Operator's Manual for Husqvarna WT 15i Water Tank
Quick guide for the Husqvarna WT 15i water tank. Includes setup, operation, battery charging, maintenance, and troubleshooting steps.
Table of contents
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Click an image to enlargeQuick guide from the manual
The Husqvarna WT 15i is a water tank designed for use with Husqvarna power tools. This manual provides instructions for safe operation, maintenance, and troubleshooting.
Product overview
The unit consists of a water tank, a start/stop button, a battery slot, and a nozzle. It is designed to be used with various power cutters and core drills.

Safety
General safety: Read both this manual and the manual for the power tool before use. Use personal protective equipment. Do not use a high-pressure washer to clean the product.
Battery and charger safety: Use only recommended Husqvarna batteries and chargers. Keep batteries away from heat, open flames, and metal objects. Do not charge batteries in wet conditions.
Operation



Filling the water tank
- Remove the water tank cap.
- Fill the tank with water only. Do not add other liquids.
Charging the battery
- Connect the battery charger to a power outlet.
- Connect the battery to the charger.
- Ensure the green charging light is on.
- When all LEDs on the battery are lit, it is fully charged.
Starting and stopping
Insert the battery into the battery slot and press the start/stop button to start the product. Press the button again to stop. The pump stops automatically if the tank runs out of water.
Maintenance
Clean the battery terminals with compressed air or a soft, dry cloth. Clean the surfaces of the battery with a soft, dry cloth. Do not clean the battery with water.
Troubleshooting
- LED flashes, product does not start: Battery is not charged.
- LED flashes during operation: Low battery voltage.
- Pump operates but no water: Air bubbles in the pump container or blocked filter. Wait 1 minute and restart, or clean the pump.
- Pump does not operate: Blockage in the pump/filter or frozen water. Clean the pump or move the product to a warm location.
Technical data
The WT 15i has a water capacity of 15 liters (3.7 gallons) and weighs 3.9 kg (8.6 lbs) empty. It operates at a water pressure of 1.1 bar (16 psi).
Manufacturer information
Husqvarna
Practical help
Common problems
The battery is not charged. Charge the battery.
There may be air bubbles in the pump container. Wait 1 minute and start again, or check for a blocked filter.
The filter in the pump holder is blocked. Remove and clean the pump.
Check for blockages in the pump or frozen water. If frozen, move to a warm location.
Before use
- Ensure the battery is fully charged
- Check that the battery, charger, and terminals are clean and dry
- Fill the tank with water only
- Ensure the pump is not frozen
- Read the operator's manual for the power tool being used
Specs in practice
- Water capacity
- 15 liters (3.7 gallons)
- Water pressure
- 1.1 bar (16 psi)
- Weight (empty)
- 3.9 kg (8.6 lbs)
Images and diagrams
- 1. Water tank
- 2. Water tank cap
- 3. Start stop button
- 4. Battery slot
Model compatibility
- Compatible with various power cutters and core drills on the market.
- Not recommended for high-performance products that use high water flow and high water pressure, such as concrete chain saws.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.