WenmarOpen by Wenmar Pro

Service bulletin SS1034379

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10168131
Published by NHTSA2019-11-22
Manufacturer's numberSS1034379
Manufacturer's date2019-11-21
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

Service Solution concerning TBB noise cancellation with Total Control AC back feed. The Thermostatic AC controllers is back feeding from the AC system, and not allowing the Dash Fans to cancel when the Noise switch is active.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Equipment and accessories, Heating and air conditioning

Vehicles listed
THOMAS BUILT BUSES THOMAS BUILT BUSES

Listing a model year does not mean every vehicle of it is concerned: the document says which.