Booking today · Miami, Los Angeles, Houston, New York and San Diego · three-hour arrival windows Independent commercial equipment repair · Every maker on this site Mon–Fri 7:00 AM - 8:00 PM · Sat 8:00 AM - 6:00 PM
(844) 393-0816 Schedule a Visit
Error code · ACP Amana · High-speed ovens

ACP Amana High-Speed Oven Error Code D1: Thermocouple Shorted

D1 on an Amana Xpress AXP22 or MXP22 touch panel oven means the thermocouple reads shorted, so the overheating check cannot be trusted and the oven stops soon after a program starts. Pull the plug, let it cool, plug it back in, and write down how long the oven ran before D1 appeared.

Medium · inspection needed

High: the overheating safeguard cannot be trusted, so the oven stays off until tested.

Schedule a Visit(844) 393-0816
Code
D1
Maker
ACP Amana
Equipment
High-speed ovens
Applies to
AXP22 / MXP22 (touch panel)

What does ACP Amana error code D1 mean?

The thermocouple gives the control a second opinion on cavity heat, confirming that the oven is not overheating. A shorted circuit looks like a reading that cannot be real, and the control responds with D1 and stops heating. The oven stops soon after a program starts. A short between the thermocouple wire and metal is the usual cause, and it can come and go with heat. The manual lists a lead pinched where the panel closes on it, insulation worn through, moisture at the connector shorting the signal, and a main board input that reads the thermocouple as a short. The maker's step is to pull the plug, let the oven cool and plug it back in, and to write down how long the oven ran before D1 appeared. A time that gets shorter or longer from day to day says something about how heat moves a damaged wire. Do not remove covers or bend wires. The oven stays off until a technician has tested it, because the circuit that checks for overheating is not working.

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 spell this reading D-1.

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

  • D1 on the display
  • The oven stops soon after starting
  • No heating
  • The run time before the stop changes

Possible causes

Listed in ACP Amana's documentation

  • Thermocouple lead pinched where the panel closes on it
  • Thermocouple wire insulation worn through
  • Moisture at the thermocouple connector shorting the signal
  • Main board input reading the thermocouple as a short

Other likely causes — what usually sits behind error code D1 on this control. A technician confirms which one it is before any part is replaced.

  • A thermocouple lead caught where a side panel was refitted, rubbing through its insulation over time
  • Wash water that has reached the thermocouple plug and left a film across its terminals

Safe checks before calling for service

✓ What an operator can do
  1. Pull the plug, let the oven cool and plug it back in.
  2. Write down how long the oven ran before D1 appeared.
  3. Do not remove covers or bend wires.
  4. The oven stays off until we have tested it.
  5. Tell us whether the oven was washed down or serviced recently.

How a technician diagnoses error code D1

  1. Read the code and note the run time.
  2. Trace the thermocouple lead for pinch points and worn insulation.
  3. Measure for a short, cold and after warming.
  4. Inspect the plug for moisture and check the board input.
  5. Repair or replace the part the test points to.
! Leave this to a technician
  • A short that depends on heat is hard to find without a meter and repeated testing.
  • Bending wires to find it can worsen the damage.
  • The circuit is the overheating safeguard, so the oven has to stay off until it is tested.

How error code D1 differs from similar codes

D0 is the open thermocouple reading and D2 the out-of-range reading. D1 is the shorted one.

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

Related ACP Amana high-speed oven error codes

Error 1U / Error 1FACP Amana ACE14 / MCE14 Oven Error 1U / Error 1F: Memory Not FoundError 2ACP Amana ACE14 / MCE14 Oven Error 2: Memory Not ProgrammedError 3ACP Amana ACE14 / MCE14 Oven Error 3: High-Voltage BoardError 4ACP Amana ACE14 / MCE14 Oven Error 4: High-Voltage BoardError 5ACP Amana ACE14 / MCE14 Oven Error 5: Panel Short or Wrong BoardError 6ACP Amana ACE14 / MCE14 Oven Error 6: Options ScrambledError 7-OACP Amana ACE14 / MCE14 Oven Error 7-O: Temperature Sensor OpenError 7-SACP Amana ACE14 / MCE14 Oven Error 7-S: Temperature Sensor ShortedDoor OpenACP Amana ACE14 / MCE14 Oven Message: Door OpenError - Control TCO open / Oven too hotACP Amana ACE14 / MCE14 Oven: Control TCO Open / Oven Too HotA0ACP Amana High-Speed Oven Error Code A0: Main BoardA2ACP Amana High-Speed Oven Error Code A2: Display Board
D1Questions about ACP Amana error code D1
What does the run time tell you?

If the oven runs less each time, a damaged wire may be touching metal sooner as heat builds.

Could a refitted panel be the cause?

Yes. A lead pinched where a panel closes is a common cause of a short.

Can I keep using the oven?

No. The overheating check cannot be trusted while D1 shows.

Book a visit

Need help with ACP Amana error code D1?

A technician confirms the cause on site and gives you the price in writing before any work starts.

(844) 393-0816
Open the booking form
☎ Call our office ▤ Schedule a Visit