Admiral Tumble Dryer Error Code L2: Low Line Voltage... | appliancefaults.com

Technical Background:

The dryer's Main Control Unit (MCU) constantly monitors the incoming line voltage. If the voltage drops below a pre-determined threshold, typically around 208V AC on a 240V AC system, the MCU will trigger the L2 error code to protect the dryer's components from damage. The MCU uses voltage sensing circuits to monitor L1 and L2.

Symptoms:

The homeowner reports the dryer is not heating properly, taking excessively long to dry clothes, or displaying an error code 'L2' on the control panel. The dryer may start, but then shut down unexpectedly.

Possible Causes:

Loose wiring connections at the terminal block.
A tripped breaker in the breaker panel.
Defective or undersized power cord.
Shared circuit with other high-draw appliances.
Faulty control board (MCU).
Poor electrical service from the utility company.

Solution:

1

Disconnect power to the dryer at the breaker panel.
2

Using a Phillips head screwdriver, access the dryer's terminal block (usually at the rear of the unit).
3

Inspect all wiring connections at the terminal block for looseness or corrosion. Tighten or replace as needed.
4

Check the voltage at the dryer's receptacle with a multimeter. It should read approximately 240V AC (between the two hot legs) and 120V AC from each hot leg to neutral.
5

Verify the breaker supplying the dryer is not tripped or faulty. Replace if necessary.
6

Inspect the power cord for damage. If damaged, replace with a new UL-listed dryer cord of the correct gauge (usually 10 gauge).
7

If voltage is still low, suspect a faulty control board (MCU). Replacement may be necessary by a qualified technician.

Safety Warning:

Disconnect power to the dryer at the breaker panel before performing any repairs. Use proper Lock-Out/Tag-Out (LOTO) procedures. High voltage (240V AC) is present at the terminal block and receptacle. Contact a qualified electrician if you are not comfortable working with electricity.

Prevention:

Regularly inspect and tighten wiring connections at the terminal block. Avoid overloading the circuit with other appliances. Ensure proper ventilation around the dryer to prevent overheating, which can stress electrical components.

Expert Tip:

Some Admiral dryers have a diagnostic mode. To enter, press and hold the Start/Pause and Signal buttons simultaneously for 3 seconds. The display will show diagnostic codes, and you can cycle through them using the cycle selector knob.

Frequently Asked Questions

•What is the acceptable voltage range for the dryer's receptacle?

The acceptable voltage range is typically 220V AC to 240V AC between the two hot legs, and 110V AC to 120V AC from each hot leg to neutral.

•How do I test the continuity of the power cord?

Disconnect the power cord from both the dryer and the outlet. Use a multimeter set to continuity mode to check for continuity between each prong of the cord and the corresponding wire (L1, L2, Neutral, Ground) inside the dryer. There should be continuity, and no shorts between any wires.

•How do I know if the MCU is faulty?

If all other potential causes have been ruled out (proper voltage at the receptacle, good wiring, no tripped breakers), and the dryer consistently displays the L2 error code, the MCU is likely faulty. A qualified technician can further diagnose the MCU with specialized test equipment.

Admiral Tumble Dryer Error Code L2: Low Line Voltage Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the acceptable voltage range for the dryer's receptacle?

•How do I test the continuity of the power cord?

•How do I know if the MCU is faulty?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: