Q: What does error code E 12 mean on a STIHL ASA 20 electric pruner and how can it be resolved?

The error code E 12 displayed on the STIHL ASA 20 electric pruner generally indicates a problem related to the battery or its power supply. Here are the steps to identify and resolve this issue: 1. Check the battery Make sure the battery is fully charged. A weak battery can trigger this error code. Recharge the battery completely before reusing the device. 2. Check the connections Ensure that the battery is properly inserted into the pruner. Examine the electrical contacts for dirt, corrosion, or debris, and clean them if necessary. 3. Operating conditions Avoid using the device in extreme temperature conditions, as this can affect battery performance and cause errors. 4. Restart the device Remove the battery from the pruner and wait a few minutes. Then reinsert the battery to perform a complete restart. If the error code E 12 persists after these checks, it is advisable to have your pruner checked by a professional or an authorized STIHL service center, as this may indicate a hardware defect requiring technical intervention.

Q: What does error code E13 mean on a STIHL ASA 20 electric pruner and how can it be resolved?

The error code E13 on a STIHL ASA 20 electric pruner generally indicates a technical issue related to the safety or operation of the device. This code may appear in case of: Motor overload or blade blockage. Battery issue , such as insufficient charge or poor contact. Safety defect preventing normal starting or operation. To resolve this issue, here are the steps to follow: Check the battery: Ensure it is properly charged and well inserted into the device. Inspect the blades: Clean them to remove any debris or obstruction that may block their movement. Examine the safety mechanisms: Ensure that all safety mechanisms are properly engaged and functional. Restart the device: Turn it off and then back on to see if the code disappears. If the E13 code persists after these checks, it is advisable to contact a specialized technical service for a more in-depth diagnosis and possible repair.

Q: What should I do if my STIHL ASA 20 electric pruner won't open?

On the STIHL ASA 20 electric pruner, the blade opens automatically after each cut and also if it gets stuck during cutting. If your pruner no longer opens the blade, this indicates a defect in the pruner that requires intervention. Here’s how to proceed. Step 1: Check a complete closing/opening cycle Properly install the recommended AS 2 battery (10.8 V), then press the trigger. The blade should first close, then open completely. You should hear a sound signal during activation and the cycle. If the blade does not open after closing, it is an internal electronic or mechanical problem. Step 2: Test the battery and contacts Remove the battery and check that the electrical contacts of the pruner and the battery are not dirty or damaged. If you see residue, gently clean the metal contacts. Reinsert the battery firmly until it clicks into place and restart the cycle test. Check the OLED screen: it should display the charge level and mode information. If an error code appears (E02, ET0-E13, E4...) accompanied by 6 sound signals, this indicates an internal malfunction. Step 3: Check that the blade is not stuck If the blade got stuck during a previous cut, the pruner may be in protection mode. Gently tilt the pruner upwards to free the blade from the cut, without levering on the side or downwards. Once the blade is free, test a closing/opening cycle again without any branches in the blades. Step 4: Consult a specialized STIHL dealer If after these checks the blade still does not perform a normal closing and opening cycle, the pruner is defective. Remove the battery and immediately contact a specialized STIHL dealer for diagnosis and repair. The ASA 20 has a complex electronic system (brushless EC motor, OLED display, proportional cutting control) that requires the expertise of a certified technician.

Question 1

What does error code E 12 mean on a STIHL ASA 20 electric pruner and how can it be resolved?

Accepted Answer

The error code E 12 displayed on the STIHL ASA 20 electric pruner generally indicates a problem related to the battery or its power supply. Here are the steps to identify and resolve this issue:

1. Check the battery

Make sure the battery is fully charged. A weak battery can trigger this error code.
Recharge the battery completely before reusing the device.

2. Check the connections

Ensure that the battery is properly inserted into the pruner.
Examine the electrical contacts for dirt, corrosion, or debris, and clean them if necessary.

3. Operating conditions

Avoid using the device in extreme temperature conditions, as this can affect battery performance and cause errors.

4. Restart the device

Remove the battery from the pruner and wait a few minutes.
Then reinsert the battery to perform a complete restart.

If the error code E 12 persists after these checks, it is advisable to have your pruner checked by a professional or an authorized STIHL service center, as this may indicate a hardware defect requiring technical intervention.

Question 2

What does error code E13 mean on a STIHL ASA 20 electric pruner and how can it be resolved?

Accepted Answer

The error code E13 on a STIHL ASA 20 electric pruner generally indicates a technical issue related to the safety or operation of the device. This code may appear in case of:

Motor overload or blade blockage.
Battery issue, such as insufficient charge or poor contact.
Safety defect preventing normal starting or operation.

To resolve this issue, here are the steps to follow:

Check the battery: Ensure it is properly charged and well inserted into the device.
Inspect the blades: Clean them to remove any debris or obstruction that may block their movement.
Examine the safety mechanisms: Ensure that all safety mechanisms are properly engaged and functional.
Restart the device: Turn it off and then back on to see if the code disappears.

If the E13 code persists after these checks, it is advisable to contact a specialized technical service for a more in-depth diagnosis and possible repair.

Question 3

How to remove the battery from the STIHL ASA 20 electric pruner?

Accepted Answer

To remove the battery from the STIHL ASA 20 electric pruner, follow these simple steps:

Ensure that the device is turned off and disconnected from any power source to ensure your safety.
Locate the battery release button which is usually found on the handle of the pruner.
Press firmly on this button while holding the pruner steadily.
Gently pull the battery out of its compartment while continuing to press the button. Avoid using excessive force to prevent damaging the device or the battery.
Store the battery in a dry place, away from extreme temperatures and moisture.

If you encounter difficulties when removing it, check that the button is fully pressed and that nothing is obstructing the battery compartment.

Question 4

What should I do if my STIHL ASA 20 electric pruner won't open?

Accepted Answer

On the STIHL ASA 20 electric pruner, the blade opens automatically after each cut and also if it gets stuck during cutting. If your pruner no longer opens the blade, this indicates a defect in the pruner that requires intervention. Here’s how to proceed.

Step 1: Check a complete closing/opening cycle
Properly install the recommended AS 2 battery (10.8 V), then press the trigger. The blade should first close, then open completely. You should hear a sound signal during activation and the cycle. If the blade does not open after closing, it is an internal electronic or mechanical problem.

Step 2: Test the battery and contacts
Remove the battery and check that the electrical contacts of the pruner and the battery are not dirty or damaged. If you see residue, gently clean the metal contacts. Reinsert the battery firmly until it clicks into place and restart the cycle test. Check the OLED screen: it should display the charge level and mode information. If an error code appears (E02, ET0-E13, E4...) accompanied by 6 sound signals, this indicates an internal malfunction.

Step 3: Check that the blade is not stuck
If the blade got stuck during a previous cut, the pruner may be in protection mode. Gently tilt the pruner upwards to free the blade from the cut, without levering on the side or downwards. Once the blade is free, test a closing/opening cycle again without any branches in the blades.

Step 4: Consult a specialized STIHL dealer
If after these checks the blade still does not perform a normal closing and opening cycle, the pruner is defective. Remove the battery and immediately contact a specialized STIHL dealer for diagnosis and repair. The ASA 20 has a complex electronic system (brushless EC motor, OLED display, proportional cutting control) that requires the expertise of a certified technician.

Question 5

What does error code F12 mean on the STIHL ASA 20 electric pruner and how can it be resolved?

Accepted Answer

The error code F12 on the STIHL ASA 20 electric pruner generally indicates a problem related to the battery or the electrical connection of the device. Here’s how to identify and resolve this issue:

1. Checking the battery

Make sure the battery is properly charged. A weak battery can trigger this error code.
Fully recharge the battery before trying to use the pruner again.

2. Checking the connections

Ensure that the battery is properly inserted into the pruner.
Inspect the electrical contacts to ensure they are clean and free of dirt or debris.

3. Restarting the device

Turn off the pruner, wait a few seconds, then turn it back on to see if the error code disappears.

4. Inspecting cables and components

Examine the cables and connectors for any damage, cuts, or wear.

If after these checks the error code F12 persists, it is possible that a more complex technical issue is at play. In this case, it is recommended to contact an authorized STIHL service center for professional assistance.

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