ACP MRX2QT - Error Codes and Troubleshooting

ERROR CODES
Code
Description
Corrective Action
A2
Invalid Display Firmware
Update Firmware or Replace Touch Control
B1
Touch Screen Error
Replace Touch Control
B2
Wifi Error
Reset Touch Control. If continued failure Replace
Touch Control
B3
Wifi Error
Reset Touch Control. If continued failure Replace
Touch Control
D0
Convect Temp Sensor (RTD)-Open
Replace Temp Sensor (Top Left of Oven)
D1
Convect Temp Sensor (RTD)-Shorted
Replace Temp Sensor (Top Left Oven)
G0
Oven Exceeded Max. or Min. Temperature
After oven cools, press the cavity thermal cutout’s
reset button found on the bottom, back right hand
corner of oven. If unable to reset, Replace the Cavity
Thermal Cutout. NOTE: Cutout may trip if subjected to
sub-freezing temperatures
G2
Open Magnetron TCO
Board Senses an Open Magnetron TCO. Inspect Cooling
Fans Operation and Airflow, TCO’s and Wiring.
H0
Zero Cross Failure
No or Intermittent Voltage at J1 Connector on Main
Control Board.
H2
Invalid System State
Main Control Board
H3
Invalid EEPROM/FLASH
Main Control Board
I1
Current Sense-No/Low Amps from Microwave
Circuit
Perform Service Test (Magnetron #1 & #2)
Suspect Door Switches not fully activated or weak door
hinges. Secondary/Monitor Switch assembly is
adjustable.
V0
Low Voltage
<188vac Detected by the Main Control Board
V1
High Voltage
>263vac Detected by the Main Control Board
Important Note: Error Code History cannot be cleared. Oldest codes will automatically be deleted when
the history log is full.
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