Frigidaire · Dishwasher Moderate

iF1 — Flow meter fault

The flow meter is not sending pulses to the control board, or the pulse rate is out of range. The board can't confirm how much water has entered the tub.

Keep using it?
Yes, with caution
DIY difficulty
Moderate
Verified against
frigidaire.com ↗

How to fix it

  1. Shut water and power off; remove the flow meter from the fill path.
  2. Flush the meter and check that the internal turbine spins freely.
  3. Reseat the harness connector at both ends.
  4. Replace the flow meter if it doesn't spin or doesn't pulse.
  5. If a known-good flow meter still throws iF1, replace the control board.

Why it happens

Typical signs: iF1 displayed during fill phase · Fill is normal but cycle aborts · Repeated retries before fault posts

  • Debris jamming the flow meter impeller Particles from the supply line lock the small turbine inside the meter.
  • Failed flow meter Hall sensor Internal sensor stops outputting pulses.
  • Broken or unseated wiring to the meter Loose harness pin or chafed wire.
  • Faulty control board input Board input circuit failed to count pulses.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Frigidaire dishwasher flow meter Common replacement
    Amazon →

More Frigidaire dishwasher codes

Cd Cd — Door Not Closed / Latched CL CL — Close the door ER ER — General electronic control fault Hot Hot — Water inlet too hot HS HS — Wash Motor Hall Sensor Error i10 i10 — Water Not Detected (Fill)

All Frigidaire codes → All dishwasher codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: frigidaire.com.