Error code

Mitsubishi Electric PQHY/PQRY code 4230

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Meaning

Heatsink overheat protection: When the heat sink temperature (THHS) remains at or above TOH is detected. Model TOH PQHY 105°C [221°F] PQRY 100°C [212°F]

Member details

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Possible causes

(1) Air passage blockage (2) THHS failure 1)

Solution

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