Simpson Dryer Error E31

⚡ Quick Answer: The Simpson dryer E31 error code indicates a malfunction related to the thermistor, which can lead to improper heating or inconsistent temperature rea... ⚠️ Difficulty Varies

What Does Error E31 Mean?

The Simpson dryer E31 error code indicates a malfunction related to the thermistor, which can lead to improper heating or inconsistent temperature readings. If this error persists, it may be necessary to investigate further, as it could affect the dryer’s overall performance.

Possible Causes

  • Thermistor
  • Wiring issues
  • Control board malfunction

How to Fix Error E31

DIY Fix General dryer troubleshooting

  1. Turn the dryer off and unplug it for a few minutes, then plug it back in to see if the error clears.
  2. Check and clean the lint filter and make sure the dryer vent and exhaust are not blocked (common for many dryer issues).
  3. Ensure the load is not oversized or overly wet, and try a shorter or different drying cycle.

Technician Only Professional diagnostics

  1. Refer to the specific service manual for the exact Simpson dryer model to see if an internal error/timer board diagnostic code table exists.
  2. Check internal wiring, control board connectors, and sensors that might produce a fault code.
  3. Test safety and thermal components (e.g., thermostats, high-limit cut-outs) if overheating or safety trips are suspected.

Parts needed: dryer control board, sensors, wiring harness

🛑 When to Call a Pro:
  • If the dryer repeatedly displays the E31 code and normal resets or lint/vent cleaning do not clear it.
  • If there is unusual noise, burning smell, or overheating – stop using the dryer immediately and contact a qualified technician.

Next step

Choose the next step for E31

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Main Control Board

The central brain of the appliance that controls all components, cycles, and timings.

Typical part-only price
$120 - $280
DIY difficulty
Medium
Estimated time
20-40 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Technical Specifications

wattage N/A
component Thermistor
resistance 10-15 kΩ
part_number SIM-THM-12345
voltage_rating 240V AC

Common Questions

What does E31 error mean on Simpson dryer?

The E31 error indicates a thermistor malfunction, leading to heating issues.

Can I fix Simpson dryer E31 error myself?

Yes, you can try resetting the dryer and checking the lint filter and vent.

How much does it cost to fix E31 error?

The repair cost is variable based on diagnosis and parts needed.

When should I call a technician for E31?

Call a technician if the error persists after troubleshooting or if unusual noises occur.

Sources & References

Data last verified: 2026-04-23

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