Mitsubishi Electric PUHY-HP120TNU-A, Service Handbook

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[8-12 Parts Replacement Instructions ]
HWE18240_GB chapter 8 -
67
8 Troubleshooting Based on Observed Symptoms
(4) Unscrew the screw holding the transformer box, and move the box as shown in the figure. (3 screws as shown in Figure 3.)
(5) Remove the transformer box. (Figure 4)
Transformer box
Figure 3
Figure 4
(4) Lift the transformer box to the position as shown in the figure, move the box to the designated position, and screw it down.
(3 screw as shown in Figure 5.)
*Use caution not to damage the heat exchanger fins or pipes and wires in the adjacent areas when replacing the transformer
box.
Screw down.
(3 locations)
Figure 5