4CHR3 - Smart Home Sonoff - Free user manual and instructions

Product Type	4-Channel Smart Wi-Fi Switch
Brand	Sonoff
Model	4CHR3 (also 4CHPROR3)
Dimensions	145 x 90 x 34 mm
Weight	Less than 1 kg
Power Supply	100-240 V AC, 50/60 Hz (PRO version: also DC 9-23 V)
Maximum Load per Channel	10 A / 2200 W
Maximum Total Load	16 A / 3500 W (4CHR3); 40 A / 8800 W (4CHPROR3)
Connectivity	Wi-Fi IEEE 802.11 b/g/n 2.4 GHz
Operating Systems	Android and iOS
Operating Temperature	-10 °C to 40 °C
Material	PC V0 (flame retardant)
Radio Frequency (PRO model only)	433.92 MHz (remote control)
Main Functions	Remote control via app, scheduling, voice control, family sharing, smart scenes, lock, interlock, power-on state, camera addition, LAN control
Mobile App	eWeLink (free)
Installation	Recommended height less than 2 m
Maintenance and Cleaning	Disconnect before cleaning; use a dry, soft cloth; do not use abrasive products
Safety	Cut off power before installation; call a qualified professional for wiring
Spare Parts and Repairability	Contact the seller or a qualified professional; no spare parts provided by the manufacturer
Warranty	Consult the complete manual

Frequently Asked Questions - 4CHR3 Sonoff

Why is my device staying offline?

After adding, the device may take 1-2 minutes to connect. If the problem persists, check the blue Wi-Fi LED indications: if it flashes once per second, Wi-Fi is not connected (incorrect password, too much distance, interference, 5G Wi-Fi not supported, MAC filtering enabled). If it flashes twice per second, the device is connected to Wi-Fi but not to the server (unstable network).

How to pair the device with the eWeLink app?

After turning on the device, it enters quick pairing mode (Touch): the Wi-Fi LED flashes twice quickly then once slowly. Open the app, tap '+', select 'Quick Pairing' and follow the instructions. If quick mode does not work, use compatible mode (see next question).

How to use compatible pairing mode?

Press and hold the pairing button for 5 seconds until the Wi-Fi LED flashes rapidly. In the app, select 'Compatible Pairing Mode', connect to the 'ITEAD-******' Wi-Fi with password '12345678', then return to the app and press 'Next'.

How to restore factory settings?

Delete the device in the eWeLink app: this automatically restores it to factory settings.

How to change Wi-Fi network?

Press and hold the pairing button for 5 seconds until the Wi-Fi LED flashes in a long-short-short cycle. The device returns to quick pairing mode. Then follow the standard pairing procedure with the new network.

How to pair an RF remote control (4CHPROR3 only)?

Press and hold the button of the channel to pair for 3 seconds until the Wi-Fi LED turns red and flashes once quickly, then release. Briefly press the button on the remote control. If the LED flashes once, pairing is successful.

How to unpair an RF remote control?

Press and hold the button of the channel to delete for 5 seconds until the Wi-Fi LED turns red and flashes twice quickly, then release. Briefly press the button on the remote control. If the LED flashes once, the code is cleared.

What types of loads can I connect?

Each channel supports up to 10 A / 2200 W (resistive). Total must not exceed 16 A / 3500 W for the 4CHR3 and 40 A / 8800 W for the 4CHPROR3. Suitable for lamps, fans, etc. Check compatibility with inductive loads.

Can I use 5 GHz Wi-Fi?

No, the device only supports 2.4 GHz Wi-Fi (IEEE 802.11 b/g/n). Ensure your router broadcasts on this frequency.

What do the different Wi-Fi LED flashes mean?

The blue LED indicates status: long-short-short flash = quick pairing mode; rapid flash = compatible mode; solid on = connected; short flash once = router not found; twice = connected to router but not to server; three times = updating.

USER MANUAL 4CHR3 Sonoff

4-gang Wi-Fi Smart Switch

· 中文 1-7
• Deutsch ---- - 15-21
· Français---- 29-35
• Русский язык----43-50
· FCC Warning---- 51

· English----8-14
- Español---- -22-28
· Italiano---- 36-42

使用说明

1. 断电

确保线路接入无误。

1. 下载 “易微联” APP

1. 上电

Operating Instruction

1. Power off

To avoid electric shocks, please consult the dealer or a qualified professional for help when installing and repairing!

2. Wiring instruction

Light fixture wiring instruction:

Socket wiring instruction (Don't need to connect if no ground wire):

Make sure all wires are connected correctly.

3. Download the eWeLink APP

Android™ & iOS

4. Power on

After powering on, the device will enter the quick pairing mode (Touch) during the first use. The Wi-Fi LED indicator changes in a cycle of two short and one long flash and release.

The device will exit the quick pairing mode (Touch) if not paired within 3mins. If you want to enter this mode, please long press any pairing button for about 5s until the Wi-Fi LED indicator changes in a cycle of two short and one long flash and release.

5. Add the device

Tap "+" and select "Quick Pairing", then operate following the prompt on the APP.

Compatible Pairing Mode

If you fail to enter Quick Pairing Mode (Touch), please try "Compatible Pairing Mode " to pair.

1 Long press any pairing button for 5s until the Wi-Fi LED indicator changes in a cycle of two short flashes and one long flash and release. Long press any pairing button for 5s again until the Wi-Fi LED indicator flashes quickly. Then, the device enters Compatible Pairing Mode.
2 Tap "+" and select "Compatible Pairing Mode" on APP.

Select Wi-Fi SSID with ITEAD-***** and enter the password 12345678, and then go back to eWeLink APP and tap "Next". Be patient until pairing completes.

Specifications

Model	4CHR3/4CHPROR3
Input	4CHR3: 100-240V AC 50/60Hz4CHPROR3: 100-240V AC 50/60Hz (DC: 9-23V)
Max. Load	4CHR3: 10A/2200W/Gang 16A/3500W/Total4CHPROR3: 10A/2200W/Gang 40A/8800W/Total
RF	433.92MHz
Wi-Fi	IEEE 802.11 b/g/n 2.4GHz
Operating systems	Android & iOS
Working temperature	-10°C~40°C
Material	PC V0
Dimension	145x90x34mm

4CHR3 does not support the remote controller with 433.92MHz.

Product Introduction

The device weight is less than 1 kg.

The installation height of less than 2 m is recommended.

Wi-Fi LED indicator status instruction

Wi-Fi LED indicator status	Status instruction
	Quick Pairing ModeFlashes (one long and two short)
Keeps on	Device is connected successfully
Flashes quickly	Compatible Pairing Mode
Flashes quickly once	Unable to discover the router
Flashes quickly twice	Connect to the router but fail to connect to Wi-Fi
Flashes quickly three times	Upgrading

Features

This device is a 4-Gang Wi-Fi smart switch with self-locking, interlock and inching that allow you to remotely turn on/off connected devices via your smartphone, schedule on or off, share to your family to control together.

Remote Control Single/Countdown Timing Voice Control Share Control

Smart Scene

Self-locking

433MHz Remote Control LAN Control Power-on State

Camera Linking

Inching Interlock

RF Remote Controller Pairing

The 4CHPROR3 supports the remote controller with 433.92MHz frequency brand to turn on/off, and each channel can learn it independently, which is local short-range wireless control not Wi-Fi control.

Pairing Method:

Long press the channel switch button to be paired for 3s until the Wi-Fi LED indicator turns red and "quickly flashes once" and release, then short press the button to be paired on the remote control. If the Wi-Fi LED indicator turns red and "quickly flashes once", it indicates that the pairing is successful.

Clearing Method:

Long press the channel switch button to be cleared for 5s until the Wi-Fi LED indicator turns red and "quickly flashes twice" and release, then short press the button to be cleared on the remote control. If the Wi-Fi LED indicator turns red and "quickly flashes once", it indicates that the code is cleared.

Switch Network

If you need to change the network, Long press the any pairing button for about 5s until the Wi-Fi LED indicator changes in a cycle of two short and one long flash and release, , then the device enters quick pairing mode and you can pair again.

Factory Reset

Deleting the device on the eWeLink app indicates you restore it to factory setting.

Common Problems

Q: Why my device stays "Offline"?

A: The newly added device needs 1 – 2mins to connect Wi-Fi and network. If it stays offline for a long time, please judge these problems by the blue Wi-Fi indicator status:

1. The blue Wi-Fi indicator quickly flashes once per second, which means that the switch failed to connect your Wi-Fi:

① Maybe you have entered a wrong Wi-Fi password.
② Maybe there's too much distance between the switch your router or the environment causes interference, consider getting close to the router. If failed, please add it again.
③ The 5G Wi-Fi network is not supported and only supports the 2.4GHz wireless network.
④ Maybe the MAC address filtering is open. Please turn it off.

If none of the above methods solved the problem, you can open the mobile datanetwork on your phone to create a Wi-Fi hotspot, then add the device again.

1. Blue indicator quickly flashes twice per second, which means your device has connected to Wi-Fi but failed to connect to the server.

Ensure steady enough network. If double flash occurs frequently, which means you access an unsteady network, not a product problem. If the network is normal, try to turn off the power to restart the switch.

Betriebsanweisung

1. Ausschalten

Changes or modifications not expressly approved by the party responsible for compliance could avoid the user's authority to operate the equipment.

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Note:

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help.

Hereby, Shenzhen Sonoff Technologies Co., Ltd. declares that the radio equipment type 4CHR3/4CHPROR3 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address:

https://sonoff.tech/usermanuals

TX Frequency:

WiFi: 2412-2472MHz

RX Frequency:

WiFi: 2412-2472MHz SRD: 433.92MHz

Output Power:

15.55dBm

16.3dBm(802.11b), 17.16dBm(802.11g), 17.38dBm(802.11n20)

Shenzhen Sonoff Technologies Co., Ltd.

1001, BLDG8, Lianhua Industrial Park, shenzhen, GD, China

ZIP code: 518000

Website: sonoff.tech

MADE IN CHINA