Clearing Error Code E24 Drain Obstructions; Resetting Power Modules; Correcting Overly High Drain Connections; Clearing Drain Obstructions - Bosch SHEM63W55N Repair Manual

Test
5.5 Clearing error code E24
If a dishwasher doesn't drain properly and / or shows an
due to drain obstructions, not a faulty power module or drain pump.
To correct the problem, (1) reset the power module, (2) correct overly high drain con-
nections and / or (3) clear drain obstructions.

5.5.1 Resetting power modules

Reset the power module by using Method 1 below. If unsuccessful, use Method 2.
▶
Fig. 65: Power module
5.5.1.1 Method 1
1. With the door closed and the dishwasher turned on, press and hold Start for 5 s.
The display should show 01 or 00.
2. Press On / off (turning the dishwasher off).
5.5.1.2 Method 2
Prerequisite:
Power supply to dishwasher disconnected.
Toe panel removed→ Page 87
Drain pump harness disconnected from drain pump and connector taped (to make
sure it didn't touch anything).
Power supply to dishwasher reconnected.
1. With the door closed, press On / off to turn the dishwasher on.
You should hear the power module turn on and control relays click on and off.
2. Wait about 30 s with the power on, then press On / off to turn the dishwasher off.
3. With the power off, reconnect the drain pump harness and reinstall the toe panel.
4. Close the door and press On / off to turn the dishwasher on.
2020-04-24_58300000218396_ara_en_c
drain obstructions
E24 error code, the problem is

5.5.2 Correcting overly high drain connections

¡ Error code
¡ The only repair, especially for Johnson Tee installations, is to instruct customers to
correct their drain connections.
1. Advise customer:
To have their drain connection lowered < 50" (1.27 m).
2. Advise customer:
To correct their Johnson Tee installation.
– The Johnson Tee must be installed in the wall behind the dishwasher ≤
50" (1.27 m) above the floor.
– The plumbing connection must be ¾" minimum – ½" must not be used.
– Dishwasher drain hose extensions must not be used (with overly high drain
connections).

5.5.3 Clearing drain obstructions

Prerequisite:
Dishwasher is fully installed (if previously disconnected).
Drain hose is properly connected.
Copyright by BSH Hausgeräte GmbH
E24 can occur for drain connections > 50" (1.27 m).
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