Amana Menumaster Err6 Error Code

What does Amana Menumaster Err6 mean?

Err6 is a service code shown on the display of an Amana Menumaster commercial microwave when the control detects a failed high-voltage (H.V.) board. The control stops the cook cycle and posts Err6 to flag that the board driving the magnetron circuit has failed; the manual's corrective action is to replace the H.V. board before the oven heats normally again.

Symptoms

• Display shows Err6 during operation.
• Oven does not heat or will not start a cook cycle.
• Magnetron does not energize when cooking is selected.
• Code returns after a power cycle when the board is faulty.

Common causes

• Failed high-voltage (H.V.) board.
• Damaged relay or drive components on the H.V. board.
• Fault caused by an electrical event in the high-voltage circuit.

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Diagnostic steps

1. Power down and retest first

   Unplug the oven for one minute, reconnect power, and retest. If the unit operates properly, no service call is required.

2. Observe high-voltage safety procedures

   Check grounding and discharge the high-voltage capacitor before any repair; 208/230 VAC is present in the H.V. board, power relay, and low-voltage transformer primary.

3. Confirm the fault persists

   Re-run a cook cycle after the reset to verify Err6 returns rather than being a one-time event.

4. Replace the high-voltage board

   The manual's corrective action for Err6 is to replace the H.V. board with the correct part, then verify normal heating.

When to call a professional

Replacing the high-voltage board means working in a circuit carrying 208/230 VAC with a high-voltage capacitor that must be discharged first. The manual restricts these repairs to a trained service technician who follows the eight caution steps. If you are not qualified to service commercial microwave high-voltage circuits, stop after the power-cycle retest and call an authorized Amana Menumaster service agent.