Drive motor tachometer error

Check tachometer coil on back of motor — measure resistance (typically 100-200 ohms)
Inspect motor connector for burnt or corroded pins
Spin drum by hand — resistance or grinding indicates bearing failure
If tachometer tests good, the MCU is not reading the signal — replace MCU
Pro Diagnostic Tip
On the Whirlpool-made 110-prefix Kenmore the tach is just a little pickup coil sitting behind the motor rotor that tells the board how fast the drum turns. It is a cheap, standalone part, so meter it and swap it on its own rather than buying the whole motor when the speed signal drops out.
Repair Difficulty
Professional OnlyEstimated Repair Cost
$200–$425
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Error code F25 is a high-severity issue that can cause further damage to your washer if left unresolved. A licensed technician can diagnose and fix it the same day.
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Kenmore error code F25 indicates: Drive motor tachometer error. This is a high-severity issue affecting your washer.
Check tachometer coil on back of motor — measure resistance (typically 100-200 ohms) Then, Inspect motor connector for burnt or corroded pins Then, Spin drum by hand — resistance or grinding indicates bearing failure There are 1 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
Besides the error code on the display, common signs include: The motor kicks off then stalls a second later; The drum lurches and spins unevenly; Spin speed surges and sags through the cycle. If you notice any of these symptoms, check your washer's display panel for error code F25.
Repair costs for Kenmore F25 typically range from $200 to $425 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.