High supply pressure and Bosch Dishwasher E:17

What E:17 means

A dishwasher that drains again and again, then quits before the program ends, is how E:17 tends to show up. The control has noticed water arriving faster than its fill logic expects, and Bosch attributes that to house pressure higher than the machine was built to handle. Two actions are documented: have the supply pressure measured against local plumbing requirements, and check the inlet valve itself.

Common causes of E:17

Supply pressure above the machine's design range
Pressure-reducing valve on the house line worn out
Fill valve letting through more than it should

✓ One safe check you can try

1. Listen around the house after closing a tap quickly; banging or hammering in the pipes suggests high pressure. 2. If you hear it, note which fixtures do it. 3. Do not adjust the pressure regulator yourself. 4. Bring this up with a plumber and with us, because both checks help.

! Why to stop there

Adjusting a regulator without a gauge can leave the pressure higher or too low for every appliance in the house.
Replacing the inlet valve while pressure stays high just wears out the new one.
High pressure also stresses hoses and fittings, so a hose can burst before the dishwasher does.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Dishwasher codes

E:31Water in the zeolite container - Bosch Dishwasher E:31 FBosch Dishwasher F on an older display (water filling) 2HBosch Dishwasher 2H: Long Cycle Warning on Older Displays 1Bosch Dishwasher Service Test Result 1: Aqua Sensor 2Bosch Dishwasher Service Test Result 2: Heating Group 4Bosch Dishwasher Service Test Result 4: Water Filling 8Bosch Dishwasher Service Test Result 8: Temperature Sensor 16Bosch Dishwasher Service Test Result 16: Spray Diverter

E:17E:17 questions

Does high water pressure affect other appliances?

Yes. Washers, ice makers and faucets all feel it, and hoses age faster under it. If your pipes bang, that is a house issue worth fixing, no matter which appliance flagged it first.

Who measures the pressure, you or a plumber?

A gauge on an outdoor spigot gives a quick reading, and we can note what we find. If the house regulator needs replacing, that is a plumbing job.

Is the dishwasher safe to run with E:17?

Cycles will usually still start, but they may keep draining and stopping. Running it repeatedly puts extra strain on the inlet valve, so it is better to have the pressure looked at soon.