FAQs

SunGoldPower is a renewable energy company that was founded by a famous engineer in 2010. We are committed to providing green power solutions with solar inverter, low frequency inverter, solar panel and other green energy products. Each SunGoldPower product is manufactured according to the highest quality standards.

With continuous improvements and innovations, SunGoldPower's inverter series can be widely used for indoor and outdoor life- house, business, RV system, trailer or boat application, which is perfect for your off grid system or an emergency backup supply. The high quality SunGoldPower inverters will improve your mobile living and outdoor life.

SunGoldPower will do everything possible to ensure that each of our customers has a positive shopping experience. We have gained popularity with excellent products and successively cooperated with buyers and traders in Europe, America, Australia, and Southeast Asia. We are looking forward to forming successful business relationships with new clients around the world in the near future.

We have the specification/FAQ and user manual on every product page, you can find more information about each product. If you still haven't found the answer, you can submit your question on the product page, or send an email to sales@sungoldpower.com.

You can find the user manual on every product page or visit User Manual online in the support area.

You can sign up to our newsletter on the footer of the website.

You can order goods through sungoldpower.com without even having to register! We accept major credit and debit cards, and secure payment option PayPal is supported too. We also accept wire transfer and Western Union payments.

Most of our products have no minimum order requirements, so you can shop for retail products at wholesale prices! Wholesalers can shop big and get even larger discounts.

You can contact us through Wholesale on the footer of the website, let us know how you will work with us and you estimate sales/month. We will contact you as soon as possible.

We're so sorry to hear that you're not going to move forward with your order. If you need any help about this, please contact our email sale@sungoldpower.com with your order number on hand.

Please email us right away at sales@sungoldpower.com indicating your Order Number so we can assist you quickly. We will check your order in our system and if it still hasn’t been processed yet, we can still make changes. Incorrect shipping address: Please contact us right away. We process each order 3 to 5 working days, so if your order/s happens to be dispatched already, we won’t be able to grant your request. Incorrect size/model: Given that the item is already shipped out, we can't make amends for it. Once you receive the product, please send us an email at sales@sungoldpower.com stating that you have received it. We will let you ship it back to us so we can exchange it for the correct item that you want. Please note that the shipping cost is shouldered by the receiver.

We provide free shipping in most places in the United States. But remote places and island areas need to pay for the shipping cost, such as: Hawaii, Puerto Rico, Alaska, etc.

We need 3 to 5 working days to process the order, and usually 6-10 days later you will receive your products. The shipping is delayed for some objective or uncontrolled reasons. We will notice our customers ahead of delays.

Sorry that we can not ship to PO box, please offer the physical address to us. Thanks a lot.

Sorry that we can not 100% guarantee that your order will be delivered on a specific date since the carrier is a third party. Sometimes a weather or operational delay could impact your delivery date. But we will we'll do our best to target your delivery date.

It is recommedn that to contact us by sales@sungoldpower.com before you place the order. So we can make sure if we can meet your requirement and make a note in our system.

As soon as your order is shiped, we'll send a shipping confirmation email with tracking number that you can use to keep track of your package.

Once you place the order, we will process the order in 3 to 5 working days. As soon as your order is shiped, we'll send a shipping confirmation email with tracking number that you can use to keep track of your package. Please remind that the delivery may take longer during/after holidays or severe weather conditions.

If you're having trouble with your tracking information, please contact us by sales@sungoldpower.com.

Our products come with 12 months warranty, you can find the details on our page warranty & return.

We're so sorry that your product arrived in less than perfect condition. We are willing to help you resolve this issue right away and we need to know a bit of information on your order as well as the issue of your product. Please contact us by emailing sale@sungoldpower.com with your order number.

Please keep the original package if you need to return the product. It is the easiest way to get your products back to us. Thanks a lot.

Normally it will take 1-2 weeks to process returns. We'll refund your original form of payment if we receive the return product. The money may take 3-5 business days to go back to you if the card is a credit card, but if it's a debit card normally it will be processed within 7-10 business days, and sometimes it depends on bank processing time.

If you think the your products aren’t right for you within the return period, we're happy to help troubleshoot or initiate the return process. Please contact us at sales@sungoldpower.com.

If the screen displays "AC abnormal", it may be caused by three reasons:
1. Do you connect the inverter to the grid or generator? If not, it will display "AC abnormal" when the inverter operates under the inverter mode.   
 2. If yes, what is the voltage of the grid or generator? If the voltage isn't in the range in which the inverter can be accepted, it will also show "AC abnormal"   
 3. In battery priority mode(SW5=1), if there is an AC input when the battery power is sufficient, the AC mains voltage can also be detected, but the display will still show "AC abnormal".

If the inverter is not charging the battery, what is your setting of SW5?If SW5=0, please make sure that the following settings are correct:
A. Please switch SW4 to1, and the AC input is correct
B. Please choose the switch setting of the battery type selector according to your battery type, and do not choose 0. The charge current can be adjusted from 0%-100% via a liner switch at the right of the battery type selector, please make sure it is not 0%
C.If you switch SW5 to 1 (battery priority mode), and if the battery voltage is higher than 12.5V/25V/50V, the inverter cannot be transferred to the mains for charging, so the battery is not charged.

Please do the following test for troubleshooting:
A. Only connect the inverter to the full capacity battery (no other cables connect to the inverter)
B. Set all DIP switch settings at 1 position
C. Turn on the inverter to see if the inverter alarm can disappearIf your inverter still can't work, please send us a video for tech analysis. The video should include the following information
a. The inverter battery terminal voltage on the multimeter
b. The inverter all DIP switch setting
c. The inverter LED light and LCD display4. The inverter label and inverter issue
d. Test the inverter power board mosfet(refer to the video) and show us all the reading.
https://drive.google.com/file/d/1IqyVW6N8WqpY3t5ZB8Bqm_2QtDf6mg1U/view?usp=sharing

Please disconnect all cables of the inverter and open the shell to send us the burned parts pictures for checking

Please make sure the inverter battery terminal senses the correct battery voltage (you can use a multimeter to test the inverter battery terminal voltage), then the inverter can be turned on

This requires upgrading software, please send us your inverter label, U1, and U2 version (refer to manual page 35)to match the software

The BP means this inverter doesn't detect the suitable battery voltage, please check the following information for troubleshooting
A. Please check if your battery goes to protection status
B. Please test if there is a suitable voltage on the inverter battery terminal. If yes, please test the main board battery fuse status and check whether the main board BAT terminal appears short-circuit.
C. If there is a suitable voltage on the inverter battery terminal and no damage on the main board fuse and BAT terminal, please send us a video for tech analysis. The video should include the following information
a. The inverter label
b. The inverter battery terminal voltage on a multimeter
c. The inverter LCD display and LED light.

Please set your battery type to user-defined to fix the 61 code for a try

Please check if t the wire connection between the remote board and the control board appears loose. If not loose, please send us your inverter label to follow up.

Please confirm if the 09 code persists in the following situation:
A. When the inverter only connects to the PV and after restart the inverter
B. When the inverter only connects to the battery and after restart the inverter
C. When the inverter only connects to shore power and after restart the inverter
 Please feed back your testing with the inverter label to us

Connect the inverter only to the battery and turn on the inverter, press the two middle buttons (up and down) at the same time for more than 3 seconds, and the inverter will make a beeping sound and a white frame will appear in the middle. Then turn off and restart the inverter

Please download the software in the below link
https://drive.google.com/file/d/1vduX6-TVr5fKuNFXUOK6QtUD5v73zpv9/view?usp=drive_link

Please use the multimeter to measure if the voltage on the inverter PV terminal is in the range of inverter MPPT range