Automower Serviceprogram Autocheckrar 2021

The Husqvarna Autocheck program is a specialized diagnostic software used primarily by authorized dealers to service, update, and troubleshoot Husqvarna Automowers. What is Autocheck?

The 2021 version of this software (and its successor, Autocheck 3) allows technicians to perform deep system diagnostics that are not accessible via the standard consumer app. It is essential for:

Firmware Updates: Installing the latest operating software to the mower's motherboard.

Hardware Calibration: Calibrating sensors, motors, and the charging base. automower serviceprogram autocheckrar 2021

System Testing: Running automated tests on the battery, cutting motor, and communication boards.

Error Analysis: Viewing a detailed "fault memory" report to identify specific failures, such as guide wire issues or battery degradation. Access and Availability

There is significant interest within the user community regarding individual access to this software, though it remains restricted: The Husqvarna Autocheck program is a specialized diagnostic

3. The Charge Strip Corrosion (Green Strip)

Models from early 2021 saw increased reports of corrosion on the aluminum charging strips. The Autocheckrar uses a milli-ohm meter to detect resistance spikes before they cause "charging station not found" errors.

5. Known Limitations & Issues (2021 Version)

False tilt sensor errors occurred on mowers with third-party aftermarket bumpers (program expected factory bumper weight).
Bluetooth module conflict: If mower had an older BT radio firmware (pre-2020), AutoCheckRAR would sometimes hang at module 5.
No support for 2016–2017 models due to different CAN protocol (required legacy AutoCheck v2019).
Battery test accuracy degraded at ambient temperatures below 5°C (41°F) — the program didn’t compensate for temperature until the 2022 update.

The Procedure

Step 1: Enter Service Mode Turn the main switch to "Off." Wait 10 seconds. Turn it to "On," and within 3 seconds, press and hold the "Stop" and "Menu" buttons simultaneously for 5 seconds. The display will flash "Service Mode."

Step 2: Run the Motor Check Navigate to Menu > Service > Motor Test. The mower will spin the blade disc, then the left wheel, then the right wheel. Listen for grinding or inconsistent beeping. The 2021 protocol requires the blade disc to reach 2300 RPM within 2 seconds. False tilt sensor errors occurred on mowers with

Step 3: The Battery Calibration (Crucial for 2021) The Autocheckrar's hidden feature is a deep-cycle test.

Place the mower in the charging station.
Using the app, disable the schedule.
Let the mower charge to 100%.
Physically remove the mower from the station and let it run on high grass until it completely dies (0%).
Return it to the station.
Result: If the mower takes less than 45 minutes to reach 100% charge, your battery has degraded. 2021 batteries should take 65-75 minutes.

Step 4: The Lift Sensor Validation Lift the mower off the ground. The blades must stop spinning within 1.5 seconds. The 2021 service program requires a "double-beep" from the chassis. If you hear a single beep or a continuous alarm, the lift sensor needs recalibration by a dealer.