Speed Queen Commercial Dryer Error Code E:OP: Open Temperature Sensor
E:OP means the control sees a broken circuit in the temperature sensor wiring on a Speed Queen single or stacked dryer. Let the dryer cool, check the lint screen, and do not open any panel. If the code returns, call us for service.
High: the dryer cannot control heat and will not dry reliably until the circuit is repaired.
- Code
- E:OP
- Maker
- Speed Queen
- Equipment
- Dryers
- Applies to
- Single/stacked dryer electronic control (DRY716C family)
What does Speed Queen error code E:OP mean?
A dryer controls heat by reading a temperature sensor, a small part whose electrical resistance changes with temperature. The control reads that sensor continuously, and a healthy circuit always gives a reading within a believable range. E:OP is shown when the circuit looks broken, like a cut wire or an unplugged connector, so no signal arrives at all (display text: E:OP). Without a usable temperature reading, the dryer cannot regulate heat the way it should. The result is that it may stop heating or end the cycle early, and the display shows the code. The manual names three possibilities: a broken wire or loose plug in the sensor circuit, a sensor that has failed open, or a control input that no longer reads the circuit. Nothing in this description points at the burner, the exhaust or the drum, though a clogged exhaust is still worth ruling out because it affects dryness. If your dryer burns gas and you smell it, leave the building and call the gas utility.
Affected models and control systems
Speed Queen single and stacked dryers with the electronic control (DRY716C family). E:SH is the opposite case, a shorted sensor circuit.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- E:OP on the display
- Clothes come out damp because heat is missing or cut short
- The cycle ends early or the dryer stops
Possible causes
Listed in Speed Queen's documentation
- Broken wire or loose plug in the temperature sensor circuit
- Temperature sensor failed open
- Control sensor input no longer reads the circuit
Other likely causes — what usually sits behind error code E:OP on this control. A technician confirms which one it is before any part is replaced.
- A sensor lead stressed by vibration at the point where it passes through the cabinet
- A connector corroded by damp laundry-room air
Safe checks before calling for service
- Let the dryer cool with the door closed.
- Clean the lint screen and make sure the exhaust is not visibly crushed behind the machine.
- At any gas smell, step outside and call the gas utility from there.
- If E:OP returns, call us and do not open panels; note which cycle was running.
How a technician diagnoses error code E:OP
- Confirm E:OP and whether it appears on a cold start or only after heat-up.
- Check the sensor connector and wiring for breaks or loose seating.
- Measure sensor resistance at room temperature and compare with the part's specification.
- Check continuity of the harness between sensor and control.
- Replace the sensor or harness only after the test, then test the control input.
- The sensor circuit is wired next to the burner or heater and line voltage, so it must be tested with the machine opened by a technician.
- Resistance readings only mean something when compared with the correct specification for this sensor.
- On gas models, work near the burner area belongs with someone trained on gas appliances.
How error code E:OP differs from similar codes
E:SH is the shorted version of the same sensor circuit; OP and SH without the colon appear on a different readout style.
Technical reference
- Document
- Single and Stacked Dryers Troubleshooting DRY716C, Part No. 513447, April 2010, Error Codes (p.29)
- Edition
- Part No. 513447, April 2010
- Models / control
- Single/stacked dryer electronic control (DRY716C family)
- Section
- Error Codes (p.29)
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Speed Queen dryer error codes
Can I run the dryer with E:OP showing?
No. It cannot regulate heat without a sensor reading, and it may stop on its own.
Will E:OP clear after the dryer cools?
It may disappear while cold, but a broken circuit usually returns once heat is requested.
Is E:OP the same as OP?
They describe the same open sensor idea on this dryer line; the readout style differs.
Need help with Speed Queen error code E:OP?
A technician confirms the cause on site and gives you the price in writing before any work starts.