• Tiny
  • Ebenezer64
  • 2008 Mazda 3
  • 80 miles

I only get heat from the heater when max temp is selected on my Mazda 3 Sport, why?

Thursday, September 13th, 2012 AT 11:50 PM

1 Answer

  • Tiny
  • hmac300
  • Expert
  • 43,014 posts

Make sure it's full of coolant first then check to see if there is a blockage if both hoses are about the same temp then you may have an actuator in the heater box broken. If this is auto temp control -like you set the temp then get it diagnosed what is wrong with it as it can be a sensor or anything.

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Friday, September 14th, 2012 AT 12:04 AM

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