Bosch SPS40C12GB Repair Instructions page 37

Test
Fig. 3: Position of the components on the power module
1 TH401 = Water switch
2 TH402 = Actuator valve of water storage
tank
3 TH403 = Filling valve / Aquastop valve
4 TH405 = Regeneration valve
5 Switchover relay LP / Zeolite ventilator
6 T324 = Drain valve of heat exchanger
7 T325 = Drain valve of heat exchanger,
dispenser
8 T326 = Dispenser
9 K302 = Zeolite heating (operating relay)
10 K301 = Zeolite heating (safety relay)
1. Perform a visual check for any damage to the components on the power
module.
2016-03-02 / DIS 840_58300000176874_ara_en_c
11 K303 = Heating (operating relay)
12 F100 = Safety fuse
13 R119 = Varistor with thermal fuse
14 R101 = NTC (intermediate circuit)
15 Terminal strip for add-on module
16 V700 = BLDC motor control (UP/fan or UP/LP)
17 V200 = BLDC motor control (UP, optional)
18 Terminal strip for add-on module
19 Add-on module with galvanic separation
(optional)
Copyright by BSH Hausgeräte GmbH
2. 0 If any of the components on the power module are damaged,
1) check the corresponding parts of the appliance and replace any that
are defective.
2) Replace the power module. (Page 91)
3. 0 If none of the components on the power module is damaged,
1) reassemble the power module. (Page 37)
2) Continue diagnosing the fault.
5.6.3 Reassembling the power module
1. Slide the power module into the upper housing section (1).
2. Push the housing sections together and latch them evenly (2).
Page 37 of 157