Whether displaying an E31 or E32 error code, Electrolux washing machines signal issues with their pressure sensing systems. These systems carefully monitor water levels to advance cycles properly. However, several factors can cause them to malfunction. This handy guide breaks down the most common culprits behind these codes, such as drainage problems, installation issues, faulty wiring, and defective components. It then provides an effective troubleshooting process to methodically check each part and identify the root cause. Follow these steps to efficiently fix your pressure sensing system and get your Electrolux washer running smoothly again.
Meaning Behind E31 and E32 Error Codes
Electrolux washing machines display error codes on the control panel to indicate issues detected during operation. The E31 and E32 codes point to problems with the pressure sensing system.
E31 Error Code
The E31 code means there is a failure with the electronic pressure switch. This switch monitors the water level inside the outer tub. It allows the washer to advance through fill and drain cycles properly.
When operating correctly, the pressure switch closes once the tub fills to a preset water level. This signals the control board to stop filling and advance to agitation and wash. During drain, the switch opens when water pressure drops below a set point. This tells the control board to stop the drain pump.
So the E31 code likely means:
- The pressure switch is stuck closed when it should be open.
- The switch remains open when it should close once the tub fills.
- There is a wiring problem between the switch and control board.
Any of these issues will prevent the normal operation of fill and drain cycles.
E32 Error Code
The E32 error signifies a problem with the pressure sensor itself. This sensor measures the water level inside the outer tub. It then sends this data to the control board.
The sensor converts water pressure into electrical resistance. Higher pressure equals lower resistance. As the tub fills, the resistance drops. This signals the control board to turn off the water valves once the preset level is reached.
Potential causes for E32 errors include:
- Faulty pressure sensor
- Bad wiring connections
- The control board is not receiving the sensor input
- Blocked pressure hose
Either error code means the control board can’t accurately monitor water levels. This will lead to improper fill amounts, overflow, and other malfunctions.
Potential Causes of E31 and E32 Errors
Several issues can trigger the E31 and E32 error codes on an Electrolux washer. Let’s break down the most common culprits.
Drainage System Problems
Clogged hoses or drains can make the washer think water levels are higher or lower than reality. This fools the pressure-sensing system. Check for:
- Kinked or clogged drain hoses. Remove and inspect the full length.
- Blocked standpipe. Use a pipe cleaner to clear the buildup.
- Clogged pump impeller. Remove debris so it spins freely.
If the washer struggles to drain fully, the pressure switch won’t reset properly. This mimics a failed switch.
Improper Installation
An uneven, loose, or tilted washer can strain components, leading to errors.
- Is the washer perfectly level? Check each foot with a bubble level.
- Does the washer rock or shake excessively during cycles? Stabilize it.
- Are all suspension springs attached firmly?
Faulty Wiring
Electrical issues like loose, corroded, or damaged wires will cause connection problems.
- Inspect wiring harnesses near pressure components.
- Check for rubbed-through insulation and loose terminals.
- Use a multimeter to test for shorts or bad connections.
Defective Pressure Switch
The switch itself may be broken or out of calibration. Test it with a multimeter per the service guide. Replace if necessary.
Failed Pressure Sensor
The sensor could send incorrect water level data. Test it by checking the sensor voltage at the control board. Replace if needed.
Control Board
If the board receives faulty signals, it will show error codes even if components are fine. May need replacement.
Damaged Pressure Hose
Cracks, bulges, kinks, or clogs in the pressure hose can affect water level sensing. Carefully inspect the hose.
By methodically checking each potential cause, you can resolve E31 and E32 errors.
Check Washer Installation
Improper installation is a common cause of strain on washer components. This can lead to error codes and malfunctions.
Let’s walk through the key installation checks:
1. Verify the Floor is Stable
- Washers need a perfectly flat and sturdy floor.
- Is the washer on carpeting or weak floorboards that flex? This allows too much motion.
- Try placing the washer on a plywood platform to minimize vibration and rocking.
2. Level the Washer
- Use a bubble level to check each foot. Turn your feet to adjust.
- Unlevel washers will rock excessively during the high-speed spin cycle.
- Double check level after installing it on a new floor.
3. Inspect the Suspension
- The suspension system supports the washtub.
- Make sure all springs connect the outer tub to the cabinet securely.
- Do you hear the tub banging around inside the cabinet? If so, check the suspensions.
4. Check Utility Line Connections
- Firmly hand-tighten the hot and cold water hoses. Don’t over tighten.
- Make sure the drain hose has no sharp bends and routes to a standpipe properly.
- Securely attach all electrical connectors. Don’t let cords dangle.
5. Verify Interior Connections
- Open the cabinet and inspect the inside.
- Are any wires or hoses loose? Make sure all interior components are firmly connected.
Taking the time to properly install your washer will prevent strain on parts and avoid future error codes.
Verify Correct Drainage
Clogged or faulty drainage can mimic pressure system issues. Let’s go through key drainage checks:
1. Inspect the Drain Hose
- Remove the entire drain hose from the washer and outlet.
- Look for clogs, kinks, or blockages inside the hose.
- Rinse the hose completely if you find debris buildup.
2. Check Drain Hose Installation
- The hose should have no sharp bends or crimps that restrict flow.
- Excess hose length can clog. Cut to the proper size.
- Make sure the hose fits securely on the drain outlet.
3. Standpipe Height
- The standpipe must be at least 24 inches high from the floor. This allows proper siphoning.
- A standpipe that is too low will overflow with drain water.
4. Pump Impeller
- Spin the drain pump impeller by hand to check for obstructions.
- Remove any debris or blockage so the impeller spins freely.
5. Test Drainage Flow
- Run a drain cycle. The washer should be empty.
- If water remains, the drain system needs to be cleared fully.
Checking these areas will help you identify and fix drainage problems that mimic pressure system failures.
Inspect the Pressure Hose
The pressure hose connects the outer tub to the pressure switch. It allows air pressure to build up as the tub fills with water. Let’s go over how to thoroughly inspect this hose.
Check for Cracking or Dry Rot
- Examine the entire outer surface of the hose.
- Look for any cracking or dry rotting of the rubber.
- Even small cracks will lead to leaks and affect water level sensing.
Watch for Bulges and Bubbles
- Bubbles or bulges under the outer surface often mean inner tube failure.
- The inner tube carries the air pressure signal. Any bulges will cause problems.
Rust and Corrosion
- Carefully inspect the metal hose fittings.
- Green corrosion or rust indicates moisture entry into the hose.
- Replace the hose if you see significant rust or corrosion.
Mineral Buildup
- Hard water can leave white mineral deposits inside the hose.
- Look for crusty buildup around fittings and inside the hose.
- Heavy deposits may block airflow.
Kinks and Collapses
- Kinked or collapsed areas of the hose affect air and water flow.
- Straighten any kinks. Replace fully collapsed sections.
Take a few minutes to thoroughly check over the pressure hose. It’s a common failure point and a cheap fix that can resolve E31 or E32 errors.
Recalibrate the Pressure Sensor
The pressure sensor may just need recalibration to resolve error codes. Here’s how to do it:
1. Enter Diagnostic Mode
- Wake up the washer control panel.
- Enter the factory diagnostic mode per your service manual guide. This varies by model.
- You’ll use the mode to test and recalibrate the sensor.
2. Run Sensor Test
- Select the sensor test option from the diagnostic menu.
- The control board will begin testing the pressure sensor. Follow the prompts.
3. Check Sensor Readings
- The test mode will display the sensor’s pressure readings.
- Compare them to the acceptable range listed in your service manual.
4. Recalibrate if Needed
- If readings are off, you’ll be prompted to recalibrate the sensor.
- This aligns the sensor levels with the control board.
5. Verify Correct Operation
- Re-test the sensor after calibrating it. The readings should now be in range.
- If not, the sensor will likely need replacement.
6. Exit Diagnostics Mode
- Once finished testing, exit diagnostic mode to resume normal operation.
- Run a quick test cycle to verify the error code is cleared.
Inspect the Pressure Switch Wiring
Let’s walk through how to thoroughly check the pressure switch wiring in a few easy steps:
1. Unplug and Access the Switch
- Unplug the washer for safety.
- Carefully remove the bottom front panel to access the pressure switch.
2. Disconnect the Wiring
- Locate the wire harness leading to the pressure switch terminals.
- Disconnect the wires so you can fully inspect the wiring.
3. Check for Damage
- Examine the entire length of each wire for any damage.
- Look for rubbing, bare wires, cracked insulation, etc.
- Damaged wires can cause resistance and connection issues.
4. Test for Faults
- Use a multimeter to check each wire for continuity and shorts.
- Test between the wire terminals and ground.
- This will detect any hidden wire faults.
5. Replace if Needed
- If any wiring is damaged or has faults, go ahead and replace it.
- New switch wiring will ensure clean electrical connections.
6. Reconnect Wires
- Once the wiring is confirmed good, firmly reconnect all wires to the proper terminals.
Checking the switch wiring is a fast way to rule out electrical issues that can cause E31 or E32 errors. Take your time inspecting each wire.
Test the Pressure Switch
The pressure switch can fail and cause E31 errors. Let’s go through how to test it with a multimeter:
1. Unplug and Disconnect
- Unplug the washer for safety.
- Remove the wires from the pressure switch terminals.
2. Check Resistance
- Set your multimeter to read ohms.
- With no water in the tub, check the resistance between the switch terminals.
3. Compare to Manual
- Consult your service manual for the correct ohm range with an empty tub.
- The switch should show high resistance, indicating an open circuit.
4. Fill the Tub
- Allow the tub to fill partially with water.
- Check the ohm reading again.
5. Verify Values
- The manual will list the expected range with water present.
- Resistance should now be much lower, showing a closed circuit.
6. Replace if Needed
- If readings are way off, the switch needs replacement.
- A defective switch won’t signal fill levels properly.
Be sure to compare your measurements to the service guide. This will confirm if the pressure switch needs to be replaced.
Inspect the Pressure Sensor
The pressure sensor can fail and cause E32 errors. Let’s go over how to thoroughly inspect it.
1. Locate the Sensor
- The pressure sensor is typically mounted to the washer cabinet near the control console.
2. Check the Wiring
- Make sure the wiring harness is firmly plugged into the sensor housing.
- Inspect the wires for any rubbing, cracks, or damage.
3. Replace Damaged Wiring
- Don’t try to splice pressure sensor wires. It’s best to replace the entire harness if it is faulty.
4. Clear Debris from Tubing
- The small plastic tubing connects the sensor to the washer tubing system.
- Make sure the tubing is clear of obstructions. Blow it out if needed.
5. Check for Vibration
- Run a test fill and listen closely to the sensor.
- You should feel/hear vibrations from the water flow. No vibration likely means a clog.
6. Reconnect Wiring
- If the sensor checks out, firmly reconnect all wiring harnesses.
- Use zip ties to secure wires to prevent rubbing.
Check the Pressure Sensor Voltage
Testing the sensor voltage can confirm if the pressure sensor needs replacement. Follow these steps:
1. Unplug and Disconnect
- Unplug the washer for safety.
- Disconnect the wiring harness from the pressure sensor.
2. Access the Connection Point
- Follow the sensor wiring into the console housing.
- Locate where it plugs into the main wiring harness.
3. Measure Voltage
- Set your multimeter to DC volts.
- Place the probes on the corresponding wires at the connection point.
- Check the voltage during fill and drain cycles.
4. Compare to Manual
- Consult the appliance service manual.
- It will list the correct sensor voltage range during operation.
5. Evaluate the Readings
- If the voltage is way outside the specifications, the sensor likely failed.
- Incorrect voltage means the control board receives faulty water level data.
6. Replace the Sensor if Needed
- Out-of-range voltage indicates a bad pressure sensor.
- Go ahead and replace it to resolve E32 errors.
Be sure to compare your voltage measurements to the service manual specs. This will confirm if the sensor needs to be replaced.
Replace the Control Board
If all other components test well, the main control board may need to be replaced to resolve E31 or E32 errors.
1. Unplug the Washer
- Unplug the washer from the electrical outlet for safety.
2. Disconnect All Wiring
- Remove the console panel to access the control board.
- Carefully disconnect all wiring harnesses and pressure components from the board terminals.
3. Remove Mounting Screws
- Use a Phillips screwdriver to remove any mounting screws securing the control board.
- These may be along the top or sides of the board.
4. Install New Board
- Carefully align the new control board in place and reinstall the mounting screws.
5. Reconnect Wiring
- Refer to the wiring diagram in your service manual as you reconnect each wiring harness.
- Make sure every wire goes to the proper terminal.
6. Reinstall Console
- Once everything is connected, reinstall the console and any other components.
7. Power Up and Test
- Plug in the washer and verify it powers up.
- Run a test cycle to confirm the fill and drain system now operates properly without errors.
Replacing the control board is an easy fix if it’s receiving bad data from a failed component.
Conclusion
The E31 and E32 error codes on your Electrolux washer can be frustrating. But with some focused troubleshooting, you can get to the bottom of the issue.
The key is to methodically isolate each part of the pressure sensing system. Check the simplest potential causes first:
- Inspect hoses and drainage for clogs
- Check installation and leveling
- Test wiring connections and harness
Then, move on to test components:
- Pressure switch resistance
- Sensor voltage at the control board
- Pressure hose condition
Look for any damage, blockages, or out-of-spec operation. Compare your measurements to the service manual for guidance.
With a logical approach, you can identify the failed part. Common fixes include:
- Clearing drain obstructions
- Replacing the pressure hose
- Swapping out the pressure switch
- Installing a new pressure sensor
Don’t forget to recalibrate the pressure sensor in diagnostic mode first. A simple reset may get the washer working again.