User Manual for Amazon Basics Mini Electric Tankless Water Heater
Quick guide for the Amazon Basics Mini Electric Tankless Water Heater. Includes installation requirements, wiring specifications, troubleshooting steps, and error code explanations.
Quick answers from the manual
Quick answer
- The manual provides installation requirements (vertical mounting, 2.5mm² wiring, >32A breaker) and troubleshooting steps for power, heating, and error codes (E1, E2). p. 1, 2
Key actions
- Install the water heater vertically. p. 1
- Clean the water turbine if the unit does not heat. p. 2
Problems and fixes
Over-temperature; let cold water flow or check temperature sensor.
p. 2Heating tube or circuit board damaged; replace.
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Error codes
| Code | Meaning | Action | Pages |
|---|---|---|---|
| E1 | Over-temperature or sensor issue | Let cold water flow or check/replace sensor | p. 2 |
| E2 | Heating tube or circuit board damaged | Replace heating tube or circuit board | p. 2 |
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Wire cross-section | 2.5mm² | Required for kitchen/bathroom/toilet installation | p. 1 |
| Circuit breaker | > 32A (C32) | Minimum rating for the circuit breaker | p. 1 |
Where to find it in the PDF
- Installation requirements p. 1
- Troubleshooting and Error Codes p. 2, 3
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This manual provides essential installation and troubleshooting information for the Mini Electric Tankless Water Heater. Key requirements include vertical installation, specific wire cross-sections, and circuit breaker ratings. If you encounter issues, refer to the troubleshooting section for power, heating, and error code solutions.
Installation requirements
Proper installation is critical for the safe and efficient operation of the water heater:


- Orientation: The water heater must be installed vertically. Do not install it horizontally.
- Wiring: Use a wire cross-section of 2.5mm² for installations in kitchens, bathrooms, or toilets.
- Circuit Breaker: The circuit breaker switch must be larger than 32A (C32).
- Pipe Length: The water pipe connected to the water outlet should not exceed 3 meters to maintain adequate water pressure.
- Water Tower: If using a water tower in rural areas, the height must be at least 10 meters to ensure sufficient water pressure for the heater to start.
Troubleshooting
If the unit is not functioning correctly, check the following:
- Power light is off: Check if the power supply is energized. If it is, the internal overheat protection switch may have tripped, or there may be a circuit board failure.
- Power light is on but not heating: Ensure water is flowing through the heater. If water pressure is sufficient but the unit does not heat, the turbine inlet may be blocked. Remove and clean the turbine.
- Starts without heating: If the power lamp shows numbers but the temperature does not rise, the water flow may be too large (try reducing it) or the heating tube may be damaged.
- No water at outlet: Check for water supply issues, low pressure, closed inlet valves, or a blocked water turbine.
Error codes
The device may display error codes to indicate specific faults:
- E1: Indicates over-temperature. Allow cold water to flow through the heater for a while. If the issue persists, the temperature sensor may be damaged or disconnected. Disconnect power, check the sensor wiring, or replace the sensor.
- E2: Indicates that the heating tube or circuit board is damaged. These components will need to be replaced.
Practical help
Common problems
Check power supply, internal overheat protection switch, or circuit board.
Check for water flow, clean the water turbine, or replace the heating tube.
Over-temperature; let cold water flow or check/replace the temperature sensor.
Heating tube or circuit board is damaged; requires replacement.
Check water supply, water pressure, ensure inlet valve is open, or clean the water turbine.
Before use
- Ensure the unit is installed vertically.
- Use a wire cross-section of 2.5mm².
- Use a circuit breaker larger than 32A (C32).
- Ensure the outlet pipe length does not exceed 3 meters.
- If using a water tower, ensure it is at least 10 meters high.
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Specs in practice
- Wire cross-section
- 2.5mm² is required for safe operation in kitchens/bathrooms.
- Circuit breaker
- Must be larger than 32A (C32) to handle the electrical load.
- Outlet pipe length
- Recommended max 3 meters to prevent pressure drops.
Images and diagrams
- The installation diagram shows the correct vertical orientation versus incorrect horizontal or inverted orientations.
- The wiring diagram illustrates the required wire cross-sections (1.5mm², 2.5mm², 4.0mm²) and the C32 circuit breaker.
Model compatibility
- Requires a stable water pressure; if using a water tower, it must be at least 10 meters high.
Manual page author
Emily Carter
User documentation editor