Midea SMK-60/CGN8, Руководство по обслуживанию

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M‐Thermal Split
78 201909
Midea M‐Thermal Split Ser
vice Manual
4.21 Pd Troubleshooting
Digital display output
Description

High temperature protection of air side heat exchanger refrigerant outlet in cooling mode. When the air side heat
exchanger refrigerant outlet temperature is higher than 62°C for more than 3 seconds, the system displays Pd
protection and M‐Thermal Split stops running. When the air side heat exchanger refrigerant outlet temperature
returns drops below 52°C, Pd is removed and normal operation resumes.

M‐Thermal Split stops running.

Error code is displayed on outdoor unit main PCB and user interface.
Possible causes

Temperature sensor not connected properly or has malfunctioned.

Poor condenser heat exchange.

Fan motor damaged.

Hydronic box main PCB damaged.
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