Daikin MicroTech III DPS - Troubleshooting: Error Code L4; L4 - Inverter Radiating Fin Temperature Rise

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ERROR CODE: L4 – Malfunction of Inverter Radiating Fin Temperature Rise
Remote
Controller
Display
L4
Method of
Malfunction
Detection
Fin temperature is detected by the thermistor of the radiation n.
Malfunction
Decision
Condition
When the temperature of the inverter radiation n increases above 188.6°F.
Supposed
Causes
● Actuation of n thermal (Actuates above 188.6°F)
● Defect of inverter PC board
● Defect of n thermistor