Mighty Mule R4211 Repair Service


If your Mighty Mule R4211 is broken, you’ll want to keep reading. Our repair process is simple and we can help you avoid high replacement costs.

Acknowledgment of Order * 

SKU: R4211 Category:


This is a repair service for your defective Mighty Mule R4211 control board. If your FM500/502, FM560/562, FM600/660 gate opener exhibits any of the following conditions, we can help.

-does not work on 18 Vac and the power light is off, but it functions fine with a charged battery connected.

-completely inoperable and the power light does not come on.

-works on ac, but not during a power outage (charging problem).

-operates well on solar, but not at night (same as above).

How do I get mine repaired?

Place an order and we’ll send a shipping label to your email. Carefully package your part and send it.

Fast repair turnaround

A qualified technician will complete the repair within One business day of delivery to us.


This failure is caused by surges and for this reason, we do not offer a warranty. Rest assured, you will save money (this is better than replacing) and we will connect a battery to verify that it is charging before we return it to you.

Additional information

Weight 1 lbs
Dimensions 9 × 6 × 2 in

Mighty Mule



Customer Reviews

Based on 2 reviews
Two R4211 cards repaired

Website good with pictures. Shipping Easy to do going & coming. Fast repair/ turn around. Prices less than half dealing with Mightymule. MM has changed their design concept, not sure I will ever tr. great experience.

Thank you for taking the time to leave feedback, we do appreciate it!

R4211 circuit board.

Timely repair service, unit works great