F5
Camry
Mode Control / Four-Way Valve Fault
F5 error; unit may not switch modes correctly or may shut down
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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
Stuck four-way reversing valve on Camry heat pump, Faulty four-way valve coil, Incorrect wiring to valve coil from outdoor PCB, Defective outdoor PCB output to valve
How to Fix / Troubleshooting
Safety first: Turn off power and do not attempt to open the refrigerant circuit.
- 1. Listen for valve shift: When switching between COOL and HEAT, you should hear a distinct click from the four-way valve. Absence of this sound may indicate a coil or valve issue.
- 2. Check coil wiring: Inspect the two wires leading to the four-way valve coil for secure connections and no damage.
- 3. Measure coil resistance: With power off, measure the coil resistance and compare with Camry specifications. Replace the coil if open or shorted.
- 4. PCB output check: A technician can verify that the outdoor PCB is supplying the correct voltage to the coil when changing modes.
- 5. Valve mechanical fault: If the coil is good and powered but the valve does not shift, the valve body may be stuck and require replacement by a refrigeration technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Four-Way Reversing Valve Coil (Camry Heat Pump)
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