A/C blowing hot air

2003 HONDA ACCORD
270,000 MILES • 1.4L • 3 CYL • 2WD • AUTOMATIC
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LOOKINGFOR
  • MEMBER
  • 4 POSTS
Having problem with my A/C blowing hot air. I don’t know what to do next.

• The compressor clutch is engaging.
• Changed the ac compressor relay, that didn’t work.
• Ac is charged with refrigerant.
• Both fans are working.

Would love your advise on what could be the issue and what to do next.

Thanks in advance.
May 24, 2019 at 1:04 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Can you give me the high and low pressures of the system while the AC is on? You can rent a set of gauges from a parts store if you do not have one.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

The other possibility is the blend door. that is common but needs to be confirmed.

Roy

Mode Control Motor Replacement

4-door

1. Open the glove box. Remove the damper from the glove box, then let the glove box hang down.


imageOpen In New TabZoom/Print

2. Disconnect the 7P connector (A) from the mode control motor (B). Remove the self-tapping screws and the mode control motor from the heater unit.
3. Install the motor in the reverse order of removal. After installation, make sure the motor runs smoothly.

2-door

1. Open the glove box. Remove the damper from the glove box, then let the glove box hang down.


imageOpen In New TabZoom/Print

2. Disconnect the 10P connector (A) from the mode control motor (B). Remove the self-tapping screws and the mode control motor from the heater unit.
3. Install the motor in the reverse order of removal. After installation, make sure the motor runs smoothly.
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May 24, 2019 at 1:24 AM
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