Husqvarna sets this out as a table with the columns “User interface”, “Possible faults”, “Possible action”. We print the lines in the maker’s order.

• Green indicator flashes
• Low battery voltage.
• Charge the battery.
• Red error indicator flashes
• Temperature deviation.
• Let the product cool down.
• The product does not start
• Dirt in battery connectors.
• Clean with compressed air or a soft brush.
• Red error indicator is lit
• The product needs servicing.
• Contact your servicing agent.
• Battery 40-B330X 2 Symptoms
• Cause
• Action
• The battery error indicator flashes.
• The battery is empty.
• Charge the battery.
• Heavy workload in combination with very low battery temperature.
• Make the battery warm. For example, move it indoors or operate at low speed until the battery is warm.
• The battery does not operate. The operating range of the battery is at its limit.
• Remove the battery from the product.
• Let the battery rest, and then push the battery indicator button.
• The battery temperature indicator is
• ON.
• The battery is too cold or too hot to use.
• Keep the battery in an ambient temperature between -10°C (14°F) and 40°C (104°F). When the battery has the correct temperature, it can be used again.
• The battery temperature indicator flashes.
• The battery is near its temperature limits.
• Decrease the speed and/or workload.
• Keep the battery in the preferred temperature between +10°C (50°F) and +30°C (86°F) for optimal performance.
• The battery temperature indicator is
• ON while the battery is in the charger.
• Temperature deviation, the battery is too cold or too hot to charge.
• Let the battery cool down or move it indoors to warm it up. When the battery has the correct temperature, it can be charged again. Make sure to use the charger where the ambient temperature is between 5°C (41°F) and 40°C (104°F). Keep the charger away from sunlight. If the problem
• continues, speak to your dealer.
• The troubleshooting may differ for other battery models. Refer to the operator's manual of the battery for information about how to use the battery. Only use Husqvarna approved batteries.
• The battery error indicator comes on.
• The battery has a critical error.
• Speak to your dealer.
• Battery charger 40-C750X 3 Symptoms
• Possible faults
• Possible procedure
• The charging indicator on the charger is yellow.
• The battery error indicator flashes, or the battery temperature indicator is on.
• Temperature deviation, the battery is too cold or too hot to use or charge.
• If the battery is too hot, keep it connected to the charger.
• The built-in fan of the charger decreases the temperature of the battery. When the battery has the recommended temperature, the charging starts automatically.
• If the battery is too cold, move it indoors. When the battery has the recommended temperature, continue the charging.
• Obey the temperature range for operation, refer to the operator's manual of the battery charger. Keep the charger away from sunlight. If the problem continues, speak to your dealer.
• The charging indicator on the charger is yellow. The battery error indicator on the battery is on.
• The battery has a critical error.
• Speak to your dealer.
• The charging indicator on the charger is red.
• The charger has a critical error.
• Speak to your dealer.