Fault Codes / Mitsubishi Electric / 5104

Mitsubishi Electric 5104

Medium

City Multi — Thermistor fault — outside temperature (TH24).

Mitsubishi Electric 5104: Thermistor fault — outside temperature (TH24). This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Thermistor open/short.
Connector/lead faulty.

Check steps

Check connector & seat on outdoor sensor.
Check resistance per service manual.

Affected parts

Thermistor (TH24)

Safety note

230V — isolate power.

Source: Mitsubishi Electric City Multi Fault Code List (resmi) — DÜZELTİLDİ (2026-07-04): kod önceden 'Druckgastemperatur (TH4)' olarak yanlış etiketliydi, kılavuz 5104='Außentemperatur-Fühler (TH24)' diyor

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

Look up in Enthalio →

Related fault codes

Serial / panel communication error.0403 Discharge temperature fault (too high).1102 Low pressure fault (suction too low).1301 High pressure fault.1302 Refrigerant overcharge.1500 Drain pump fault.2502