Sinclair error code F2
What it means
Indoor coil temperature sensor fault.
Possible causes
Evaporator thermistor failed Sensor displaced from coil Harness chafed or broken
Suggested fix
Check sensor mounting and cable integrity and verify resistance against the expected curve; remount or replace the sensor and repair wiring as necessary.
Safety first. Isolate the power supply before inspecting any unit. Refrigerant-circuit
and electrical repairs must be carried out by a qualified, registered technician.
Other Sinclair codes
- E1 — High pressure protection or system high-pressure fault.
- E2 — System low-pressure fault.
- E3 — System low-pressure protection (severe or repeated low-pressure event).
- E5 — Current protection on compressor or fan circuit.
- E6 — Communication error between indoor and outdoor units.
- F1 — Indoor air (room) temperature sensor fault.
- F3 — Outdoor ambient temperature sensor fault.
- F4 — Outdoor coil temperature sensor fault.
- F5 — Discharge line temperature sensor fault.