Speed Queen Washer Error Code Er, OF

Er, OF is an overflow error code on a Speed Queen washer. It appears when the machine previously displayed an OF, St warning code prompting the user to press Start/Pause, but that button was not pressed within five minutes. The code indicates the washer detected or anticipated an overflow condition and shut down after the response window expired. A 15-second power reset is the recommended first step to clear it.

You should not continue running the washer until the cause of the overflow condition is understood. If the code was triggered simply because Start/Pause was not pressed in time, resuming use after a reset is generally safe. If an actual overflow occurred, water may have reached components or the floor, and the inlet valve or pressure switch should be inspected before running another cycle to avoid water damage.

If the Er, OF code returns repeatedly, focus on the water inlet valve, the pressure switch, and the drain system. Verify the inlet valve fully closes when the machine is not filling, check the pressure switch sensing hose for kinks or blockages, and inspect the drain hose and pump filter for obstructions. Also confirm you are using the correct type and amount of detergent, as excess suds can trigger the overflow sensor.

Yes, unplugging the machine for at least 15 seconds allows the control board to reset and clears the stored Er, OF fault. After restoring power, the washer should be ready to operate. However, if the code returns on the next cycle without a missed button prompt, a component issue such as a faulty inlet valve or pressure switch is likely the cause and should be investigated.

Repair costs depend on the root cause. If the issue is only the missed Start/Pause prompt, there is no repair cost beyond your time. Replacing a faulty water inlet valve typically runs between $50 and $150 for the part, with labor adding $75 to $200 if a technician is hired. A pressure switch replacement is generally less expensive, with parts ranging from $20 to $60 plus labor.