if needed) to 30 ft. pounds. A ground cable may also be installed to improve the overall grounding of the HWH pump assembly.
TSB-404
Service Bulletin/Repair Instructions
NEWMAR CORP.: ON CERTAIN TRUCKS, ON THE LOWER RIDELL AIR SPRINGS, A DEFECT RELATING TO MISSING LOWER SPRING NUTS OR AIR SPRING RETAINER FASTENERS MAY BE LOOSE. MODELS 2005-2013 LONDON AIRE, KING AIRE. *PE
TSB-375
Service Bulletin/Repair Instructions
NEWMAR: DUE TO POTENTIAL POOR COOLING PERFORMANCE ON SOME NORCOLD 2117 REFRIGERATORS WITH SERIAL #11323165 AND EARLIER, AN UPGRADE KIT IS AVAILABLE TO BE INSTALLED. *PE
TSB-372
Service Bulletin/Repair Instructions
NEWMAR CORP.: FAILED AMSAFE SEAT BELTS BEING RETURNED TO NEWMAR FOR WARRANTY COVERAGE. PLEASE NOTE THAT WHEN CHANGING OUT WARRANTY AMSAFE SEAT BELTS, BOTH HARNESS STRAP WITH CLIP AND BUCKLE PORTION WILL NEED TO BE RETURNED. ALL MOTORIZED MODELS AND ALL MODEL YEARS ARE INCLUDED. *PE
342
Service Bulletin/Repair Instructions
NEWMAR - ALL DOMESTIC UNITS RETAILED AFTER 6/2/08 - FMVSS 120 NOW REQUIRES ALL RV'S HAVE THEIR WEIGHT LABELS MODIFIED IF MORE THAN 100 LBS HAS BEEN ADDED TO THE UNIT BETWEEN THE TIME OF MANUFACTURE AND THE TIME OF FIRST RETAIL DELIVERY. *NJ
337
Service Bulletin/Repair Instructions
DISCOLORATION IN THE REFRIGERATOR ENCLOSURE WALL ADJACENT TO THE FLUE EXHAUST ON NORCOLD 1200LR REFRIGERATORS. CONCERN IS THAT THE DISCOLORATION IS DUE TO EXPOSURE TO HEAT FROM THE FLUE. *NJ