What are the symptoms of Air conditioning stopped cooling / no response to AC button in Ford F-150?

Problem visible at standstill or in traffic. Different temperature on both sides of the cabin. A/C does not react to control panel settings. Frost or ice on pipes under the hood

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Air conditioning stopped cooling / no response to AC button

Q: How to fix Air conditioning stopped cooling / no response to AC button in Ford F-150?

The user reports the inability to start the car ("No Crank/No Start"). The battery was discharged, after applying voltage it was noticed that the air conditioning compressor clutch was engaged and was constantly drawing current when the vehicle was stationary with the engine turned off (errors in Body Control Module C). Continued use may even cause the components to melt. Solution (TSB 23-2130): An electronic error has been diagnosed in the BCMC module. The repair consisted of installing a new BCMC module and - due to wear resulting from continuous operation - completely replacing the compressor coil and clutch disc with a new one.

in Ford F-150 (2021-2023)

Symptoms

Problem visible at standstill or in traffic
Different temperature on both sides of the cabin
A/C does not react to control panel settings
Frost or ice on pipes under the hood

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

Refrigerant specifications for this model are available in the catalog.

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Air conditioning stopped cooling / no response to AC button

Symptoms

A/C Technical Specifications

Other problems in F-150

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