DAI

Daikin J3-16

Medium

VRV / Sky Air — Discharge pipe thermistor (R31T): open circuit.

Daikin J3-16: Discharge pipe thermistor (R31T): open circuit. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Thermistor open / connector loose.

Check steps

Check discharge thermistor & connector.
Check resistance per service manual.

Affected parts

Heißgas-Thermistor

Safety note

Mind hot discharge side.

Source: Daikin SM-TS3 (Simple Self-Diagnosis by Malfunction Code, resmi) veya VRV IV+ Service Manual (ManualsLib) — ManualsLib p.69: J3-16 (grouped with 22,28) = 'Discharge Temperature Thermistor (R21T) Open Circuit'. Matches claimed meaning.

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

Look up in Enthalio →

Related fault codes

Outdoor PCB faulty.E1 Refrigerant shortage (low pressure / stop valvU0 Power supply defect / brief power failure.U2 Transmission error indoor/outdoor unit.U4 Low-pressure protection / LP sensor (suction bE4 Inverter compressor instantaneous overcurrent L5