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Thermo Fisher Scientific

Flame on and off buttons are off or not blinking

Issue

After replacing the control board, the flame on and off buttons are not on or flashing and it is not possible to light the flame.

Environment

  • iCE 3300
  • iCE 3500

Resolution

Check on the control board the position of contact for link LK6 if you find it between pin 2 and pin 3 (see figure 1) it is in the wrong position; connect between pin 1 and pin 2 (see figure 2).

After this change, verify flame on and off button are working as expected and flame ignites correctly.

Figure 1 - Link in wrong position (between pins 2-3)

Figure 1 - Link in wrong position.png

Figure 2 - Link in correct position (between pins 1-2)

Figure 2 - Link in correct position.png

Cause

The link LK6 on the control board is placed in wrong position.

 

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