Gree error code F4
Outdoor coil/condenser sensor open or short. On some units, discharge-related.
What to check, and in what order, is in the app. The flow Gree F1-F5 — Sensor Open/Short Fault walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- Gree Slimline RV (Recreational Vehicle / Roof Top) A/C Service Manual (GRH085DA, R410A) -- 9.1 Error Code + 9.2 TroubleshootingGree
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