# Service bulletin TSB 20\-01

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.

- Type: Service bulletin
- NHTSA id: 10189723
- Published by NHTSA: 2021\-04\-05
- Manufacturer's number: TSB 20\-01
- Manufacturer's date: 2021\-03\-24
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

From November 2020 to February 2021, units produced at Plant 250 have a wire missing that would cause the 120VAC load shedding to not work properly. This affects model year 2021 31E, 31EV, 31W, 31WV, SL31, SE31, LF31, and WS31 floor plans with the 2 A/C option

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189723-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10189723-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2021 THOR MOTOR COACH FOUR WINDS
- 2021 THOR MOTOR COACH QUANTUM
- 2021 THOR MOTOR COACH redundant CHATEAU

JSON: [/v1/bulletins/10189723](/v1/bulletins/10189723)

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