Technical support services

Service Terms&Conditions

(1) Product coverage: Including YAJUN solar inverter, YAJUN storage inverter, YAJUN monitoring device, YAJUN monitoring software.

(2) Country and Region coverage: United States.

(3) Warranty claim: in general, serial number(S/N）must be provided in order to claim warranty. Basically, the standard warranty period is 10 years from the date of installation, and no more than 5 and half years from the date of delivery from YAJUN factory.

(4) Please store the original purchasing invoice/ installation documents or receipts carefully. Customers need to present it for warranty claim if required.

(5) Warranty commitment validity: strictly according to the formal sales contract signed with YAJUN. If there is no sales contract signed, then terms & Condition on the Growatt Warranty Card,

YAJUN Cervice Commitment

(1) Product coverage: Including YAJUN solar inverter, YAJUN storage inverter, YAJUN monitoring device, YAJUN monitoring software.

(2) Country and Region coverage: United States.

(3) Warranty claim: in general, serial number(S/N）must be provided in order to claim warranty. Basically, the standard warranty period is 10 years from the date of installation, and no more than 5 and half years from the date of delivery from YAJUN factory.

(4) Please store the original purchasing invoice/ installation documents or receipts carefully. Customers need to present it for warranty claim if required.

(5) Warranty commitment validity: strictly according to the formal sales contract signed with YAJUN. If there is no sales contract signed, then terms & Condition on the Growatt Warranty Card,

Response Time Commitment

RAJA service commitment

(1) The service hotline for YAJUN local service center varies, please check our local service center in your country/region. The service hotline in Shenzhen headquarter is +86 139 2464 0189 . Our service hotline offering general inquiry, technical support, etc.

(2) Service email address: nestor@rajaev.com. Customer is suggested to contact YAJUN service representative in your country/region directly.

(3) Warranty period and service mode. We offer different service solutions for different product, see details on below table
Note: If warranty period was specified on sales order, then warranty period would obey to sales order.

(4) Installation and commissioning：YAJUN don’t offer installation service, don’t offer onsite debugging service for monitoring device. YAJUN can offer onsite commission service for big scale plant (inverter capacity＞500kw)
Freight cost

Other Important Notice

(1) Customers can contact YAJUN via phone, email, instant messaging App, etc. Customers are required to following YAJUN’s instruction to fill in a Warranty Claim Form and send to us via  email, or fill in the Warranty Claim Form online via YAJUN Online Service System, as instructed by YAJUN. Here is the basic information required for warranty claims:  

1) Product Model, Serial Number. 

2) System configuration details (Panels per string, number of strings, parallel or in series  scheme, grid category, grid voltage rating, grid frequency rating). 

3) Fault description (Error message or error code on LCD display. Pictures, or other fault  information) 

Note: YAJUN reverse the right to reject the warranty claims without the necessary  information. In this case, it’s the customer to responsible for the loss or any other  consequence. 

(2) Standard warranty service is provided for products with a valid warranty. It’s excluded from  warranty are damages due to: 

• Breaking the product seal / opening the casing without permission from YAJUN

• Transport damage

• Incorrect installation or commissioning; For example, incorrect DC or AC pole wiring /  connection, loose DC or AC pole wiring / connection, which lead to the damage of inverter. 

• Failure to observe the user manual, the installation guide, and the maintenance regulations

• Unauthorized Modifications, changes, or attempted repairs

• Incorrect use or inappropriate operation

• Insufficient ventilation of the device

• Failure to observe the applicable safety regulations

• Force majeure (e.g., lightning, overvoltage, storm, fire) For warranty invalid products, YAJUN would charge for service, example, spare parts cost,  labor cost for products. Or according to maintenance

contract, if there is maintenance contract  signed.

(3) The above terms & conditions (together with the warranty card in product packing, and the  affixed warranty documents) had described all responsibilities for products YAJUN sold, it  removes the other apparent & hint guarantee. Without formal document confirmation,  YAJUN would not responsible for any responsibilities beyond of this warranty term. When  product is in use under warranty, YAJUN responsibility is limited to service replace and  service repair according to the warranty terms & conditions, no further assurance, obligation,  or responsibility. If specified by law, YAJUN would perform in accord with the law. 

(4) OEM products are not applicable with this warranty terms & conditions. Warranty for OEM  product should comply with the contract.

Please note YAJUN reverse the ultimate explanation right on this service commitment