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2012 Edge SE heater not working


melgriffith

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Per my 2007's shop manual, these are the diagnostic steps:

  • Low engine coolant level
  • Engine overheating
  • Plugged or partially plugged heater core
  • Temperature blend door is binding or stuck
  • Temperature blend door actuator
  • Heater hose is kinked or binding (check very carefully when engine is warmed up, may be hot enough to burn)

The actual controls (mechanical/electronic) are not mentioned, but there could be a fault in there as well.

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