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Error code reference

Amana Microwave Error Code Err6

RAM error on the high voltage board.

Amana codesAmana microwave codes

RAM error on the high voltage board.

First step from the service manual

Unplug oven for 1 minute, reconnect power, and retest. If code reappears, replace H.V. board.

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

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What Err6 means on a Amana microwave

Err6 on an Amana microwave indicates a RAM (Random Access Memory) error detected on the high voltage board. The high voltage board is a critical control component that governs the magnetron circuit, including the high voltage transformer, capacitor, and diode assembly. The onboard RAM stores operational parameters and control logic data that the board's processor references during cooking cycles. When this memory fails to read or write correctly, the board flags the fault and halts operation to prevent uncontrolled high voltage output.

RAM errors of this type are typically caused by a corrupted or failed memory state on the high voltage board itself. This can result from a power surge, a brief voltage interruption during operation, or a failing component on the board that disrupts the processor's ability to access memory. In some cases, the error is transient and can be cleared by completely removing power from the unit for at least one minute, allowing capacitors to discharge and the board to fully reset.

If the Err6 code returns after power cycling, the high voltage board has a hardware-level RAM failure and must be replaced. Because the high voltage board operates at extremely dangerous voltage levels, typically above 2,000 volts, no component-level repair of the board is recommended in the field. The board should be replaced as a complete assembly. Technicians should discharge the high voltage capacitor before any internal inspection, even after unplugging the unit.

Source: manufacturer service documentation.

Common causes of Err6

  1. 01

    Transient RAM fault from power fluctuation

    Wiring / connection

    A brief power surge, brownout, or interruption during operation can corrupt the RAM state on the high voltage board without causing permanent hardware damage. Unplugging the unit for one minute to fully discharge the board often clears this type of fault.

  2. 02

    Failed high voltage board

    Part replacement

    If the RAM error persists after a full power reset, the memory chip or processor on the high voltage board has failed permanently. The entire high voltage board must be replaced as a unit.

  3. 03

    Power surge damage to board components

    Part replacement

    A significant voltage spike from a lightning strike or utility grid event can physically damage the RAM or related circuitry on the high voltage board, causing a persistent Err6 that cannot be cleared by resetting.

  4. 04

    Intermittent connection or wiring fault

    Wiring / connection

    Loose or corroded connectors supplying the high voltage board with control voltage can cause intermittent communication errors that appear as RAM faults. Inspecting connector integrity and reseating harness plugs to the board may be warranted before replacement.

See the test procedure for each cause

Frequently asked questions about Err6

What does Err6 mean on a Amana microwave?
Err6 indicates a RAM error on the high voltage board inside your Amana microwave. The high voltage board has detected that its onboard memory is not functioning correctly, so the microwave has shut down to prevent unsafe operation. This error can sometimes be caused by a temporary power disruption, or it can indicate a failed board that needs replacement.
Can I fix Err6 on my Amana microwave myself?
The first step you can take yourself is to unplug the microwave for at least one full minute, then restore power and retest. If the Err6 code clears and the microwave operates normally, no further action is needed. If the code returns, the high voltage board must be replaced, and that work should be performed by a qualified technician because the internal components carry extremely dangerous voltage levels even after unplugging.
Will resetting my Amana microwave clear the Err6 code?
A full power reset by unplugging the unit for one minute will clear the Err6 code if the fault was caused by a transient RAM error due to a power fluctuation. However, if the high voltage board has a permanent hardware failure, the code will return immediately or shortly after restoring power. Repeated resets will not resolve a failed board.
Is it safe to use my Amana microwave when Err6 is displayed?
No, you should not attempt to use the microwave while Err6 is active. The error indicates a fault in the high voltage board, which controls the components that generate the microwave energy used for cooking. Operating the unit in this state is not safe and could worsen the fault. Keep the microwave unplugged until the issue is diagnosed and resolved.
How much does it cost to repair an Amana microwave showing Err6?
If the error clears with a simple power reset, there is no parts cost involved. If the high voltage board requires replacement, parts and labor costs typically range from $100 to $250 depending on the specific model and local labor rates. In some cases, particularly with older or lower-cost units, the repair cost may approach the price of a new microwave, so it is worth comparing both options before proceeding.

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