SMA SUNNY BOY 1700 User Manual

SMA SUNNY BOY 1700

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SB11_12_17-IEN094131 | IMEN-SB11_17 | Version 3.1

EN

PV Inverters

SUNNY BOY 1100 / 1200 / 1700

Installation Guide

Table of Contents

Questions and Answers:

M
Melissa WagnerAug 1, 2025
What to do if the red LED is continuously on in my SMA Inverter?
- J
  Jason SalazarAug 1, 2025
  If the red LED on your SMA Inverter is continuously illuminated, it indicates a ground fault in the PV generator or a defective varistor. The installer needs to fix the ground fault before you reconnect the string. Do not reconnect the faulty string. Close the Sunny Boy. It is also possible that one of the thermally monitored varistors is defective. In that case, check the varistors.
K
Kenneth GarrettAug 11, 2025
Why is the red LED continuously on in my SMA SUNNY BOY 1700 Inverter?
- M
  mario56Aug 11, 2025
  If the red LED on your SMA Inverter is continuously on, it indicates a ground fault in the PV generator or a defect in one or more of the varistors for overvoltage protection. The installer of the PV generator must fix the ground fault in the affected string before you reconnect it to the Sunny Boy. Do not reconnect the faulty string. You should also check the varistors.
M
Morgan LiAug 21, 2025
What to do if there is no conducting connection between connectors B and C in SMA Inverter?
- E
  Erika WalterAug 21, 2025
  If there is no conducting connection between connectors B and C in your SMA Inverter, the varistor is not working and needs to be replaced. SMA Solar Technology recommends replacing both varistors, which can be ordered directly from SMA Solar Technology.

SMA SUNNY BOY 1700 Specifications

General

Brand	SMA
Model	SUNNY BOY 1700
Category	Inverter
Language	English

Summary

Security

Appropriate Usage

Defines the intended use of the Sunny Boy as a PV inverter and system design guidelines.

Safety Instructions

Provides essential safety warnings regarding high voltages, heat, and foreign objects.

Installing the Device

Selecting the Mounting Location

Covers crucial safety and environmental conditions for choosing a mounting location.

Mounting with a Wall Mounting Bracket

Provides step-by-step instructions for mounting the unit using a wall bracket.

Electrical Connection

Overview of Connection Area

Connecting to the Public Grid (AC)

Details AC connection requirements, cable design, and safety precautions.

Communication Interfaces

Connecting the PV Generator (DC)

Covers DC connection requirements, adaptor usage, and module string specifications.

Commissioning the Sunny Boy

Display Operation

Blink Codes

Opening and Closing

Opening the Sunny Boy

Closing the Sunny Boy

Maintenance and Cleaning

Check Electronic Solar Switch for Wear

Troubleshooting

Red LED Continuously On

Checking PV Generator for Ground Fault

Provides steps to identify and resolve ground faults in the PV generator.

Checking Varistor Functionality

Guides on testing the varistors for proper functionality.

Decommissioning

Removing the Sunny Boy

Technical Data

Contact

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