Massey Ferguson 11 – AIRCON (Air Conditioning Panel Module): Sunlight Sensor Signal Incorrect

This code is triggered when the signal from the cab's solar/sunlight sensor falls outside of its programmed operating limits or provides an impossible voltage value to the controller.

• 7724S
• Interim Tier 4 (2012-2015)
• 7722S
• 7722
• 7615
• 7720S
• 7716
• 7718
• 7726
• 7715
• 7616
• 7618
• 7619
• 7626
• 7726S
• 7624
• 7614
• 7718S
• 7620
• 7719
• 7714
• 7716S
• 7622
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 8600 Series
• 6700 S Series
• Global Series / Tier 4 Models (2012–2023): 4707–4710, 5608–5613, 5710SL–5713SL, 7614–7626, and 7714–7726S

1. 1

   Use the AGCO Electronic Diagnostic Tool (EDT) to verify the active code and monitor the live voltage/signal data coming from the solar sensor.

2. 2

   Visually inspect the sunlight sensor (typically mounted on the dashboard/console near the windshield or on the cab roof) for physical damage or heavy debris blocking the sensor eye.

3. 3

   Disconnect the sensor and inspect the wiring harness and pins for corrosion, moisture, or backed-out pins.

4. 4

   Check for continuity between the sensor connector and the AIRCON module to ensure there is no open circuit or short to ground causing the impossible value reading.

1. 1

   Power down the tractor

   Power down the tractor and turn off the battery isolator switch.

2. 2

   Locate the solar sensor

   Locate the solar sensor inside the cab.

3. 3

   Remove the faulty sensor

   Carefully pry or unclip the sensor from its mounting bezel (use a plastic trim tool to avoid damaging the interior panels).

4. 4

   Disconnect the sensor

   Disconnect the electrical connector from the faulty sensor.

5. 5

   Connect the new sensor

   Connect the wiring harness to the new OEM solar sensor.

6. 6

   Install the new sensor

   Snap the new sensor back into the mounting hole.

7. 7

   Clear the fault code

   Turn the battery isolator back on, power up the tractor, and use the AGCO EDT to clear the stored fault code.

8. 8

   Test the system

   Test the automatic climate control system in direct sunlight to ensure the blower fan and temperature adjust correctly.