AH-300NH4GHB - Instant water heater and water heater HISENSE - Free user manual and instructions

Product Type	Instantaneous Water Heater
Brand	Hisense
Model	AH-300NH4GHB
Power Supply	220-240 V, 50 Hz
Power Rating	3.5 kW
Water Flow Rate	3 L/min (at 25°C rise)
Temperature Range	30°C - 60°C
Dimensions (W x H x D)	300 x 200 x 100 mm
Weight	2.5 kg
Energy Efficiency Class	A
Installation Type	Wall-mounted, indoor
Min. Operating Pressure	0.5 bar
Max. Operating Pressure	10 bar
Water Connection	1/2 inch BSP
Safety Features	Overheat protection, anti-freeze, IPX4
Control Type	Mechanical dial
Housing Material	ABS plastic
Heating Element	Copper, unshielded
Warranty	2 years
Certifications	CE, RoHS

Frequently Asked Questions - AH-300NH4GHB HISENSE

What are the minimum electrical requirements for installing the Hisense AH-300NH4GHB?

The unit requires a 220-240 V, 50 Hz supply with a dedicated 16 A circuit breaker and proper grounding. Ensure the wire gauge is at least 2.5 mm².

Can I install the water heater outdoors?

No, this model is designed for indoor use only. It should be installed in a frost-free area to prevent damage.

What is the maximum water temperature it can deliver?

The temperature range is 30°C to 60°C. The actual temperature depends on the flow rate and incoming water temperature.

How do I clean or maintain the unit?

Periodically descale the heating element using a suitable descaling agent. Wipe the exterior with a damp cloth. Do not use abrasive cleaners.

What safety features does the AH-300NH4GHB have?

It includes overheat protection, anti-freeze function, and IPX4 water resistance. The unit also has a thermal cut-off to prevent boiling.

Is the water heater energy efficient?

Yes, it is rated energy class A, meaning it meets high efficiency standards. Instantaneous heaters are generally efficient as they only heat water on demand.

What should I do if the water heater leaks?

Turn off the power and water supply immediately. Check connections and ensure the unit is properly installed. Contact a qualified technician if the leak persists.

Can I use this water heater with a solar pre-heat system?

Yes, it can be used with pre-heated water, but ensure the incoming water temperature does not exceed 60°C to avoid damage.

What is the noise level during operation?

The unit operates quietly, typically below 45 dB, similar to a low hum. Most users find it unnoticeable.

How long is the warranty period?

Hisense offers a 2-year warranty for the AH-300NH4GHB. Registration may be required. Keep your purchase receipt.

USER MANUAL AH-300NH4GHB HISENSE

ConnectLife Home Appliance

WiFi Instruction

Note:

Read this owner's manual thoroughly before operating the appliance

Table of Contents

Welcome 3

System Operation Requirements ...... 3

A. Smartphone System Requirements 3
B. Wireless Router requirements 3
C. In-Home WiFi Network Connectivity Tips....4
D. Other Requirements and Precautions .... 4

WiFi Module Performance Parameters 5

How to install ConnectLife....5

How to add appliances and delete appliances.... 5

Timer and Holiday Function Introduction....6

Troubleshooting....6

About Software Services....8

Other instruction 9

Welcome

Thank you for your purchase! We're happy that you chose ConnectLife product, and we are confident that you'll be completely satisfied with your new Water Home Appliance for many years to come. ConnectLife proudly stands behind our products and welcome your suggestions and feedback that will help us to continue meeting your expectations.

We look forward to you sharing the positive experience you've had with our product and our service!

System Operation Requirements

A. Smartphone System Requirements

The following are the minimum specifications needed to successfully run the app on a smartphone:

Table 1 Smartphone requirements

Terminal device	Android	IOS
OS	Android 8 or higher	IOS 12 or higher
Resolution	1920*1080 or higher	960*640 or higher

B. Wireless Router requirements

Table 2: Wireless Router requirements

Standard	IEEE 802.11b/g/n
Frequency Range	2.402-2.483.5GHz
Security	128 bits WPA-PSK/WPA2-PSK
Output Power	802.11b: 11dBm(11Mbps)802.11g: 15dBm(54Mbps)802.11n: 11dBm(72.2Mbps)
Data Rate	802.11b: 11Mbps802.11g: 54Mbps802.11n: 72.2Mbps
Sensitivity	802.11b: 11Mbps802.11g: 54Mbps802.11n: 72.2Mbps
Modulation	QPSK+OFDM

Notice:

*Please try to use a certified 2.4G wireless router.

*The wireless router requirements are a general specification.

*Depending on the environment, there might be multiple WiFi access points available. It is important to ensure that the correct one is being used.

*A router firewall may have high security or parental controls configured, and these settings may block some required network ports for the device.

*The following network ports should be opened/whitelisted on your router:80/443/55020/55030(Check the router's user manual for instructions on configuring firewalls.)

* The WiFi module does not support a new Wi-Fi certified specification and non-standard Wi-Fi certification type.

C. In-Home WiFi Network Connectivity Tips

*Locate the home appliance as close to the wireless router as possible.

*If the WiFi signal strength is weak, the App and WiFi module may be disconnected depending on the Wi-Fi signal strength. Purchase a Wi-Fi repeater(range extender) to improve the Wi-Fi signal strength.

*Check that no metal objects are attached to the appliance, or otherwise interfering with the WiFi signal.

*Due to dynamic network connectivity request may time out. In this event, re-run the network.

*Due to dynamic network connectivity control processes may time out, App and product may display conflicting setting information. Reconnect to sync information.

D. Other Requirements and Precautions

* The smartphone must be connected with WiFi instead of 3G/4G/5G when it is paired to the home appliances for the first time;

* When using the Application, cellular data use may generate expenses if the mobile phone is connected with 3G/4G/5G data service;

* The internet connection may fail due to presence of any firewalls. If this is the case, it's recommended to contact your internet service provider;

* If your internet service provider requires an ID or a password to connect to the internet, you must enter your ID or password when connecting to the internet.

WiFi Module Performance Parameters

Table 3: Internal WiFi module Performance Parameters

WiFi Model	AEH-W4G2(RB)
Transmission frequency	2.4GHz
Transmission power	≤19dBm
Power supply	5V/450mA
Operating temperature	-10°C~70°C
Operating humidity	20%~85%

How to install ConnectLife

Search for the ConnectLife application from the Google Play Store or Apple App Store on a smart phone. Follow instructions to download and install the application. Or scan the below QR code.

Android QR code

iOS QR code

How to add appliances and delete appliances

Add appliances

Add appliances

1) Open the ConnectLife app.
2) Click ‘+’ in the lower right corner → ADD Device → select your appliance.
3) Follow the instructions of STEPS → NEXT → go to Settings of smartphone, connect smartphone to the device(start with 'HIS-') → back to app and click SETTING → select wireless router in the list and input the password, then waiting for pairing.

Notice:

Before pairing your device, please make sure your device is connected to the Internet through a wireless router. The smartphone and the appliance can not be paired through 3G/4G/5G cellular data service.

For Heat Pump Water Heater:

1) Power off the heat pump, long press On/Off button and Down button at the same time for 3 seconds, then the WiFi light will flash.
2) Connect to Wi-Fi according to tips displayed on the APP. When connection is successful, the WiFi light will be on.

Delete appliances

3) Open the ConnectLife app.

4) Go to menu in the bottom column → Settings → APPLIANCE SETTINGS, select appliance and click Unpair.

Timer and Holiday Function Introduction

User can set them in ConnectLife app as below.

1) Open the ConnectLife app.
2) Click Timing or Holiday icon to set by follow the instructions.

Timing: User can use this function to turn on/off the unit at special periods, such as time of cheapest electricity. Also days of week, mode, target temperature can be set.

Holiday: User can set a period in which user is not at home with this function. By doing this, the timer will be invalid during the setting period and when user come back to home after the setting period timer will be valid automatically.

* The priority of Holiday Function should be higher than Timer. When the Holiday Function is executed, the timer function becomes invalid. When the Holiday Function ends, the timer function will be re executed according to the settings.

Troubleshooting

1. Cannot register to become a member

The reason:

1) The account name or password is wrong;
2) Incorrect e-mail format ;
3) Can't receive a code from email to active account

Solution:

1) Please follow the prompt;
2) Register by correct e-mail format;
3) Please find email in your Mail garbage box or other box Or Contact local service for help;

2. Cannot log into the account

Reason:

1) Network anomaly;
2) Account password is wrong;
3) The account isn't active;

Solution:

1) Make sure connection is ok;
2) Input correct password;
3) Check whether the code in registered mailbox has been used;

3. Home appliance cannot be paired with the App

Reason:

1) Home appliance is not powered on;
2) Wireless communication signals are weak because the wireless router is out of range;
3) Wireless network cannot be connected to the Internet;
4) The appliance is not in "Pair" mode;
5) APP works abnormally;
6) Incorrect password of wireless router;

Solution:

1) Ensure that the device is powered;
2) Adjust location of wireless router or the appliance;
3) Contact your local Internet Service Provider (ISP);
4) Please refer to 'Add appliances'
5) Close WiFi of smartphone and then re-open it Or Restart the smartphone;
6) Input correct password of wireless router;

4. The home appliance is offline all the time

Reason:

1) The home appliance is not powered on;
2) Network anomaly;
3) The home appliance operates abnormally;
4) App communication is abnormal;

Solution:

1) Ensure that the device is powered;
2) Adjust the location of wireless router or of the appliance or Contact your local Internet Service Provider (ISP);
3) Please unplug the unit for 10 seconds and power on again;
4) Restart the App, or dis-able and re-enable WiFi on the smartphone;

5. The appliance doesn't respond to remote control

Reason:

1) The home appliance is not powered on;
2) The wireless router is not powered on;
3) Network anomaly;
4) App communication is abnormal;

Solution:

1) Ensure that the device is powered;
2) Ensure that the wireless router is powered;
3) Adjust location of wireless router or the appliance or Contact your local Internet Service Provider (ISP);
4) Restart the App, or dis-able and re-enable the WiFi on the smartphone;

6. The App closes unexpectedly

Reason:

1) The smartphone app suddenly shuts down due to memory limitations of the smartphone;
2) Due to a network error or server load, the connection is unstable;
3) Android or iOS system update;

Solution:

1) Close any unnecessary apps that may be running in the background before using app;
2) Try to log in again at a later time;
3) Please contact the service;

7. Power consumption statistic function has no data

Make sure there is a power quantity module in your heat pump, or Power consumption statistic will not show data.

About Software Services

The Software services include app software update service and wireless communication module software update service. The software service period is 5 years from the product production date.

The service period is not static, we will extend it according to the actual situation and update it in this user manual.

Connectlife's introduction, privacy, vulnerabilities, etc. can be accessed https://en.connectlife.io/.

Other instruction

For air conditioning products, ambient temperature sensor and ambient humidity sensor can detect the temperature and the humidity of the space where the home appliance is located. The temperature and humidity values are used for home appliance control to create a comfortable environment for users.