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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 Dacia Spring?

A very expensive procedure including dismantling and replacing the damaged electric compressor with a new one, multiple chemical flushing of the entire circuit to remove traces of PAG oil and filling the system with dedicated POE dielectric oil.

in Dacia Spring (2021-2025)

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

Wszystkie wersje

Refrigerant: R1234yf Amount (g): 475g Oil: POE (nieprzewodzący) Oil (ml): 120ml

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Air conditioning stopped cooling / no response to AC button

Symptoms

A/C Technical Specifications

Other problems in Spring

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