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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 Hyundai i10?

Irregular A/C operation. No blowing from vents. Air conditioning does not turn on

Q: How to fix Air conditioning stopped cooling / no response to AC button in Hyundai i10?

Bypassing the air conditioning in an emergency (or permanently). Removing the stretch-fit belt (Laser Tools 4999) and replacing the factory 5PK1236SF belt with a shorter belt marked 5PK898SF (or similar), allowing circulation bypassing the seized compressor. This is a brilliant life hack. A disintegrating pump wheel threatens to bring a tow truck in the middle of the crossword puzzle. Instead of regenerating and wasting gas with filling, you release a shorter belt bypassing the air conditioning roller and the car regains drivability at the expense of lack of cold until the final repair is on the table.

in Hyundai i10

Symptoms

Irregular A/C operation
No blowing from vents
Air conditioning does not turn on

DTC error codes

Brak

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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

(BA/IA)

Refrigerant: R1234yf Amount (g): 410g Oil: FD46XG PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 100ml

(BA/IA)

Refrigerant: R134a Amount (g): 410g Oil: FD46XG PAO 68 lub PAG ISO 46 Oil (ml): 100ml

Standard

Refrigerant: R134a Amount (g): 450g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 120ml

See full specification

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