Introduction
This manual provides essential information for the safe and effective use of your Onerbl AC-DC Adapter. This power supply is designed to convert AC power from an electrical outlet into the DC power required by your compatible device. It has been validated and tested to ensure compatibility and proper function.
Product Overview

This image shows the Onerbl AC-DC adapter. It features a standard 2-prong US plug on one end, a coiled black cable, and two red spade connectors on the other end for connecting to the water softener control board.
The Onerbl AC-DC Adapter is a replacement power supply designed for various water softener models. It provides a stable 24V DC output at 500mA (0.5A).
Key Features:
- Input: AC 100-240V, 50/60Hz
- Output: DC 24V, 500mA (0.5A)
- Over Voltage Protection
- Over Heat Protection
- Equipped with a 2-prong US plug and spade connectors.
Compatible Devices:
This adapter is compatible with, but not limited to, the following water softener models and power supply part numbers:
- Rheem Model # RHS32 (32,000 Grain), RHS42 (42,000 Grain), RHW42 (42,000 Grain) Preferred Plus Water Softener Control Board
- Qualtek Model SAW12-240-0500UD (P/N: QFWB-12-24-US00-01)
- Ecowater P/N: 7351054
Included Components:
- 1 x Onerbl AC-DC Adapter
- 2 x 10ft cable (integrated with the adapter)
Setup
- Verify Compatibility: Before connecting, ensure that your water softener requires a 24V DC, 500mA power supply and uses spade connectors for power input. Refer to your water softener's original manual for specific power requirements.
- Disconnect Old Adapter (if applicable): If replacing an existing adapter, safely disconnect it from both the power outlet and the water softener.
- Connect to Water Softener: Carefully connect the spade connectors of the Onerbl adapter to the corresponding terminals on your water softener's control board. Ensure a secure and correct polarity connection if specified by your water softener's manual.
- Connect to Power Outlet: Plug the 2-prong AC plug of the adapter into a standard 100-240V AC electrical wall outlet.
- Power On: Your water softener should now receive power. Observe the device for proper operation indicators.
Note: Always ensure the power outlet is easily accessible for quick disconnection if needed.
Operating Instructions
Once properly connected, the Onerbl AC-DC Adapter will continuously supply power to your water softener. The adapter operates automatically when plugged into a live electrical outlet. No further user interaction is required for the adapter itself.
- The adapter provides the necessary DC power for your water softener to function.
- It is designed for continuous operation.
Maintenance
The Onerbl AC-DC Adapter requires minimal maintenance. Follow these guidelines to ensure longevity and safe operation:
- Keep Dry: Avoid exposing the adapter to water, moisture, or high humidity.
- Clean Gently: If cleaning is necessary, unplug the adapter from the wall outlet and wipe it with a dry, soft cloth. Do not use liquid cleaners or solvents.
- Avoid Physical Damage: Do not drop, bend, or subject the adapter or its cables to excessive force.
- Temperature: Operate and store the adapter within normal room temperatures. Avoid extreme heat or cold.
- Cable Management: Ensure the cable is not kinked, pinched, or placed under heavy objects.
Troubleshooting
If you encounter issues with your Onerbl AC-DC Adapter, consider the following troubleshooting steps:
- No Power to Water Softener:
- Ensure the adapter is securely plugged into a working electrical outlet. Test the outlet with another device.
- Verify that the spade connectors are firmly attached to the water softener's control board terminals.
- Check for any visible damage to the adapter or cable.
- Adapter Feels Hot:
- A slight warmth is normal during operation. However, if the adapter is excessively hot to the touch, unplug it immediately. This could indicate an overload or internal fault.
- Ensure adequate ventilation around the adapter.
- Cable Length:
- If the integrated cable length is insufficient for your installation, a suitable extension cord rated for the environment and power requirements may be used. Consult an electrician if unsure.
- Device Malfunction:
- If the water softener is not functioning correctly after connecting the new adapter, and the adapter appears to be working, consult the water softener's own instruction manual or contact its manufacturer for support.
If troubleshooting steps do not resolve the issue, discontinue use and contact the seller or manufacturer for assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | onerbl |
| Input Voltage | 100-240V AC, 50/60Hz |
| Output Voltage | 24 Volts DC |
| Output Current | 0.5 Amps (500mA) |
| Wattage | 12 watts |
| Connector Type | 2-Pin US Plug, Spade Connectors |
| Item Weight | 6.2 ounces |
| Package Dimensions | 4 x 3 x 2.2 inches |
| Manufacturer | Shenzhen Waweis Technology Co., Ltd |
| First Available Date | August 12, 2024 |
Warranty and Support
For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact the seller directly. The manufacturer of this product is Shenzhen Waweis Technology Co., Ltd.