Bosch Washer Error Code E17 & F17 (Causes and Fixes)

Both the Bosch washing machine error code E17 and the Bosch washing machine error code F17 are error notifications. They relate to not enough water or water pressure issues within a Bosch washing machine. 

For this article, I’ll share what I’ve learned when I dealt with both the E17 and F17 errors on my machines. There is a good deal of overlap between the problems related to both codes, which I explain below. 

Bosch Washing Machine Error Code E17 & F17

The Bosch machine error E17 alerts on the washing appliance because there was not enough water loaded into the machine in the allowed time. Machines allow only so much time for this. Then they prompt with an error code if they’re running low on H2O.

They don’t just add more time when filling up slower. Sorry!

For the Bosch machine error F17, the alert prompts because of insufficient water flowing into the machine in time or inadequate water pressure. The latter is less frequently occurring, but still worth mentioning. 

Here is a list of the 6 probable causes of error codes E17 & F17:

  1. Drain hose blockage
  2. Blocked drain pump
  3. Kinked or broken inlet hose
  4. Clogged hose filter
  5. Clogged internal inlet filter
  6. Low water pressure

Related: Bosch Washing Machine Error Code E29

Drain Hose Blockage

Located behind the filter vent is the drain hose. A blockage here indirectly causes internal water flow issues. 

Blocked Drain Pump

Adjacent to the drain hose is the drain pump. It periodically gets clogged up with debris. This triggers one or several error codes, including E17 and F17 among them. 

Kinked or Broken Inlet Hose

The inlet hose at the rear of the appliance feeds water into the washing machine. When it becomes kinked, water pressure and the water flow are reduced or halted altogether.

Also, should it spring a small leak, pressure and flow are lost for this reason too. 

Clogged Hose Filter

The inlet hose has a filter. It’s small, but when fed somewhat dirty water over a long period, it naturally gets clogged up. Water is slowed down and the machine won’t receive enough H2O before it times out. 

Clogged Internal Inlet Filter

The internal inlet filter is behind where the inlet hose connects to the rear of the Bosch washing machine. It’s a little like the last guard to catch smaller dirt or debris in the water before it reaches the machine’s innards. 

Low Water Pressure

Water pressure is a constant problem with washing machines. They dislike both pressure that’s too high and pressure that’s too low.

As I’ve mentioned, several of the above issues affect water pressure levels, too. However, even with all of those either resolved or ruled out, an error code may result. Usually, this is the F17 error code, not the E17 error code. I’ll discuss in the next section how to fix this one.  

How to Fix Bosch Washing Machine Error Code E17 & F17

One or more overlapping issues cause the E17 and F17 error codes. Because of this, more than one fix is sometimes necessary. After applying a fix, retest the machine to see if the error code reappears, or if there’re multiple causes.

Below, I run through each fix:

Drain Hose Blockage

The drain hose accumulates dust, fiber strands, smaller coins, and other items. These block it up. It causes either an E17 or F17 error code. 

How to fix – Clean the filter cap and remove debris from the drain hose

Follow these 14 steps to unblock the drain hose:

  1. Turn off the power to the washing machine. 
  2. Put on a pair of rubber gloves for heat protection. 
  3. Place a water container below the area. 
  4. Open the filter vent at the right lower front of the Bosch washing machine. 
  5. Pull the drain hose away from the fixed clips.
  6. Position the hose over the empty container. 
  7. Remove the filter cap at the end.
  8. Let the water flow out until it’s cleared. 
  9. Use an old toothbrush to remove any remaining debris inside the hose. 
  10. Wash the filter cap.
  11. Refit the filter cap.
  12. Put the drain hose back into position. 
  13. Remove the water container and empty it. 
  14. Turn the power back on to the machine. 

Blocked Drain Pump

The drain pump is next to the drain hose. The pump fixture accumulates general dirt and grime, but the occasional material debris, too. It causes either an E17 or F17 error code.

How to fix – Remove and clean the drain pump

Follow these 9 steps to unblock the drain pump:

  1. Turn off the washing machine and remove the plug from the outlet. 
  2. Open the filter vent.
  3. Unscrew the drain pump by turning it to the left about 2-3 cm only. 
  4. Pull the pump fixture out toward you. It’ll come free immediately. 
  5. Remove any dirt and debris covering it.
  6. Wipe the part all around, getting into the nooks and crannies to clean them.
  7. Check the open drain pump area. Use a toothbrush to remove any debris left inside. 
  8. Refit the drain pump. Close the filter vent. 
  9. Turn the washing machine’s power back on.

Kinked or Broken Inlet Hose

The inlet hose at the rear is prone to twisting when repositioning the washing machine or when first installing it. Even small hose kinks stop water from flowing well. If left like this for too long, a hose cracks open. 

Either situation results in slower water flow and some pressurization issues. Both lead to either an E17 or F17 error code.

How to fix – Unkink the hose and check for cracks

Follow these 11 steps to fix the inlet hose:

  1. Turn off the water supply valve.
  2. Put a water container under the area. 
  3. Unscrew the hose from the rear of the machine. 
  4. Unkink the hose to smooth it out.
  5. Feel along the hose for any cracks.
  6. Once you’re sure that there are no cracks in the hose, hold the end of the hose over the container.
  7. Open the water supply valve a small amount to let some water flow into the hose.
  8. Check for hose leaks.
  9. Once satisfied, turn the water supply off again, and reconnect the hose to the rear of the machine. 
  10. Turn the water supply back on. 
  11. Discard the collected water. 

Clogged Hose Filter

The inlet hose filter connected to the machine’s rear gets clogged. It needs removing and cleaning to resolve it. This sometimes results in an E17 or E17 error code.

How to fix – Remove and clean the hose filter

Follow these 8 steps to fix the inlet hose filter:

  1. Turn off the water supply. 
  2. Unscrew the inlet water hose.
  3. Remove the inlet valve at the end of the hose.
  4. Wash it under cold water to remove collected particles, dirt, etc. 
  5. Dry it off.
  6. Refit it to the end of the inlet water hose. 
  7. Reattach the inlet hose to the rear of the Bosch washing machine. 
  8. Turn the water back on. 

Clogged Internal Inlet Filter

The internal inlet filter is easy to overlook. When unscrewing the inlet water hose, it’s found inside the rear machine housing that the hose connects to. The clogged filter here produces an E17 or F17 error code.

How to fix – Remove the internal inlet filter and clean it

Follow these 9 steps to handle the internal inlet filter:

  1. Turn off the power to the washing machine.
  2. Turn off the water supply too.
  3. Unscrew the water inlet hose.
  4. Use a pair of pliers to grip the inlet valve inside the rear of the machine. Pull the valve directly out.
  5. Wash the inlet valve to clean it. 
  6. Refit the inlet valve.
  7. Reconnect the inlet water hose.
  8. Turn on the water.
  9. Turn on the machine’s power. 

Low Water Pressure

Low pressurization is due to poorly positioned water pipes running horizontally or water held in a low-pressurized system. In most situations, the pressurization problem leads to the F17 error code, rather than the E17 error code. 

How to fix – Redirect the water piping or switch from the storage tank to direct mains water supply

Follow these 4 steps to handle the low-pressure issue:

  1. Confirm whether the low-pressure cause is directional water piping running horizontally.
  2. Check whether water is coming from a gravity-fed storage tank and not directly from the mains water supply. 
  3. Directional piping causes water pressure loss. It’s a plumbing issue and requires a plumber to resolve it by reorganizing the water pipe placement. 
  4. If water is coming from a storage tank, then reconnect the washing machine to a direct mains water supply with higher pressure levels. 

Wrapping Up

It’s necessary to do a little trial and error on the causes and necessary fixes to resolve the Bosch washing machine E17 and F17 error codes.

Also, don’t ignore the possibility of several clogged filters contributing to the issue, too. 

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