Overhauling Procedures - Mitsubishi Electric FRESH MASTER GUF-50RD4 Handbook

8. Overhauling procedures

Work precautions
• When touching the electric components such as circuit boards and fan motors, do not touch the components
for more than 5 minutes after power-off, and then start working.
• Before replacing parts, follow the instructions described in the troubleshooting.
• When servicing, always keep proper footing.
• When servicing, make sure that the power supply isolator is off, so as no electrical shock or injury to occur.
Pay sufficient attention when working on the product.
• Always connect the power wires properly.
• After completing repairs, verify that the product operates properly.
• Always wear gloves when servicing.
The following pictures show GUF-100RDH
( 1 ) Turning power off
1 Shut down the unit.
2 Turn off the power supply isolator on the distribution board.
(2) Fan Section
1 Unscrew the cover fixing screw (one special (spl.)
screw 4 × 11, indicated by ).
2 Pull back the hinge. Open the maintenance (maint.)
cover and lift it off the fix piece.
3 Remove the Lossnay cores from the unit.
.
4
Lossnay core
─ 18 ─
Maint. cover
Hinge
Filter