Camry No Heating / Reversing Valve or Refrigerant Issue

Camry air conditioner runs but does not heat in HEAT mode (for heat pump models)

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Four-way reversing valve stuck in cooling position, Low refrigerant charge in Camry heat pump, Outdoor coil heavily iced with no effective defrost, Faulty outdoor temperature or coil sensor

How to Fix / Troubleshooting

Safety first: Turn off power before inspecting the outdoor unit.

  • 1. Confirm mode: Ensure the unit is set to HEAT mode and that the indoor fan is running.
  • 2. Check outdoor unit: In HEAT mode, the outdoor fan and compressor should run. If only the fan runs, suspect compressor or control issues.
  • 3. Inspect for ice: If the outdoor coil is a solid block of ice, the defrost system may not be working correctly.
  • 4. Listen for valve shift: When switching between COOL and HEAT, listen for the four-way valve click. Absence suggests a valve or coil problem.
  • 5. Technician service: Heating failures usually require a technician to test the reversing valve, sensors, and refrigerant charge.
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Repair Difficulty

Hard 4/5

Required Part

Four-Way Reversing Valve (Camry Heat Pump)
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