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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?

Different temperature on both sides of the cabin. Air blows from incorrect vents. Frost or ice on pipes under the hood

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

The air from the vents flows only to the windshield (defrosting) without the possibility of changing the direction, and sometimes there are problems with temperature control or turning on the compressor. The cause is a vacuum leak caused by dried, cracked, internal rubber O-rings in the solenoid valve block of the EATC module. An effective repair involves disassembling the module and replacing the O-rings or purchasing and connecting an entire new/regenerated module (so-called plug-and-play).

in Ford EXPLORER (2002-2010)

Symptoms

Different temperature on both sides of the cabin
Air blows from incorrect vents
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

(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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