Admiral Washer Error Code 38: Pressure Transducer Air... | appliancefaults.com

Technical Background:

error code 38 typically indicates a problem with the pressure transducer, which is responsible for sensing the water level in the washer tub. The pressure transducer sends a voltage signal to the main control board (MCU) proportional to the water pressure. The MCU uses this signal to control the water fill and drain functions. The voltage path involves a 5V DC reference voltage from the MCU to the transducer, which returns a signal voltage back to the MCU.

Symptoms:

The washer displays error code 38 and may not fill or drain properly. The wash cycle might be interrupted, or the washer may not start at all. The homeowner might notice water level inaccuracies.

Possible Causes:

Blocked or kinked pressure transducer air tube.
Disconnected air tube from the tub or pressure transducer.
Faulty pressure transducer.
Wiring harness issue between the pressure transducer and the main control board (MCU).
Defective MCU.

Solution:

1

Unplug the washer from the 120V AC outlet and turn off the water supply.
2

Locate the pressure transducer, usually near the bottom of the washer cabinet. It has a small air tube connected to it.
3

Inspect the air tube for kinks, clogs, or disconnections. Disconnect the tube from both the tub and the transducer and blow through it to check for obstructions.
4

If the tube is clear, reconnect it securely to both the tub and the pressure transducer.
5

Check the wiring harness connecting the pressure transducer to the MCU for any loose connections or damaged wires. Use a multimeter to check continuity of the wires.
6

If the wiring is good, use a multimeter to test the pressure transducer's resistance. Consult the service manual for the correct resistance range. A reading outside of the range indicates a faulty transducer.
7

If the transducer is faulty, replace it with a new one. Reassemble the washer and plug it back in. Run a test cycle to see if the error code is cleared.

Safety Warning:

Always disconnect the washer from the power source before performing any repairs. Use Lock-Out/Tag-Out (LOTO) procedures. Be aware of potential electrical shock hazards when working with electrical components. Wear appropriate safety glasses and gloves.

Prevention:

Periodically inspect the pressure transducer air tube for kinks or damage. Avoid overloading the washer, as excessive weight can stress the water level sensing system. Run a washer cleaning cycle with a washer cleaner every month to prevent buildup in the tub and drain lines.

Expert Tip:

Some Admiral washers have a diagnostic mode that allows you to test the pressure transducer. Enter service mode by pressing and holding the start/pause and cycle select buttons simultaneously for 3 seconds. Navigate to the pressure transducer test using the cycle select button. The display will show the current water level reading. Manually filling the tub slightly should change the reading.

Frequently Asked Questions

•Where exactly is the pressure transducer located in my Admiral washer?

The pressure transducer is usually located near the bottom of the washer cabinet, often on the side or back panel. It's connected to the tub with a small rubber or plastic air tube.

•What is the typical resistance range for a working pressure transducer on this Admiral model?

Refer to the service manual for your specific Admiral washer model. Typically, the resistance ranges from 1000 to 3000 ohms, but this can vary. If you don't have the manual, try searching the model number online along with 'service manual' or 'technical sheet' to find the specifications.

•If the air tube is clear and the pressure transducer tests good, what's the next most likely cause of error code 38?

If the air tube and transducer are fine, the next most likely cause is a wiring issue between the transducer and the main control board (MCU), or a faulty MCU itself. Inspect the wiring harness carefully for breaks or loose connections. As a last resort, the MCU might need replacement.

Admiral Washer Error Code 38: Pressure Transducer Air Tube Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where exactly is the pressure transducer located in my Admiral washer?

•What is the typical resistance range for a working pressure transducer on this Admiral model?

•If the air tube is clear and the pressure transducer tests good, what's the next most likely cause of error code 38?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: