2022 Winnebago Ekko

October 10, 2025. The vehicle is a 2022 Winnebago EKKO RV on a 2021 Ford Transit with 49,000 miles. The incident occurred after driving the vehicle for about 5 minutes with outside temperatures around 50 degrees Fahrenheit and noticed an unusual high pitch whine. When I opened the hood the Balmar MC-618 Alternator unit was extremely hot, smoking, and had a strong burning smell. Since the EKKO models have had numerous reports of secondary alternator/Balmar malfunctions I knew enough to disable the alternator by unplugging the 4 pin connector on the Balmar 618 regulator before traveling any further. The following morning I plugged the Balmar unit back in and the whining sound and burning smell immediately returned. There is a NHTSA Safety Recall 23V-234, Campaign # 174 EKKO 12V Charging System, sent out by Winnebago for this very safety issue due to fires. This recall was completed during the time that the original owner had this 2022 Winnebago EKKO (prior to our purchasing this 2022 Winnebago EKKO in June 2024). There have been numerous failures on Balmar units that have had the campaign #174 recall completed, including ones performed at the factory. The Winnebago fix is obviously not working and is still an extreme fire issue.

The vehicle is a 2021 Ford Transit with a 2022 Winnebago Ekko RV. The incident occurred when I started the engine and noticed an unusual high pitch whine. When I opened the hood the Balmar unit was extremely hot with a strong burning smell. Since the Ekko models have had numerous reports of secondary alternator / Balmar malfunctions I knew enough to disable the alternator by unplugging the 4 pin connector on the Balmar 618 regulator before traveling any further. The following morning I plugged the Balmar unit back in place to see if the high pitch sound reoccurred. The sound immediately returned and I used my infrared thermometer which read 438 degrees Fahrenheit on the Balmar alternator. The Lithionics battery app indicated the batteries were 90 percent full but would no longer charge, leaving me only shore power to recharge the batteries. There is a NHTSA Safety Recall 23V-234, Campaign # 174 Ekko 12V Charging System, sent out by Winnebago for this very safety issue due to fires. We had this recall completed at the Forest City Iowa Winnebago factory in April of 2024. There have been numerous failures on Balmar units that have had the campaign #174 recall completed, including ones performed at the factory. The Winnebago fix is obviously not working and is still an extreme fire issue.

The Winnebago factory installed secondary alternator (manufactured by Balmar) responsible for charging the batteries in my motorhome started to whine and overheat. Luckily the week prior, I had read about another EKKO owner experiencing the same symptoms before it created enough smoke that caused the driver to immediately pull off the road and extinguish the engine bay with a fire extinguisher. In an effort to avoid that, I disconnected the Balmer until it was able to be replaced. This original problem was supposed to be addressed in recall 174. Over a year later the recall supposedly addressed the issues by moving the regulator out of the engine bay, replacing the Balmer and a major reworking of the electrical system. After multiple components failed during the recall repair, my EKKO took over 6 weeks to get a working solution at a Winnebago dealership. That was a year ago. 10 days ago the same symptoms of whining and overheating returned resulting in me returning to the same dealer with them diagnosing the Balmer as defective and a health risk. Had I not disconnected the Balmer it would’ve overheated and resulted in melting the primary drive belt and potentially damaging the engine and other major components as documented by numerous other EKKO owners.

Winnebago recall 174 (NHTSA campaign 23V234000) regarding improper electrical wiring design and installation by Winnebago was recently completed on my RV. After completion of this recall I experienced another electrical fire in the engine compartment (my alternator had previously caught fire due to wiring and design defects noted in Winnebago recall 174). After extinguishing the fire I observed the Winnebago recall 174 remedy had been completed in such a way that an engine compartment wiring harness was under tension and in contact with the threads of a bolt on the backside of the new alternator installed as part of the Winnebago recall 174 remedy. This seems to have resulted in electrical anomalies and eventual ignition of the wiring harness. There were repeated brief intermittent brake and rear hatch warnings shortly before the fire (there is no rear hatch). The windshield washer system failed after uncommanded operation of the windshield wipers. Multiple other warnings and cautions flashed on the screen too fast for me to identify them. This all happened just prior to the fire which occurred during an engine start attempt while parked. I have video documentation of the smoke and photos showing fire damaged wiring and its location relative to the alternator bolt. Components are available for inspection. I have not yet contacted a dealer, service center or manufacturer yet since this event happened only days ago. My safety has been compromised by two engine compartment fires involving the same defect both before and after the Winnebago recall 174 remedy. For this to happen I have to assume either faulty mechanical completion of the recall or the recall remedy itself. This is but the latest fire hazard I have experienced with this unit (two actual fires, loose propane fitting which slowly flooded the coach with propane, overheated air conditioner that melted insulation in the ceiling and impending NHTSA campaign 24V541000 for solar fuse fire hazard).

Balmar alternator or regulator fails to work as designed. No charging of batteries when idling or driving. This is a Safety Issue because fires have been reported as a result of these electrical system failures. Lithionics (battery) app confirms no charge reaching the batteries, see attached screenshots. Potential Risk of Fire when not working properly as evidenced by others with Balmar failures as reported to NHTSA. This is the 3rd failure we have encountered: 1st failure confirmed by Winnebago, and was replaced with like parts. 2nd failure occurred just prior to the 2023 recall, and was addressed by Winnebago Factory Service during recall by replacing parts again. 3rd failure occurred today. The current failure happened when the unit (2022 Winnebago EKKO) was parked in our driveway, not while travelling. Upon starting the vehicle, the alternator emitted a loud whining sound and subsequently provided no charging to the batteries. We are aware of the symptoms based upon our previous failures, and know of others who also had a Balmar failure after having the prior recall completed. We desire a lasting permanent solution for this problem as it has not been adequately addressed by the previous Winnebago recall.