Nissan & Infiniti No Heat or A/C Fix Blend Door Actuator (Air Mix Motor) Problem Simple Reset

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If your Nissan or Infiniti isn’t switching between hot and cold air, this video shows how to diagnose and fix the most common cause — the blend door actuator (also called the air mix door motor).
This small motor controls how much hot or cold air passes through your HVAC system, and when it fails, your A/C or heater will stay stuck on one temperature.

In this video:
• How to identify symptoms of a bad blend door actuator
• Location of the actuator behind the glove box or center console
• How to test power, ground, and signal with a multimeter
• Easy DIY replacement without removing the dash
• Optional HVAC reset procedure after battery change

Common on these models:
• Nissan Rogue / Rogue Select / X-Trail
• Altima, Maxima, Sentra, Versa, Juke
• Murano, Pathfinder, Quest, Titan, Frontier, Armada
• Infiniti QX50, QX60, QX70, Q50, Q60, G35, G37

Typical symptoms:
• Air stays hot or cold no matter the temperature setting
• Clicking noise behind the dash
• Temperature changes only on one side (dual-zone models)
• No movement from actuator during temperature adjustment

Tools used:
• Basic hand tools
• Multimeter for signal testing

Keywords:
nissan no heat, nissan no ac, infiniti no heat, infiniti no ac, blend door actuator, air mix door motor, heater not working, nissan climate control, qx60 hvac issue, rogue blend door fix, altima hvac repair, murano ac problem, infiniti temperature problem, diy hvac repair, nissan heater fix
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