Repairs & Service

If you are experiencing trouble with your drive or motor you are welcome to contact our technical support department at (818) 700-8600.  You may also email us at  If you need to return a drive or motor for warranty or non-warranty repair you MUST obtain an RMA number prior to shipping the item to us. 

Please complete the RMA form below and you will be contacted within 24 (business) hours with your RMA number.  Our warranty is detailed below the RMA form.

Please complete the following form to receive an RMA number:

Bill Information

Ship to: (If not the same as Billing Information)


Do you require expedited service? No Yes (Additional fee required)

Item #1:

Item #2:

Item #3:

Item #4:

(All items MUST have a Servo Dynamics serial number to receive warranty work.)

Shipping - Non-warranty work please complete

Preferred Shipper

Payment: Pre-pay (Add to invoice) Collect – Account number


Payment terms must be arranged prior to RMA issue for all non-warranty work.
You will be contacted for your payment information.

I Agree – By clicking send you agree to all terms and conditions.

- You will be contacted within 24 hours with your RMA number and any other instructions required.
- RMA valid for 30 days after issue date.
- Items receiving warranty work, original invoice MUST be paid in full prior to any warranty work being done.
- You can contact us Monday through Friday from 8:00 a.m. to 5:00 p.m. (818) 700-8600 or

Servo Dynamics Limited Warranty

All Servo Dynamic controllers are warranted against defects for a period of 1 (one) year after purchase date.  Any controller repaired within the warranty period will be replaced or repaired at the sole discretion of Servo Dynamics.  The customer is responsible for returning the defective controller to Servo Dynamics.  Servo Dynamics will return the repaired controller at our cost, domestic ground shipping only.  Expedited shipping is the responsibility of the customer.  International shipping is the responsibility of the customer.

Warranty is void when damage is caused by: Neglect, abuse, excessive dirt, unauthorized modifications, overloading, or improper operation.  Removal of the Servo Dynamics serial number will also void the warranty.

Warranty repaired controllers have a 6 month warranty on the repair work performed or continue with the original warranty, whichever is longer.   

Non-warranty repairs have a 6 month limited warranty on the parts and work performed for the repair.  Customer is responsible for all shipping on non-warranty repairs.  All non-warranty repair items are subject to a diagnosis fee of $75 to $150.  50% of the diagnosis fee will be deducted from the cost of the repair or the purchase of the new unit.

You must first obtain an RMA (Return Material Authorization) number from Servo Dynamics for both warranty and non-warranty repairs.