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AC blows warm

  

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Topic starter

My 2007 Honda Odyssey Touring  model with automatic transmission, 190,000 miles has an AC problem. Compressor was just changed but AC blows warmer on driver's side.

It changes randomly, sometimes blows cold air, sometimes warm air, regardless of outside temperature.

Thank you


5 Answers
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That's frequently a symptom of low refrigerant. It could also be a blend door problem.


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Scotty says take it back to whoever changed the compresor at 4:26

https://youtu.be/JDeZTHESPLc?si=f_yLz7i9KgzIuCnC


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Topic starter

Thanks.

Refrigerant was just recharged and blend doors checked.

What else could it be ?


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Posted by: @sol52

Refrigerant was just recharged and blend doors checked.

What else could it be ?

If there's a leak in the system some refrigerant may have already leaked out. (Modern AC systems are extremely sensitive to charge level.) Too much oil added can cause loss of cooling. Defective replacement compressor or a problem with the electronics controlling the AC system are possibilities.

Is the compressor clutch engaging when cooling fails? Is it fast cycling? What are the high and low system pressures?

Were the condenser, drier, and expansion valve changed and the rest of the system flushed out? That's S.O.P. when replacing a failed compressor due to metal debris and most new compressor warranties require it.


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Topic starter

Don't know. Will check.

Thanks !


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