Damaged insulation of the temperature sensor wires (reference 19 image & reference 29 image), which measures the temperature in the channel of the air outlet of the Lamp House. When disconnecting the wire of the temperature sensor from the Signal Backplane (reference 9 image) the error code is changed to “lamp - temperature sensor open”.

1. Repair the insulation of the wire unit using shrink sleeve.

2. If not repairable, replace the temperature sensor and wiring.

Defect temperature sensor (reference 19 image), which measures the temperature in the channel of the air outlet of the Lamp House. When disconnecting the wire unit of the temperature sensor from the Signal Backplane (reference 9 image the error code is changed to “lamp - temperature sensor open”.

Replace the temperature sensor.