F2
Camry
Indoor Coil Temperature Sensor Fault
F2 displayed; unit may stop in heating mode or show poor heating performance
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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
Defective indoor coil sensor (T1) on Camry indoor unit, Sensor not in contact with coil, Damaged sensor wiring harness, Fault on indoor PCB sensor input
How to Fix / Troubleshooting
Safety first: Isolate power before accessing the indoor coil area.
- 1. Check sensor mounting: Confirm that the T1 sensor is firmly clipped to the evaporator coil tubing and has not slipped out of position.
- 2. Inspect cable: Look for nicks, cuts, or pinched sections in the sensor cable where it passes through plastic guides.
- 3. Test resistance: As with other NTC sensors, measure resistance and compare with Camry’s specification at known temperatures.
- 4. Replace sensor: If faulty, replace with a Camry-compatible T1 sensor and secure it tightly to the coil.
- 5. PCB check: If a known-good sensor still gives F2, the indoor PCB’s sensor circuit may be defective and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Indoor Coil Temperature Sensor (T1)
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