Miele Washer Error Code F4151

F4151 means the washer ran a fill cycle for 300 seconds but the analog pressure sensor did not detect a water level increase of at least 10mm water column. The machine stopped to protect itself from running dry. The fault can come from a blocked water supply, a drain valve that is not sealing, a leak in the pressure sensing air path, or a defective ADS pressure sensor.

Resetting the machine may temporarily clear the code, but the fault will return as soon as the washer attempts another fill cycle if the underlying problem is not corrected. A reset is only useful for confirming whether the issue is intermittent. The root cause in the intake system or pressure sensing circuit must be addressed for the error to stay cleared.

Repair costs vary widely depending on the faulty component. If the fix is simply clearing a blocked inlet filter or reconnecting an air hose, labor costs alone may be in the range of $75 to $150. Replacing a drain valve or ADS pressure sensor typically adds $50 to $200 in parts, and total repair bills including labor often fall between $150 and $400 depending on your location and the specific parts needed.

Some causes of F4151 are DIY-friendly, such as checking that the water supply tap is fully open, inspecting the inlet hose for kinks, and cleaning the air trap. If those checks do not resolve the fault, diagnosing the drain valve, ADS sensor, and air path connections requires disassembly and some electrical testing, which is better handled by a qualified technician.

No. The washer halts the cycle specifically to prevent operating without a verified water level. Attempting to bypass the fault or run a cycle with inadequate water can damage the pump, heating element, and drum bearings. The fault should be diagnosed and repaired before resuming normal use.