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Air conditioning stopped cooling / no response to AC button

Q: What are the symptoms of Air conditioning stopped cooling / no response to AC button in Ford EXPLORER?

No cold air from vents. Different temperature on both sides of the cabin. Weak or no heating in winter. No blowing from vents

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

The problem was a failure of the EATC automatic air conditioning module, which resulted in the inability to turn on the compressor, the airflow was blocked in the defrost position, or the display flashed/blank. After a thorough diagnosis, it was determined that the cause was mechanical degradation of the internal seals (O-rings). An effective repair was professional regeneration (disassembly of the module and replacement of seals with new ones) or replacement with a fully functional used component.

in Ford EXPLORER (2002-2010)

Symptoms

No cold air from vents
Different temperature on both sides of the cabin
Weak or no heating in winter
No blowing from vents

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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

(U2) 4,0 i V6

Refrigerant: R134a Amount (g): 650g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 265ml

(U2) 4,0 i V6

Refrigerant: R134a Amount (g): 600g Oil: PAG PAO 68 b.d. Oil (ml): b.d.ml

See full specification

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Air conditioning stopped cooling / no response to AC button

Symptoms

A/C Technical Specifications

Other problems in EXPLORER

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