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Error code · ACP Amana · High-speed ovens

ACP Amana High-Speed Oven Error Code G2: Magnetron TCO or Fan

G2 on an Amana Xpress AXP22 or MXP22 touch panel oven points to a magnetron thermal cut-out or to the cooling motor. Take the plug out, let the oven cool, clean the air filter, clear the vents, and try once. If G2 comes back, stop, because the magnetrons hold a charge even when unplugged.

Medium · inspection needed

High: the microwave circuit is protecting itself from heat, and its parts hold a charge.

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Code
G2
Maker
ACP Amana
Equipment
High-speed ovens
Applies to
AXP22 / MXP22 (touch panel)

What does ACP Amana error code G2 mean?

G2 appears in two forms on these ovens. One points to a magnetron thermal cut-out, or TCO, the safety switch that opens when a magnetron gets too hot. The other points to the cooling motor, which moves the air that keeps the magnetrons cool. The maker table sends the technician to the service test for the magnetrons or the cooling fan. The two forms are linked, because a cooling motor that is slow or blocked lets the magnetron heat until the TCO opens. The manual's list names the cooling motor and fan blade, the air filter and vents blocked, the magnetron TCO and the magnetrons. The owner steps are to take the plug out and wait for the oven to cool, pull out the air filter, clean it and put it back, then clear anything stacked against the vents. A blocked filter makes a magnetron overheat. Plug in and try once. If G2 comes back, stop. The microwave circuit uses high voltage and is for a technician only.

Affected models and control systems

This applies to the Amana Xpress AXP22 and MXP22 touch panel combination ovens, as covered in the ACP Commercial Service and Training Manual. The older AXP20/MXP20 write this reading G-2.

Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.

What you may notice

  • G2 on the display
  • Microwave cooking stops
  • The oven works for a short time and stops
  • Boxes or trays stacked against the vents

Possible causes

Listed in ACP Amana's documentation

  • Cooling motor or fan blade not moving air
  • Air filter or vents blocked
  • Magnetron thermal cut-out opened
  • Magnetron failed

Other likely causes — what usually sits behind error code G2 on this control. A technician confirms which one it is before any part is replaced.

  • Cartons or equipment stacked against the oven's vents so air cannot leave the cooling path
  • A fan blade loosened on the motor shaft, which spins without moving air

Safe checks before calling for service

✓ What an operator can do
  1. Take the plug out and wait for the oven to cool.
  2. Pull out the air filter, clean it and put it back, then clear anything stacked against the vents.
  3. Plug in and try once.
  4. If G2 comes back, stop; the magnetrons hold a charge even when the oven is unplugged.
  5. Tell us what stood beside or on the oven.

How a technician diagnoses error code G2

  1. Read the code and check whether the cooling motor starts.
  2. Measure airflow across the magnetrons with the filter clean.
  3. Test the magnetron TCO for continuity cold.
  4. Test the magnetrons after discharging the oven safely.
  5. Replace the motor, TCO or magnetron that fails.
! Leave this to a technician
  • The magnetrons hold a charge even when the oven is unplugged, which makes opening the body dangerous.
  • The microwave circuit uses high voltage and is for a technician only.
  • A cut-out that trips again points to airflow or a failing motor, which needs testing.

How error code G2 differs from similar codes

G0 on the same oven reports the maximum temperature being exceeded. G2 is the magnetron TCO and cooling motor entry.

Technical reference

Document
ACP Commercial Service and Training Manual
Edition
December 2011, 16400012
Models / control
AXP22 / MXP22 (touch panel)
Section
Display Diagnostics - Error Codes: AXP20/MXP20 (hyphenated codes, M-0 to M-2) printed p. 58 (PDF p. 65); AXP22/MXP22 printed p. 74 (PDF p. 81)
Checked
October 2026

We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.

→Same maker

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G2Questions about ACP Amana error code G2
Does G2 always mean a bad magnetron?

No. A blocked filter or a weak cooling motor often causes it, so airflow is checked first.

Can I clean the filter and try again?

Yes, once. If G2 returns, stop using the oven.

Is G2 the same as G-2?

Yes in meaning. G-2 is how the older AXP20/MXP20 spell it.

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