Speed Queen Washer Error Code Ep: Meaning and Fix
Reading the washer display
On a washer the code appears on the digital display or as a pattern of flashing cycle lights. Note it exactly, including any dashes or sub-codes, then unplug the washer for five minutes and run a short drain cycle to see whether it returns. Speed Queen shows two characters such as Ed or E1 on the control.
Speed Queen, from Alliance Laundry Systems, builds commercial-grade home laundry. Its washers and dryers use short error codes such as E1 or Ed, and the control is simpler than most consumer brands, which makes diagnosis more direct. The codes apply to model numbers such as DR7, DC5 and TR7; check the label on your unit to confirm yours.
What causes Ep
- A temperature or level sensor that has drifted out of range or failed open/short
- A loose or corroded sensor connector or broken lead wire
- A control board input that misreads the sensor signal
- Clogged air tube
How to fix it
- Unplug the appliance and locate the sensor named for this fault in your service sheet or parts diagram.
- Inspect the sensor, its lead wire and plug for damage, moisture or corrosion; clean contacts and reseat the connector.
- Blow through the pressure hose.
- Measure the sensor resistance with a multimeter and compare it with the value expected at room temperature.
- Replace the sensor if the reading is open, shorted or far from spec.
- Power back up and run a short cycle to confirm the code does not return.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Washer Switch Assembly | 203935 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does error Ep mean on a Speed Queen washer?
The pressure sensor is not working. Exact behavior can vary by model and software version; confirm against your own manual.
Can I keep using my washer while Ep is showing?
Often yes for a short while, but with reduced performance because the control is running blind; get it checked before it causes a heating or flooding problem.
How do I clear Ep, and can I fix it myself?
Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. Parts here involve electronics, heating or sealed components, so consider a qualified technician if the basic checks do not clear it.
Other Speed Queen washer codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including TR7, TC5, FF7, LWNA52, AWNE92.