# Service bulletin CA\#9848

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: 10185692
- Published by NHTSA: 2021\-01\-22
- Manufacturer's number: CA\#9848
- Manufacturer's date: 2021\-01\-21
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

On certain 2020 \& 2021 Wonder models the Firefly Multiplex panel requires a software update to version 3.1.2. The Multiplex panel will try to prime the generator if the furnace is "ON" when the battery disconnect is turned "OFF". SOP2839 is included for instruction on how to perform the Campaign.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185692-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10185692-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 TRIPLE E RV WONDER
- 2020 WONDER W24FTB
- 2020 WONDER W24MB
- 2020 WONDER W24RTB

JSON: [/v1/bulletins/10185692](/v1/bulletins/10185692)

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