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Error code reference

Frigidaire Dryer Error Code E5C

Voltage too high on control board (washer).

Frigidaire codesFrigidaire dryer codes

Voltage too high on control board (washer).

First step from the service manual

Refer to test (11): have power company check frequency and voltage of incoming power.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What E5C means on a Frigidaire dryer

The E5C error code on a Frigidaire dryer indicates that the control board has detected an excessively high voltage condition in the incoming power supply. Despite the error description referencing a washer, this code appears on Frigidaire dryers and points to an electrical supply problem rather than a failed internal component. The control board continuously monitors line voltage, and when that voltage climbs above the acceptable operating threshold, the board registers E5C to protect the machine from damage caused by over-voltage conditions.

The root cause is almost always external to the appliance itself. Utility power irregularities, including voltage spikes, unstable grid supply, or incorrect service voltage delivered to the home, are the primary suspects. A standard residential dryer in North America expects 240 volts AC at 60 Hz on a dedicated circuit. If the incoming voltage deviates significantly above that level, the control board will flag E5C. Faulty or corroded wiring at the outlet, a failing circuit breaker, or a damaged power cord can also create abnormal voltage readings at the board.

The first diagnostic step is to contact the power company and request that they verify both the frequency and voltage of the incoming service at the meter. This rules out a utility-side issue before any internal diagnostics or parts replacement. If utility voltage is confirmed normal, the next steps involve inspecting the dryer's power cord, wall outlet voltage with a multimeter, and the terminal block connections inside the dryer for signs of arcing, corrosion, or loose wiring.

Source: manufacturer service documentation.

Common causes of E5C

  1. 01

    Utility power supply over-voltage

    Wiring / connection

    The power company may be delivering voltage above the normal 240V AC level to your home. This is the most common cause and requires the utility company to test and correct the incoming service voltage.

  2. 02

    Faulty or failing circuit breaker

    Part replacement

    A worn or failing double-pole breaker in the electrical panel can cause unstable or elevated voltage to reach the dryer's circuit. A licensed electrician can test the breaker and replace it if necessary.

  3. 03

    Damaged or loose wall outlet wiring

    Wiring / connection

    Loose terminal connections or degraded wiring at the dryer's 240V wall outlet can cause abnormal voltage readings. Inspect the outlet for signs of arcing, discoloration, or loose wires.

  4. 04

    Damaged power cord or terminal block connection

    Part replacement

    A compromised dryer power cord or a loose, corroded connection at the dryer's internal terminal block can introduce irregular voltage to the control board. Check for burn marks, melted insulation, or loose terminals.

  5. 05

    Failed control board

    Part replacement

    If all external power sources test within normal range and the error persists, the control board itself may be misreading voltage due to internal component failure. This is the least likely cause and should only be considered after all supply-side factors are ruled out.

See the test procedure for each cause

Frequently asked questions about E5C

What does E5C mean on a Frigidaire dryer?
E5C means the dryer's control board has detected a voltage level that is too high from the incoming power supply. The board monitors line voltage continuously and triggers this code when it exceeds the safe operating range. This is typically a power supply issue rather than a problem with the dryer itself. The first step is to have the utility company check the voltage and frequency of the power being delivered to your home.
Can I fix the E5C error myself?
Some steps are DIY-friendly, such as visually inspecting the power cord, outlet, and dryer terminal block for obvious damage. However, testing incoming line voltage with a multimeter and diagnosing circuit breaker or utility supply issues involves working with high-voltage electricity, which carries serious safety risks. It is best to contact your utility company first and then a licensed electrician if the issue is in your home's wiring.
Is it safe to use my dryer while E5C is displayed?
You should not continue operating the dryer while E5C is active. An over-voltage condition can damage the control board, motor, and other internal components over time. The dryer may also pose a fire or shock hazard if the elevated voltage is caused by a wiring fault. Leave the dryer unplugged until the source of the problem has been identified and corrected.
Will resetting the dryer clear the E5C code?
Resetting the dryer by unplugging it and restoring power may temporarily clear the E5C code, but the error will return if the underlying voltage problem has not been fixed. A reset does not address the root cause. The code will continue to appear until the incoming power supply is confirmed to be within the correct voltage and frequency range.
How much will it cost to repair the E5C error on a Frigidaire dryer?
Cost depends entirely on what is causing the over-voltage condition. If the utility company corrects a supply issue on their end, there may be no cost to you. Electrician labor to inspect or replace a breaker or outlet wiring typically ranges from $100 to $300 or more depending on the repair scope. If the dryer's control board has been damaged by the over-voltage event and requires replacement, that part alone can range from $150 to $400, plus labor.

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