Frigidaire Washer Error Code E38
Air chamber clogged or pressure sensor defective.
Air chamber clogged or pressure sensor defective.
First step from the service manual
Check air chamber, replace pressure sensor.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for E38.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What E38 means on a Frigidaire washer
The E38 error code on a Frigidaire washer indicates a fault within the water level sensing system, specifically pointing to either a clogged air chamber or a defective pressure sensor (also called a pressure switch). This system works by trapping air in a small chamber connected to the tub via a hose. As the tub fills with water, the rising water compresses the air in the chamber, and the pressure sensor reads that compressed air pressure to determine the current water level. When the system fails to report accurate readings, the control board generates E38 to flag the malfunction.
The most common physical cause is a blockage in the air chamber or the small-diameter hose connecting it to the tub. Soap residue, lint, and mineral deposits can accumulate inside this hose or chamber over time, preventing accurate pressure changes from reaching the sensor. When the passage is partially or fully obstructed, the sensor cannot detect the correct water level, which can cause the washer to overfill, underfill, or halt mid-cycle.
If the air chamber and hose are clear, the pressure sensor itself may be faulty. The sensor is an electromechanical component that translates air pressure into an electrical signal for the control board. A failed sensor can produce out-of-range or erratic signals even when water level conditions are normal. Diagnosing between a clogged chamber and a defective sensor typically involves visually inspecting and clearing the hose and chamber first, then testing the sensor's electrical output or substituting a known-good unit.
Source: manufacturer service documentation.
Common causes of E38
- 01
Clogged air chamber hose
Wiring / connectionSoap scum, lint, or mineral buildup inside the small hose connecting the tub to the air chamber blocks airflow to the pressure sensor. Disconnect the hose and inspect it visually or blow through it to check for obstructions.
- 02
Blocked air chamber
Wiring / connectionThe air chamber itself can accumulate residue that prevents it from accurately trapping and transmitting air pressure changes. Removing and rinsing the chamber often resolves this without part replacement.
- 03
Defective pressure sensor
Part replacementThe pressure sensor may have failed electrically or mechanically, producing incorrect signals to the control board even when the air path is clear. If cleaning the hose and chamber does not clear the error, the sensor likely needs to be replaced.
- 04
Kinked or disconnected air hose
Wiring / connectionPhysical damage or a loose connection at either end of the air hose can interrupt the pressure signal just as effectively as a clog. Inspect the full length of the hose for kinks, cracks, or loose fittings.
- 05
Control board communication fault
Part replacementIn less common cases, the control board may misinterpret or fail to receive the signal from an otherwise functional pressure sensor. This is typically considered only after the air chamber, hose, and sensor have been ruled out.
Frequently asked questions about E38
What does E38 mean on a Frigidaire washer?
Can I fix E38 on my Frigidaire washer myself?
Is it safe to keep using my washer while E38 is displayed?
How much does it cost to repair an E38 error on a Frigidaire washer?
Will resetting my Frigidaire washer clear the E38 error?
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