AC working perfectly but the heat is not working

Tiny
NANA1997
  • 1999 INFINITI M45
  • 91,000 MILES

AC working perfectly but the heat is not working. The mechanic changed thermostat but the same problem continue. Another mechanic suggested it may be the heater core, but he is not sure. I am confuse, please advice. Thanks.

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Saturday, December 8th, 2012 AT 8:42 AM

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Tiny
HMAC300
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  • 47,465 POSTS

Because it is automatic temp control system has to be scanned to find problem.

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Saturday, December 8th, 2012 AT 4:29 PM

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