1. Introduction
The Einhell AQUINNA 18/28 Power X-Change garden pump is a cordless, battery-powered device designed for pumping water in various garden applications. It is part of the Einhell Power X-Change system, allowing for flexible use of compatible batteries and chargers (sold separately). This manual provides essential information for the safe and efficient operation, setup, and maintenance of your garden pump.
Please read these instructions carefully before using the pump for the first time and keep them for future reference.
Figure 1: The Einhell AQUINNA 18/28 Power X-Change garden pump, showcasing its compact design and integrated handle.
2. Safety Instructions
Always observe the following safety precautions to prevent injury and damage to the pump.
General Safety
- Read all instructions before use.
- Ensure the pump is placed on a stable, level surface.
- Do not operate the pump without water, as this can cause damage.
- Keep children and unauthorized persons away from the operating area.
- Wear appropriate personal protective equipment (PPE) if necessary.
Electrical Safety (Battery)
- Only use original Einhell Power X-Change batteries and chargers.
- Do not expose batteries to water, heat, or direct sunlight.
- Store batteries in a dry place at room temperature.
- Remove the battery from the pump before any cleaning, maintenance, or storage.
Figure 2: Illustration indicating that the battery and charger are not included with the pump and must be purchased separately.
3. Components Overview
Familiarize yourself with the main components of your Einhell AQUINNA 18/28 garden pump:
- Carry Handle: For easy transport.
- Battery Compartment: For inserting the Power X-Change battery.
- On/Off/Mode Switch: To control pump operation and select power modes.
- Water Filling Screw: For filling the pump housing with water before operation.
- Suction Connection (Inlet): Threaded connection for the suction hose.
- Pressure Connection (Outlet): Threaded connection for the discharge hose.
- Water Drain Screw: For emptying the pump, especially for frost protection.
- Mounting Holes: For securing the pump in a fixed location.
Figure 3: Close-up view of the robust metal threaded connections for suction and pressure hoses on the pump.
4. Setup
4.1 Battery Installation
- Open the battery compartment cover.
- Insert a charged Einhell Power X-Change 18V battery into the compartment until it clicks into place.
- Close the battery compartment cover securely.
Figure 4: Demonstrating the correct method for inserting a Power X-Change battery into the pump's battery compartment.
4.2 Connecting Hoses
- Suction Hose: Connect a suitable suction hose (minimum 1 inch diameter recommended) to the suction connection (inlet) of the pump. Ensure all connections are airtight to prevent air intake, which can reduce pump performance. The maximum suction depth is 6 meters.
- Discharge Hose: Connect a discharge hose to the pressure connection (outlet) of the pump. Secure all connections with appropriate clamps if necessary.
4.3 Priming the Pump
Before initial operation, the pump housing must be filled with water to ensure proper function and prevent damage.
- Remove the battery from the pump.
- Unscrew the water filling screw located on the top of the pump.
- Carefully fill the pump housing with clean water until it overflows.
- Replace and tighten the water filling screw securely.
Figure 5: Close-up of the red water filling screw, used to prime the pump with water before operation.
5. Operating Instructions
5.1 Starting the Pump
- Ensure the pump is primed and all hoses are securely connected.
- Insert a charged battery.
- Move the On/Off/Mode switch to the desired operating mode.
Figure 6: Detail of the On/Off/Mode switch, allowing selection between ECO and BOOST modes.
5.2 Power Modes
- ECO Mode: Provides maximum battery life with reduced pump pressure. Ideal for lighter watering tasks or when extended run time is required.
- BOOST Mode: Delivers maximum pump power and pressure (up to 2.5 bar, 25m head). Suitable for demanding applications or when higher flow rates are needed.
5.3 Stopping the Pump
To stop the pump, move the On/Off/Mode switch to the "OFF" position. For extended breaks or when finished, remove the battery.
Figure 7: The Einhell AQUINNA 18/28 pump in use, demonstrating its application for garden irrigation from a water source.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your pump.
6.1 Cleaning
- After each use, clean the exterior of the pump with a damp cloth.
- Periodically check the suction filter (if installed) for debris and clean as necessary.
- Ensure no foreign objects enter the pump's inlet or outlet.
6.2 Frost Protection
To prevent damage from freezing temperatures, completely drain the pump before storing it for winter or in cold conditions.
- Remove the battery.
- Disconnect all hoses.
- Unscrew the water drain screw located at the bottom of the pump.
- Allow all water to drain completely. Tilt the pump if necessary.
- Replace and tighten the water drain screw.
Figure 8: Close-up of the water drain screw, essential for emptying the pump to prevent frost damage during cold weather.
6.3 Storage
Store the pump in a dry, frost-free location, out of reach of children. Ensure the battery is removed before storage.
7. Troubleshooting
This section addresses common issues you might encounter with your garden pump.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not start. | Battery not inserted or discharged. | Insert a charged battery. |
| On/Off switch in "OFF" position. | Move switch to "ECO" or "BOOST". | |
| Pump runs but no water is delivered. | Pump not primed (air in housing). | Prime the pump by filling with water (Section 4.3). |
| Suction hose not airtight or too long. | Check all suction connections for leaks. Shorten hose if excessively long. | |
| Suction height too great (over 6m). | Reduce suction height or move pump closer to water source. | |
| Reduced pump performance. | Suction filter clogged. | Clean the suction filter. |
| Battery charge low. | Recharge or replace battery. | |
| Pump stops unexpectedly. | Overload protection activated. | Allow pump to cool down. Check for blockages in hoses or pump. |
8. Technical Specifications
| Feature | Specification |
|---|---|
| Model | AQUINNA 18/28 |
| Part Number | 4180440 |
| Voltage | 18 V (Power X-Change) |
| Max. Flow Rate | 2800 Liters per Hour |
| Max. Pump Height (Head) | 25 meters (2.5 bar) |
| Max. Suction Depth | 6 meters |
| Product Dimensions (L x W x H) | 17.52" x 6.1" x 8.27" |
| Item Weight | 2.55 kg (5.61 lbs) |
| Material | Metal (connections) |
| Included Components | Battery Garden Pump, Key for Water Fill and Drain Screw |
| Battery & Charger | Not included (Power X-Change system) |
9. Warranty and Support
Warranty Information
Einhell products are manufactured to high-quality standards and undergo strict quality controls. The warranty period for this product is typically 2 years from the date of purchase, as per EU regulations for spare part availability. Please retain your proof of purchase for any warranty claims.
The warranty does not cover damage caused by improper use, normal wear and tear, or failure to follow the instructions in this manual.
Customer Support
For technical assistance, spare parts, or warranty inquiries, please contact your local Einhell service center or visit the official Einhell website. Contact details can usually be found in the packaging or on the Einhell corporate website.
