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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 EXPLORER?

Even though current reaches the electromagnetic clutch coil, the air conditioning compressor does not turn on. The diagnosis indicates excessive natural friction wear of the surface of the clutch disc and pulley, which results in the formation of too large an air gap. The magnetic field has no force to attract the target. Solution (cheap repair method used by mechanics): Dismantling the clutch disc from the compressor axis and removing one thin spacer (shim) from the shaft, which reduces the gap to the desired size and permanently eliminates the problem.

in Ford EXPLORER (1997-1997)

Symptoms

Air conditioning does not turn on

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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

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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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