T4EA : (E01) High Temp. Switch A

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

Overtemperature switch sensed a fluid temperature above 230°F (110°C)

Heater was delivered too much power, causing the overtemperature switch to open. RTD is not reading properly. After the heater cools down, replace RTD. Switch closes and the error can be cleared when the heater temperature falls below 190°F(87°C).

Disconnected or loose overtemperature switch cable/connection

If heater is not actually over temperature, check all wiring and connections between the TCM and the overtemperature switches.

Overtemperature switch failed in the open position

Replace overtemperature switch.