ACP Amana ACE14 / MCE14 Oven Error 1U / Error 1F: Memory Not Found
Error 1U / Error 1F on an Amana ACE14 or MCE14 touch pad speed-cook oven means the chassis memory was not found. Unplug the oven for one minute and reconnect power. The maker says that if it then runs properly, no service call is needed.
Medium: the oven cannot load its programs, but a one-minute unplug often restores it.
- Code
- Error 1U / Error 1F
- Maker
- ACP Amana
- Equipment
- High-speed ovens
- Applies to
- ACE14 / MCE14 (touch pad speed-cook oven)
What does ACP Amana error 1u / error 1f mean?
The ACE14 and MCE14 keep their menu on an EZ Card, and the chassis memory lives there. On startup the control looks for that memory. If it cannot find it, the display shows Error 1U / Error 1F, and the oven cannot load its programs. The usual reasons are physical or electrical. An EZ Card harness plug may have worked loose from its socket, the EZ Card board may have failed so that it no longer reports its memory, or a power dip may have interrupted the memory read. The maker's instruction is the simplest one: unplug the oven for one minute, reconnect power and test it. If it then operates properly, no service call is needed. That works when the cause was only a momentary interruption. If the error comes back, the harness or the card is the next place to look. Note whether the code came after the oven was moved or the EZ Card was handled, because that points straight to the connector. The EZ Card board sits near high voltage, so the oven stays closed.
Affected models and control systems
This applies to the Amana ACE14 and MCE14 touch pad speed-cook ovens, as covered in the ACP Commercial Service and Training Manual. Error 2 on the same ovens is a different problem: memory found but not programmed.
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
- Error 1U or Error 1F on the display
- The oven will not load its menu
- The error follows a move or a power dip
- The oven runs after a one-minute unplug
Possible causes
Listed in ACP Amana's documentation
- EZ Card harness plug loose in its socket
- EZ Card board failed and no longer reporting its memory
- Power dip interrupting the chassis memory read
- Chassis memory on the EZ Card not found
Other likely causes — what usually sits behind error 1u / error 1f on this control. A technician confirms which one it is before any part is replaced.
- A harness plug jarred loose when the oven was pulled out for cleaning
- A momentary brownout at start-up that interrupted the memory read
Safe checks before calling for service
- Unplug the oven for one minute, reconnect power and test it.
- If it then operates properly, no service call is needed, as the maker says.
- Note whether the code came after the oven was moved or the EZ Card was handled.
- If it comes back, call us.
- Keep the covers on; the EZ Card board sits near high voltage.
How a technician diagnoses error 1u / error 1f
- Read the error and confirm it repeats after a clean power-up.
- Check supply voltage and any recent power events.
- Inspect and reseat the EZ Card harness plug.
- Test the EZ Card board and confirm its memory is detected.
- Replace the EZ Card or harness only after the check.
- The EZ Card board sits near high voltage, so opening the oven is not safe for an operator.
- A loose plug and a failed card give the same error, and the connection has to be checked to tell them apart.
- Replacing the card means the menu has to be loaded again with the maker's tool.
How error 1u / error 1f differs from similar codes
Error 2 on these ovens means the memory is found but holds no menu. Error 1U and Error 1F mean the memory is not found.
Technical reference
- Document
- ACP Commercial Service and Training Manual
- Edition
- October 2012, 16400018
- Models / control
- ACE14 / MCE14 (touch pad speed-cook oven)
- Section
- Display Diagnostics - Error Codes, printed p. 33 (PDF p. 60)
- 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.
Related ACP Amana high-speed oven error codes
Are 1U and 1F different?
The manual lists them together as the same problem, chassis memory not found.
Does the oven need service if one unplug fixes it?
The maker says no. Watch for it returning.
Is the EZ Card the same as the main board?
No. It is a separate board that stores the menu.
Need help with ACP Amana error 1u / error 1f?
A technician confirms the cause on site and gives you the price in writing before any work starts.