0x4210

The heatsink temperature of the power unit (display in 0x2D84:001 (P117.01)) has exceeded the fixed error threshold (100 °C).

• Ambient temperature too high.
• Fan or ventilation slots are polluted.
• Fan is defective.

Fault - Power unit overtemperature

• Check mains voltage.
• Provide for a sufficient cooling of the device. In case of a 100 % load, 60 C to +70°C are normal. Display of the heatsink temperature in 0x2D84:001 (P117.01).
• Clean fan and ventilation slots. If required, replace fan.
• Reduce switching frequency 0x2939 (P305.00)

Fault