Troubleshooting MaxxFan That Beeps and Has Flashing Green Light
Updated 01/06/2025 | Published 03/27/2020
Products Featured in This Question
Question:
My positive and negative are correct. My volts are not below 11 Periodically my green light flashes and the fan shuts off for no reason. What do I need to do to correct this issue?
asked by: Robert W
Expert Reply:
I'll start off by saying that typically the flashing green lights on your MaxxFan # MA00-04000K means that there is some sort of voltage issue and even though when you tested you're getting what seems to be proper voltage, I would guess there is a short on the circuit that is causing the problem.
I would recommend checking to make sure that the ground is properly attached to an area of the coach that is free from dirt, debris and corrosion. This would also be a good time to make sure that the connection with the 12v power wire is good and not going in and out because of a poor connection.
If both of these check out, it's possible that your circuit board is going bad. To replace the circuit board on your MaxxFan # MA00-04000K you can use part # MA10A21276K.
Product Page this Question was Asked From
MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White
- RV Vents and Fans
- Vent
- Roof Vent
- Manual Lift
- 12V Fan
- Reversible Fan
- Plastic
- White
- MAXXAIR
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Search Results: maxxair rv vents and fans
- Search Results: tpms
- Search Results: accessories and parts
- Shop: MaxxAir MaxxFan Rooftop Vent w/ Pivoting Fan - 4 Speed - Manual Lift - Smoke Lid
- Shop: Replacement 12-Volt Variable Speed Fan Motor for MaxxAir MaxxFan RV Roof Vents
- Q&A: Troubleshooting Flashing Green Light and Beeping from MaxxFan Deluxe
- Shop: MaxxFan Deluxe Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - Smoke
- Shop: TireMinder i10 TPMS for RVs and Trailers w/ Signal Booster - 4 Tire Sensors
- Shop: MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke
- Shop: Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents
- Video: Review of Maxxair - RV Vents and Fans - MA10A21276K
- Q&A: Looking for Replacement Circuit Board for MaxxFan RV Roof Vent
- Shop: Thule Telescoping Ladder for Vans - 9 Steps - 8-1/2'
- Q&A: Replacement Lithium Battery Compatible Fan for a MaxxFan 5100k
- Video: Review of Maxxair - RV Vents and Fans,Enclosed Trailer Parts - MA10-20968
- Q&A: Looking for Replacement Circuit Board for MaxxAir Deluxe RV Roof Vent
- Search Results: ventline replacement domes
- Q&A: Correct Replacement Circuit Board For A MaxxAir 5100K Model Fan
- Shop: RV Exterior Lighting
- Q&A: How to Test Lift Motor on MaxxAir MaxxFan
- Q&A: Do Newer MaxxFan Roof Vents Have Upgraded Control Board to Handle Higher Voltage
- Video: Ventline RV Vents and Fans - Roof Vent - BVA0502-03 Review
- Search Results: rv sinks
- Search Results: ventline parts
- Search Results: bathroom vent rv vents and fans
- Video: Review of Maxxair RV Vents and Fans - Enclosed Trailer Parts - MA10A21275K
- Video: Review of Maxxair RV Vents and Fans - MA39FR
- Video: Vent Cover for Ventline Old Style Rounded Dome Trailer Roof Vents: The Breakdown
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Shop: RV Interior Lighting
Lex
1/6/2025
Just tagging along on an existing thread here... I have been running my 7500 model for the past 4 years and within the last year have been experiencing this flashing green light / shutoff symptom. The fan seems to function normally up to 30% speed, both exhaust and intake, but when speeding up to 40% capacity I'm met with the green light symptom. Resetting does not fix the issue, and I have just replaced the circuit board which did not remediate the problem. All wiring is good and proper voltage is reaching the fan unit. I'm wondering what my next step would be - possibly replacing the fan motor? Any and all recommendations are appreciated, cheers.