What are the symptoms of Frosting/Freezing of the grilles or evaporator in Ford ECOSPORT?

Frost or ice on pipes under the hood

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Frosting/Freezing of the grilles or evaporator

Q: How to fix Frosting/Freezing of the grilles or evaporator in Ford ECOSPORT?

The air conditioning worked properly for the first 30-60 minutes of driving, after which it gradually lost its cooling and airflow completely. The cause was excessive temperature reduction, leading to the evaporator freezing into a block of ice. An effective solution was to replace the low-pressure cycling switch with an updated version that prevented the evaporator temperature from dropping below the freezing point of water.

in Ford ECOSPORT (2013-2022)

Symptoms

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

Standard

Refrigerant: R134a Amount (g): 625g Oil: WSH-M1C231-B PAO 68 lub PAG ISO 46 Oil (ml): 120ml

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Frosting/Freezing of the grilles or evaporator

Symptoms

A/C Technical Specifications

Other problems in ECOSPORT

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