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No cooling (total) and errors / Flashing air conditioning panel (Climatronic)

Q: What are the symptoms of No cooling (total) and errors / Flashing air conditioning panel (Climatronic) in Renault Clio 3?

No cold air from vents. A/C does not react to control panel settings

Q: How to fix No cooling (total) and errors / Flashing air conditioning panel (Climatronic) in Renault Clio 3?

Unclogging the drains, regenerating the UPC module PCB or replacing it.

in Renault Clio 3 (2002-2012)

Symptoms

No cold air from vents
A/C does not react to control panel settings

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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

V - (BJA)

Refrigerant: R1234yf Amount (g): 380-420g Oil: PAG YF ISO 46 Oil (ml): 100 - 120ml

Refrigerant: R134a Amount (g): 430g Oil: PAG 488 PAO 68 lub PAG ISO 150 Oil (ml): 120ml

Refrigerant: R134a Amount (g): 505 – 565g Oil: PAG 46 PAO 68 lub PAG ISO 46 Oil (ml): 125 – 145ml

See full specification

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