Electrical System Repair; Replacement Power Board - Bosch ACS 653 Repair Instruction

Electrical

Replacement Power Board

WARNING: Disconnect the unit from
the power source before beginning
service work. Incorrect use or
connections can cause electrical
shock.
WARNING: Wear safety goggles
when working with refrigerants.
Refrigerants can cause eye injury.
WARNING: Use extreme caution
w h e n d i s c o n n e c t i n g h o s e s .
Pressurized refrigerant may be
present in hoses. Point hoses away
from you and anyone nearby.
Instructions
These instructions outline the basic steps to
replace the power board. Refer to Figure 3-5.
PBP4
PBP3
PBP6
SP00D00624 2021-04-08

ELECTRICAL SYSTEM REPAIR

P4
P3
P6
P5
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Figure 3-5. Power Board Connector Identification
ACS 653, ACS 663 Service Manual
Remove Existing Power Board
1. Disconnect unit from the power source.
2. Open the service rear door.
3. Remove the rear cover (above the service
door) by pushing it up and extract it by
pulling it out.
4. Remove the cover from power box.
5. Disconnect all wires from power board.
6. Remove screws securing power board in
place and remove power board.
Install Replacement Power Board
1. Install new power board and secure in place
with screws.
2. Connect wires as shown in power board
wiring diagram. See Figure 3-5.
3. Insert the cover on the power box.
4. Insert the rear cover so that the 4 holes on
the sides the cover fit into the 4 clips on the
machine. Push down to hook the rear cover.
5. Close the service rear door
6. Power up the unit and perform a functional
test.
P9
P8
J1
P7 P1
P2
PBP2
74
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PBJ1
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Robert Bosch GmbH