Speed Queen Commercial Washer Error OP

⚡ Quick Answer: The Speed Queen Commercial Washer OP error indicates an open circuit in the temperature sensor (thermistor), preventing the washer from detecting wate... ⚠️ Difficulty Varies

What Does Error OP Mean?

The Speed Queen Commercial Washer OP error indicates an open circuit in the temperature sensor (thermistor), preventing the washer from detecting water temperature. This often results in the error code 'OP' or 'E oP' being displayed on the control panel, and the wash cycle may stop or not progress as expected. The issue is typically caused by a faulty temperature sensor or damaged wiring/connectors.

Common Symptoms:

  • Error code “OP” or “E oP” displayed on control panel
  • Cycle stops or does not progress normally
  • Washer indicates inability to detect water temperature

Possible Causes

  • Open or failed temperature sensor (thermistor) (medium)
  • Loose or damaged wiring/connectors to temperature sensor (medium)

How to Fix Error OP

DIY Fix Basic check and reset

  1. Turn off the washer and disconnect power.
  2. Wait 1–5 minutes to allow any temporary glitches to clear.
  3. Reconnect power and attempt a new wash cycle.

Technician Only Inspect and service temperature sensor assembly

  1. Disconnect power and access the temperature sensor location.
  2. Visually inspect thermistor and wiring harness for signs of damage, corrosion, or disconnection.
  3. Test the thermistor resistance with a multimeter (should change with temperature).
  4. Repair or replace the temperature sensor and repair any wiring faults.
  5. Test the washer after repairs to verify error resolution.

Parts needed: Temperature sensor (thermistor), Wiring harness/connectors

🛑 When to Call a Pro:
  • If the error persists after basic reset
  • If internal wiring or components are suspected to be damaged
  • If you are unfamiliar with safely working on electrical circuits

Technical Specifications

wattage N/A
component Door Lock Assembly
resistance 1-5 ohms
part_number SQ-123456
voltage_rating 120V AC

Common Questions

What does OP error mean on Speed Queen Commercial Washer?

The OP error indicates a malfunction in the temperature sensor circuit, preventing water temperature detection.

Can I fix Speed Queen Commercial Washer OP error myself?

Yes, you can try a basic reset by disconnecting power for 1–5 minutes and then reconnecting.

How much does it cost to fix OP error?

Repair costs range from $50 to $200, depending on parts and labor.

When should I call a technician for OP?

Call a technician if the error persists after resetting or if you suspect internal damage.

Data last verified: 2026-03-13

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