687278
38
Zoom out
Zoom in
Previous page
1/52
Next page
Troubleshooting SMA Solar Technology AG
38 SB11_12_17-IEN100132 Installation Guide
9.1.2 Checking the Function of the Varistors
Varistors are wearing parts. Their functioning becomes restricted through aging or due to repeated
responses as a result of overvoltages. It is therefore possible that one of the thermally monitored
varistors has lost its protective function, and thus the red LED is lit.
Check the function of the varistors as described below:
1. Open the Sunny Boy as described in section 7.1 "Opening the Sunny Boy" (page32).
2. With the aid of a multimeter, determine for both
varistors in the installed state whether a conductive
connection exists between connectors B and C.
Position of varistors
You can determine the position of the varistors with the help of the illustration below.
Observe the following allocation of the
terminals:
Terminal A: outer terminal (varistor
connection with loop [crimp])
Terminal B: middle terminal
Terminal C: outer terminal (varistor
connection without loop [crimp])
Result Action
☑There is a conducting connection. There is probably another fault in the Sunny Boy.
Close the Sunny Boy as described in section
7.2 "Closing the Sunny Boy" (page33).
Contact the SMA Serviceline (see section
13 "Contact" (page47)).
38


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for SMA Sunny Boy 1100 at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of SMA Sunny Boy 1100 in the language / languages: English as an attachment in your email.

The manual is 2,17 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info