After-Sales Service


Thank you for choosing " GREEF"  new energy products. We always provide a comprehensive range of services before, during and after sales. "GREEF NEW ENERGY guarantee as follows:


I. Warranty period:


Permanent Magnet Generator is Three years warranty.

Vertical Axis Wind Turbine is Three years warranty.

Horizontal Axis Wind Turbine is Three years warranty.


(1) The warranty period is start from the date of on the guarantee card.

(2) During the warranty period, the cost of maintenance services caused by our product's quality problems, be borne by our company, do not charge a fee from customers; if any maintenance outside the warranty period, our company will charge a fee from customers. 

(3) During the warranty period, the freight of maintenance service caused by our product's quality problems, be borne by our company, do not charge a fee from customers; if not under warranty or not quality problem, all the freight charges by the customer. 


II. Warranty:

We will provide the approved products for all customers to provide maintenance services. But in order to enable the two sides can enjoy fair Treatment, for the following reasons for failure or damage, we will not provide free warranty. 

(1) When beyond the warranty period;

(2) Disasters, leaving damage to the product caused by accident;

(3) The user-transport, carrying, falling, collision and damage caused by the failure;

(4) The product as user-modification, and other failures caused by improper use and damage;

(5) The users’ un-normally operation, like test with other equipment, and caused by the failure;                      

(6) Customer open and repair device without our guide and cause damage. 


III. Maintenance services implementation:                                                        

(1) If your machine meet any problems, please take photos and videos send to our service department and explain the details of the problems. or send to the sales which you contact before.

(2) Our engineers will check the problem, and give you suggestion to solve the problem. Most of the small problem can be solved after engineer guide.

(3) If we find that any parts need to be replacement, we will send the parts to customers. Quality problem we afford all the charge within warranty period.

(4) If a major problem in our products, we will send engineers to provide appropriate support.


 IV. Fees:

During the After-sale process, if we need charge fee form customers, the fees = replacement parts + technical service fees + freight + labor costs, we will provide timely material Price (cost).





After-sales Department