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ACP MXP22QTT - Service Mode Component Diagnostics; Testing Magnetrons, Heaters, Fans, and RTDs; Voltage, Memory, Error History, and PIN Info

ACP MXP22QTT
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1 and Convection Heater. This circuit is
protected by fuse F4
Both Magnetrons
Both systems can be started and
stopped by pressing the Start or Stop
icon
The current amperage being drawn by BOTH
HV systems. Look for consistent readings
with Convection Heater. These are
protected by Fuses F3 & F4.
Convection Heater
Heater can be stopped and started
by pressing the Start Stop icon
The current amperage being drawn by the
Convection Heater. 7-15 amps is considered
normal. This circuit protected by fuse F5
Radiant Heater
Heater can be stopped and started
by pressing the Start Stop icon.
The current amperage being drawn by the
Convection Heater. 10-20amps is
considered normal. This circuit is protected
by fuse F6
Convection Fan Low
Convection Fan Motor Low Speed
can be stopped and started by
pressing the Start or Stop icon.
The current amperage being drawn by the
Convection Fan Motor on low speed. <2
amps and fan motor operating noise is
considered normal. This circuit is protected
by fuse F2.
Convection Fan High
Convection Fan Motor High Speed
can be stopped and started by
pressing the Start or Stop icon.
The current amperage being drawn by the
Convection Fan Motor on low speed. <3
amps and a high speed fan motor operating
noise is considered normal. This circuit is
protected by fuse F2.
Cooling Fan
Motors can be stopped and started
by pressing the Start Stop icon.
The current amperage being drawn by both
the Cooling Fan Motors. 1-3 amps is
considered normal. A failed Cooling Fan
motor will likely result in a G2 Error Code
Antenna Motors
Both Antenna Motors can be started
by pressing the Start icon. NOTE:
pressing Stop icon will not stop the
antenna motors. They continue to
run until Service Mode is exited.
Antenna Motors draw very low amperage. It
is normal to have 0 amps displayed. Service
provider should visible inspect operation.
RTD
Resistive Thermal Devices (aka Temp
Sensors) Press and the
current temperature sensed by the
two RTD’s along with the maximum
temperature recorded by both.
The Radiant RTD is located at the back
center of oven. The Convection RTD is
located on the upper left by the Convection
Element. To reset maximum temperature
reading, press and hold the Max Convection
RTD for several secondstemperature will
change to the current temperature sensed.
Memory
Attached Memory Devices
Press and the following will display:
USB Present or Absent
SD Card Present or Absent
Error History
Chronological List of Errors
Experienced by the Control
Press and the following will display:
Error Code Date, Time, and Code (see Error
Code List in this section)
Voltage Switching
Displays the voltage as sensed by the
control.
Pressing has no effect.
Temperature Offset
The degree of offset programmed
into control to synchronize control
to cavity temperature.
Press and the following will display: The
amount of temperature offset programmed
by the factory
Pin Code
Displays the 4 Digit Pin Code
Pressing has no effect.
29

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