Likely cause: Water intake blocked. Solution: Turn off the water valve. Unscrew the inlet hose from the wall. Clean the mesh filter inside the hose connector. Run water into a bucket to ensure the house pressure is fine.
Even if you cannot locate the manual immediately, you can solve 80% of issues with generic Bosch knowledge. Here are the top five complaints for the PES4A platform and how to fix them. bosch pes4a manual
Once you secure the manual, you will find several critical sections. Even if your manual is for a different but similar model (e.g., Bosch PES4A dishwasher), the layout is mostly standardized. Here is what to look for: Likely cause: Water intake blocked
The PES4A uses a 4-position DIP switch to set the module address. According to the manual: Note: Switch 4 ON usually disables the module
| Switch 1 (LSB) | Switch 2 | Switch 3 | Switch 4 (MSB) | Assigned Zones | | :--- | :--- | :--- | :--- | :--- | | ON | OFF | OFF | OFF | Zones 5-8 | | OFF | ON | OFF | OFF | Zones 9-12 | | ON | ON | OFF | OFF | Zones 13-16 | | OFF | OFF | ON | OFF | Zones 17-20 | | ON | OFF | ON | OFF | Zones 21-24 |
Note: Switch 4 ON usually disables the module.
