F0 displayed; unit may not start or may shut down shortly after starting

Safety first: Refrigerant is under high pressure and must only be handled by licensed technicians.

• 1. Visual leak inspection: Look for oil stains on flare joints, service valves, and around the indoor and outdoor coils. Oil residue often indicates a refrigerant leak.
• 2. Listen for hissing: With the unit off, listen near joints and coils for any hissing sounds that may indicate an active leak.
• 3. Do not continue running: Avoid operating the Camry air conditioner with F0 present; running with low refrigerant can damage the compressor.
• 4. Professional leak test: A technician should perform a nitrogen pressure test and use electronic leak detection or soap solution to locate leaks.
• 5. Repair and recharge: Once leaks are repaired, the system must be evacuated and recharged with the exact refrigerant type and weight specified on the Camry nameplate.

Warning: Never attempt to top up refrigerant without first fixing leaks; this is unsafe and illegal in many regions.