Electrical System Repair; Replacement Power Board - Bosch ACS 553 Service Manual

ACS 553, ACS 563 Service Manual

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
Robert Bosch GmbH

ELECTRICAL SYSTEM REPAIR

P4
P3
P6
Figure 3-5. Power Board Connector Identification
Remove Existing Power Board
1. Disconnect unit from the power source.
2. Remove the four screws under the control
panel.
3. Tilt the control panel upwards the front of
the unit.
4. Disconnect all wires from power board.
5. 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. Tilt the control panel down and secure with
four screws.
4. Power up the unit and perform a functional
test.
P8
J1
P7 P1
P2
PBP2
63
Electrical
PBP8
PBJ1
PBP1
PBP7
1 689 975 295 2021-04-13