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Error code reference

Frigidaire Dryer Error Code E5A

High temperature on heat sink on control board (washer).

Frigidaire codesFrigidaire dryer codes

High temperature on heat sink on control board (washer).

First step from the service manual

Refer to test (8).

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

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What E5A means on a Frigidaire dryer

The E5A error code on a Frigidaire dryer indicates that the heat sink on the control board has reached an excessively high temperature. The control board contains power components mounted to a heat sink, which is designed to dissipate thermal energy generated during normal operation. When the temperature of this heat sink exceeds safe operating limits, the dryer's onboard diagnostics trigger the E5A fault to protect the electronics from permanent damage.

This fault is rooted in the thermal management of the control board's power section. The heat sink is typically bonded to or in close contact with high-load components such as the motor drive transistors or inverter circuitry. If airflow around the control board is restricted, if the board itself has a failing component drawing excess current, or if ambient temperatures inside the machine are abnormally elevated, the heat sink temperature can climb beyond acceptable thresholds.

Diagnosing this fault requires following test procedure 8 as outlined in the technical documentation. This test is designed to evaluate the condition of the control board and associated thermal components. Technicians should check for obstructions blocking ventilation around the control housing, inspect for signs of burning or discoloration on the board, and verify that the dryer's internal airflow pathways are not restricted. A control board that continues to overheat after clearing airflow issues is likely failing internally and will require replacement.

Source: manufacturer service documentation.

Common causes of E5A

  1. 01

    Restricted airflow around control board

    Wiring / connection

    Lint buildup or physical obstructions blocking ventilation around the control board housing can prevent heat from dissipating properly. Inspect the area around the control board for debris or blocked vents.

  2. 02

    Failing or shorted control board component

    Part replacement

    An internal component on the control board drawing excessive current will generate abnormal heat at the heat sink. Look for visible signs of burning, swelling, or discoloration on the board surface.

  3. 03

    Elevated ambient temperature inside cabinet

    Wiring / connection

    If the dryer's exhaust vent is partially blocked, overall internal temperatures rise and can contribute to heat sink overheating. Check the exhaust duct for lint blockages or kinks.

  4. 04

    Degraded thermal interface material

    Part replacement

    The thermal compound or pad between the heat sink and the control board components can dry out over time, reducing heat transfer efficiency. This is typically identified by inspecting the contact surface during board removal.

  5. 05

    Control board requiring replacement

    Part replacement

    If all external causes are ruled out and the fault persists, the control board itself may have an internal failure causing sustained overheating and will need to be replaced.

See the test procedure for each cause

Frequently asked questions about E5A

What does E5A mean on a Frigidaire dryer?
The E5A code means the heat sink on the dryer's control board has detected a high temperature condition. The dryer shuts down to protect its electronics from heat damage. The fault points to a thermal management problem involving the control board and its associated components. Diagnosis should begin with test procedure 8 as specified in the technical guidelines.
Can I fix the E5A error myself, or do I need a technician?
Some causes of E5A, such as a blocked exhaust duct or lint buildup near the control board, can be addressed by a knowledgeable DIYer. However, diagnosing internal control board faults and performing test procedure 8 requires familiarity with appliance electronics and safety practices. If the board itself is failing, replacement is best handled by a qualified technician.
Is it safe to keep using my dryer when the E5A code is showing?
No, you should not continue operating the dryer while the E5A code is active. The error indicates the control board is overheating, which can cause permanent damage to electronics and potentially create a fire risk. Leave the dryer unpowered until the cause has been identified and corrected.
Will resetting the dryer clear the E5A error code?
A reset may temporarily clear the E5A code, but the fault will return if the underlying cause is not corrected. Simply resetting the unit without addressing the heat sink overheating issue can lead to repeated faults and progressive damage to the control board. Always resolve the root cause before returning the dryer to service.
How much does it cost to repair an E5A error on a Frigidaire dryer?
Repair costs vary depending on the cause. Clearing a blocked vent or removing debris costs little to nothing beyond labor time. If the control board requires replacement, parts alone typically range from $80 to $250 or more depending on the model, with professional labor adding additional cost. Getting a diagnostic assessment first helps determine whether repair or replacement is the better option.

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