1. Introduzione
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, showcasingrazie al suo design compatto e alla maniglia integrata.
2. Istruzioni di sicurezza
Always observe the following safety precautions to prevent injury and damage to the pump.
Sicurezza generale
- Leggere tutte le istruzioni prima dell'uso.
- Assicurarsi che la pompa sia posizionata su una superficie stabile e piana.
- Do not operate the pump without water, as this can cause damage.
- Tenere i bambini e le persone non autorizzate lontano dall'area operativa.
- Se necessario, indossare adeguati dispositivi di protezione individuale (DPI).
Electrical Safety (Battery)
- Only use original Einhell Power X-Change batteries and chargers.
- Non esporre le batterie all'acqua, al calore o alla luce solare diretta.
- Conservare le batterie in un luogo asciutto a temperatura ambiente.
- 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. Componenti finitiview
Familiarize yourself with the main components of your Einhell AQUINNA 18/28 garden pump:
- Maniglia per il trasporto: Per un facile trasporto.
- Vano batteria: For inserting the Power X-Change battery.
- Interruttore On/Off/Modalità: 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.
- Fori di montaggio: For securing the pump in a fixed location.

Figura 3: primo piano view of the robust metal threaded connections for suction and pressure hoses on the pump.
4. Impostazione
4.1 Installazione della batteria
- Aprire il coperchio del vano batterie.
- Insert a charged Einhell Power X-Change 18V battery into the compartment until it clicks into place.
- Chiudere saldamente il coperchio del vano batterie.

Figure 4: Demonstrating the correct method for inserting a Power X-Change battery into the pump's battery compartment.
4.2 Collegamento dei tubi flessibili
- Tubo di aspirazione: 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.
- Tubo di scarico: Connect a discharge hose to the pressure connection (outlet) of the pump. Secure all connections with appropriate clampse necessario.
4.3 Adescamento della pompa
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. Istruzioni per l'uso
5.1 Avviamento della pompa
- Ensure the pump is primed and all hoses are securely connected.
- Inserire una batteria carica.
- 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 modalità di alimentazione
- Modalità ecologica: Provides maximum battery life with reduced pump pressure. Ideal for lighter watering tasks or when extended run time is required.
- Modalità BOOST: 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 Arresto della pompa
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. Manutenzione
Una manutenzione regolare garantisce la longevità e le prestazioni ottimali della pompa.
6.1 Pulizia
- After each use, clean the exterior of the pump with a damp stoffa.
- 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 Protezione dal gelo
To prevent damage from freezing temperatures, completely drain the pump before storing it for winter or in cold conditions.
- Rimuovere la batteria.
- Scollegare tutti i tubi flessibili.
- 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 Conservazione
Store the pump in a dry, frost-free location, out of reach of children. Ensure the battery is removed before storage.
7. Risoluzione Dei Problemi
This section addresses common issues you might encounter with your garden pump.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| La pompa non si avvia. | Batteria non inserita o scarica. | Inserire una batteria carica. |
| On/Off switch in "OFF" position. | Move switch to "ECO" or "BOOST". | |
| La pompa funziona ma non viene erogata acqua. | 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. | Filtro di aspirazione intasato. | Pulire il filtro di aspirazione. |
| Carica della batteria bassa. | Ricaricare o sostituire la batteria. | |
| La pompa si ferma inaspettatamente. | Protezione da sovraccarico attivata. | Allow pump to cool down. Check for blockages in hoses or pump. |
8. Specifiche tecniche
| Caratteristica | Specificazione |
|---|---|
| Modello | ACQUINNA 18/28 |
| Numero di parte | 4180440 |
| Voltage | 18 V (Power X-Change) |
| Max. Portata | 2800 litri all'ora |
| Altezza massima della pompa (prevalenza) | 25 metri (2.5 bar) |
| Max. Suction Depth | 6 metri |
| Dimensioni del prodotto (L x P x A) | 17.52" x 6.1" x 8.27" |
| Peso dell'articolo | 2.55 kg (5.61 libbre) |
| Materiale | Metal (connections) |
| Componenti inclusi | Battery Garden Pump, Key for Water Fill and Drain Screw |
| Batteria e caricabatteria | Not included (Power X-Change system) |
9. Garanzia e supporto
Informazioni sulla garanzia
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.
Assistenza clienti
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 websito.





