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Error code reference

GE Refrigerator Error Code F518

Hot Water Low Flow Rate

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What the F518 error code actually means

Your GE refrigerator's F518 code means the hot water dispenser has detected that water is flowing too slowly or not at all, so it has shut off the hot water feature to protect itself. This is usually caused by a problem with your home's water supply, a closed valve, or a blocked component in the water line. Restoring normal water flow to the refrigerator should clear the issue and bring the hot water dispenser back online.

Diagnostic procedure

The full F518 procedure

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1
First diagnostic step
Check water supply pressure, isolation valve, and flow meter.
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Most common causes of F518

Ranked by how often they cause this code
  1. 1Partially closed or blocked isolation valve
  2. 2Low household water pressure
  3. 3Kinked or pinched supply line
  4. 4Clogged or faulty flow meter
  5. 5Clogged water inlet valve or filter

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Questions people ask about F518

What does F518 mean on a GE refrigerator?
F518 indicates a Hot Water Low Flow Rate condition. The refrigerator's flow meter has detected that water moving through the hot water circuit is too slow or has stopped, so the control board disables the hot water dispenser to protect the system. The code points to an issue with water supply pressure, the isolation valve, or the flow meter itself.
Will resetting my GE refrigerator clear the F518 code?
A reset alone is unlikely to permanently clear F518 if the underlying flow problem has not been resolved. The control board will re-trigger the code as soon as it detects low or no flow again during a hot water dispense attempt. You must restore adequate water flow before the error will stay cleared.
How much does it cost to repair the F518 error on a GE refrigerator?
If the fix is as simple as opening a supply valve, adjusting the water line, or replacing a water filter, costs can range from a few dollars to around $20 to $50 for a replacement filter. If the flow meter or water inlet valve needs replacement, parts and labor combined can range from $100 to $300 or more depending on the technician's rates and part costs in your area.
How do I fix the F518 error on my GE refrigerator?
Start by confirming the water supply valve behind the refrigerator is fully open and that household water pressure is adequate. Check the supply line for kinks, and replace the water filter if it is overdue. If those steps do not resolve the issue, the flow meter may be clogged with mineral deposits or may have failed and could require cleaning or replacement.
Is the F518 error on a GE refrigerator a safety concern?
The F518 code is primarily a protective measure, not a safety emergency. The refrigerator disables hot water dispensing to prevent the heating components from operating without sufficient water flow, which could cause overheating. Normal refrigeration and cold water functions are typically not affected by this error.

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