Fault Codes / Mitsubishi Electric / 1500

PURY-(P)200/250YMF-C, PUHY-(P)200/250YMF-C — Overcharged refrigerant abnormality

Possible causes

• Excessive refrigerant charge
• Thermistor (TH1) or pressure sensor (63HS) faulty

Check steps

• Check refrigerant amount against the specified charge
• Check thermistor resistance and pressure sensor operation

Affected parts

• TH1 thermistor
• 63HS pressure sensor

Safety note

Source: Mitsubishi Electric resmi servis kilavuzu (bagimsiz cift-dogrulandi) — Mitsubishi Electric CITY MULTI Service Handbook family (PURY/PUHY -YMF-C / -YLM-A / -HP series), checking code 1500: "Refrigerant overcharge" / "Overcharged refrigerant abnormality" — detected via discharge superheat (TdSH ≤ 10°C [18°F]) during operation; first detection triggers 3-min restart, recurrence within 30…

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

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