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Error code reference

Bosch Refrigerator Error Code Er EF

Flow sensor no signal; ice making is interrupted.

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What the Er EF error code actually means

The Er EF code means your Bosch refrigerator's ice maker has stopped working because the part that detects water flowing into the machine is not sending any signal. Your fridge cannot confirm water is actually reaching the ice maker, so it shuts ice production down as a precaution. Fixing this typically requires replacing the water valve inside the refrigerator.

Diagnostic procedure

The full Er EF procedure

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1
First diagnostic step
Replace water solenoid valve (flow sensor is integrated in the valve and cannot be changed separately).
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Most common causes of Er EF

Ranked by how often they cause this code
  1. 1Failed integrated flow sensor in the water solenoid valve
  2. 2Defective or seized water solenoid valve
  3. 3Kinked, frozen, or blocked water supply line
  4. 4Low household water pressure
  5. 5Mineral scale or debris restriction inside the valve

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Questions people ask about Er EF

What does Er EF mean on a Bosch refrigerator?
Er EF indicates that the water flow sensor inside the refrigerator is receiving no signal, so the control board has interrupted ice making. The flow sensor is responsible for confirming that water is actually moving through the supply line to the ice maker during a fill cycle. Because the sensor is built into the water solenoid valve, resolving this code typically requires replacing the complete valve assembly.
Will resetting my Bosch refrigerator clear the Er EF code?
A power reset may temporarily clear the error display, but the code will return as soon as the ice maker attempts another fill cycle if the underlying fault has not been corrected. The Er EF code reflects an actual hardware condition, not a software glitch, so the flow sensor or water valve issue must be physically resolved before the error clears permanently.
How much does it cost to repair an Er EF error on a Bosch refrigerator?
If the water solenoid valve needs to be replaced, parts alone typically range from roughly 40 to 120 dollars depending on the specific model. Adding professional labor, the total repair cost generally falls in the range of 100 to 250 dollars. Costs at the lower end apply when a simple supply line issue or a clogged inlet screen is the cause and no parts are required.
Can I fix the Er EF error code myself?
A knowledgeable DIYer can address some of the simpler causes, such as checking for a kinked supply line, verifying the water shutoff valve is fully open, and inspecting the valve inlet screen for debris. However, if the water solenoid valve itself has failed, replacing it requires disconnecting water lines and electrical connectors, which involves moderate technical skill. If you are not comfortable working with plumbing connections and appliance wiring, a qualified technician should handle the repair.
Is my refrigerator safe to use while showing the Er EF error?
Yes, the Er EF code only interrupts ice maker operation and does not affect refrigeration or freezing performance. Your food remains safe, and the refrigerator continues to cool normally. The limitation is that no new ice will be produced until the fault is corrected.

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