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Error code reference

Bosch Washer Error Code Er:14

Overflow level exceeded

Bosch codesBosch washer codes

Overflow level exceeded — faulty or blocked pump, hose, or inlet valve.

First step from the service manual

Run test P9; check drain pump, hoses, and inlet valve.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What Er:14 means on a Bosch washer

Er:14 on a Bosch washer indicates that the water level inside the drum has exceeded the programmed overflow threshold. This is a critical safety-level fault: the machine's pressure sensor or water level monitoring system has detected more water than the cycle parameters allow, triggering an immediate halt to prevent flooding. The code points specifically to a failure in the water management system, which includes the drain pump, drain hoses, and the inlet valve.

The most common mechanical cause is a drain pump that cannot evacuate water fast enough, either because the pump itself is faulty or because a blockage in the pump filter, drain hose, or standpipe is restricting flow. If water cannot leave the tub at the proper rate, levels rise and eventually trigger the overflow detection. A blocked or kinked drain hose produces the same result by creating back pressure that prevents drainage.

The inlet valve is also a direct suspect because a valve that fails to close completely will continue allowing water into the drum even when the control board has stopped requesting fill cycles. This continuous slow fill can push water past the overflow threshold during any phase of the wash cycle. Bosch diagnostics recommend running test P9 to evaluate the drain pump's function and to isolate whether the fault originates in the drainage path or in an inlet valve that is not shutting off properly.

Source: manufacturer service documentation.

Common causes of Er:14

  1. 01

    Blocked drain pump filter

    Wiring / connection

    Lint, debris, or foreign objects lodged in the pump filter restrict water flow out of the tub, causing levels to rise. Remove and clean the filter, checking for any solid obstructions blocking the impeller.

  2. 02

    Faulty or seized drain pump

    Part replacement

    If the pump motor has failed or the impeller is seized, the machine cannot evacuate water even with a clear filter. Run test P9 to confirm whether the pump is receiving power and operating; a non-functioning pump under power indicates pump replacement is needed.

  3. 03

    Blocked or kinked drain hose

    Wiring / connection

    A drain hose that is kinked, crushed, or blocked by debris creates back pressure that prevents proper drainage. Inspect the full length of the hose from the pump outlet to the standpipe and straighten or clear any restrictions.

  4. 04

    Inlet valve not closing fully

    Part replacement

    A water inlet valve that fails to shut off completely allows a slow continuous trickle of water into the drum, eventually exceeding the overflow level even while the machine is idle or mid-cycle. This component typically requires replacement if it cannot hold a closed position.

  5. 05

    Blocked standpipe or household drain

    Wiring / connection

    If the home's standpipe or drain connection is partially clogged, water pumped out of the washer can back-siphon or fail to clear, creating the appearance of overflow. Check for slow drainage at the standpipe independent of the washer.

See the test procedure for each cause

Frequently asked questions about Er:14

What does Er:14 mean on a Bosch washer?
Er:14 means the washer detected a water level that exceeded the overflow safety threshold and shut down to prevent flooding. The fault is associated with the water management system, specifically the drain pump, drain hoses, and inlet valve. Either water is not draining out correctly or the inlet valve is allowing water to enter when it should be closed. Running Bosch diagnostic test P9 is the recommended first step to isolate the source.
How do I fix Er:14 on my Bosch washer?
Start by cleaning the drain pump filter, which is the most common and easiest fix. Next, check the drain hose for kinks or blockages and confirm the standpipe is draining freely. If those steps do not resolve the fault, run diagnostic test P9 to test the drain pump directly. A pump that fails the test or an inlet valve that does not close fully will need to be replaced.
Will resetting my Bosch washer clear the Er:14 code?
A power reset may temporarily clear the error display, but Er:14 will return if the underlying cause is not corrected. Because this code indicates a real overflow condition, the machine will trigger it again as soon as water levels exceed the threshold in the next cycle. Clearing the code without fixing the pump, hose, or inlet valve is not a permanent solution.
Is it safe to use my Bosch washer when Er:14 is showing?
No, you should not run the washer while this fault is active. Er:14 indicates the machine detected an overflow condition, and continuing to operate it risks water leaking onto your floor and potentially causing water damage or electrical hazards. Resolve the drain pump, hose, or inlet valve issue before running another cycle.
How much does it cost to repair a Bosch washer showing Er:14?
Repair costs depend on the cause. Cleaning a blocked pump filter or straightening a kinked hose costs nothing beyond your time. Replacing a faulty drain pump typically runs between $150 and $350 including parts and labor, while an inlet valve replacement generally falls in the $100 to $250 range. Costs vary based on your location and whether you hire a technician or complete the repair yourself.

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