Why Won't MaxxFan Deluxe 7500K Roof Vent Work with Lithium Batteries
Updated 06/08/2023 | Published 06/07/2023
Products Featured in This Question
Question:
Ive recently switched from lead-acid AGM batteries to LiFePo4 batteries on my travel trailer. My MaxxFan Deluxe 7500K will not power up and now beeps and flashes green on the keypad continually. The unit works fine when I switch back to a fully charged lead-acid AGM battery. Any assistance is greatly appreciated. Thank you,
asked by: Randall P
Expert Reply:
The older MaxxFan 7500K circuit boards aren't able to handle the higher voltage of lithium batteries which is why you are having the problem you have. So what you would need is a new circuit board with part number # MA10A21275K as the new version can work with lithium batteries.
Product Page this Question was Asked From
MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke
- RV Vents and Fans
- Vent
- Roof Vent
- Powered Lift
- 12V Fan
- Reversible Fan
- Plastic
- Tinted
- MAXXAIR
more information >
Featured Help Information
Instructions
Continue Researching
- Article: Best RV Roof Vents
- Q&A: Dometic Soft Start for Dometic B59516.711C0-MX
- Q&A: PullRite SuperGlide for 2020 Ford F-350 Towing 2027 Keystone Cougar 316RLS
- Q&A: Will Goodyear Endurance ST225/75R15 Fit 2024 Winnebago Access 26RL
- Q&A: Replacement Refrigerator for RV for Norcold 1095R
- Q&A: Parts Needed to Flat-Tow a 1997 Chevrolet Blazer
- Q&A: Replacement Lithium Battery Compatible Fan for a MaxxFan 5100k
- Q&A: Recommended Replacement for a Shurflo 4900-0201 Water Pump
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Trailer Wiring Diagrams
- Article: Stability Control for Heavy Duty Vehicles
- Article: Best Air Bag Suspension 2025
- Article: How to Replace or Install an RV Roof Vent