High Priority 96% confidence

Blower vents emit warm air when A/C is turned on

in Mazda CX-30 (2019-2024)

Symptoms

  • No cold air from vents
  • Weak cabin cooling
  • Irregular A/C operation
  • Frost or ice on pipes under the hood

DTC error codes

U0140:00

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A/C Technical Specifications

(BP)

Refrigerant: R1234yf Amount (g): 420-470g Oil: PAG YF ISO 46 Oil (ml): 110 - 140ml

5 (KF) 2,0 i / 2,5 i

Refrigerant: R1234yf Amount (g): 500g Oil: FD46 YF PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 100ml

5 (KF) 2,2 D

Refrigerant: R1234yf Amount (g): 480g Oil: FD46 YF PAO 68 AA1 lub PAG ISO 46 YF Oil (ml): 100ml
See full specification

Other problems in CX-30

Air conditioning stopped cooling / no response to AC button

High Priority

A/C cooling is weak and gradually loses performance

High Priority

It is not possible to adjust the air supply temperature

High Priority

Poor air conditioning performance and poor interior heating

High Priority

No airflow from specific vents or clicking noise behind dashboard

High Priority

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