Frigidaire Dishwasher Error Code E:27

E:27 is an under-voltage fault, meaning the dishwasher is detecting supply voltage below its acceptable operating range of approximately 98 to 120VAC. The power module monitors incoming voltage and shuts down operation when the voltage is too low to protect internal components. This is typically an electrical supply issue rather than a problem with the dishwasher itself.

No, you should not attempt to run the dishwasher while E:27 is active. Operating an appliance under low voltage conditions can damage the motor, control board, and other components. Address the electrical supply issue first and confirm voltage is within the acceptable range before resuming use.

Repair costs vary widely depending on the cause. Tightening a loose wiring connection may cost little to nothing if done yourself, while hiring an electrician to inspect or replace branch circuit wiring or a circuit breaker could range from roughly 75 to 300 dollars or more. If the power module itself requires replacement, parts and labor costs will add to that total.

Start by checking all wiring connections between your home's electrical panel and the dishwasher's power module harness connector for looseness or corrosion. Use a multimeter to verify that the supply voltage at the connector is within the 98 to 120VAC range. If voltage is low, the issue must be corrected at the circuit breaker, wiring, or utility supply level before the dishwasher will function properly.

Resetting the dishwasher may temporarily clear the error code, but the fault will return if the underlying low-voltage condition is not corrected. The power module will continue to detect insufficient supply voltage and re-trigger the E:27 fault. A permanent fix requires resolving the electrical supply problem at its source.