Midea TJE17GS7-S00N0A, Service Manual

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U02 Motor
Driver NC
No
communica-
tion can be
made
between the
SRB and
Motor driver.
Loss of
communica-
tion between
SRB and
Motor driver
more than 10
second.
Display error
message until
communica-
tion resumes
SRB and
Motor driver
connection
cable
unplugged or
damaged.
Faulty SRB or
Motor driver
E-1 Magnetron
1/2_1
Inverter
leakage
Before
magnetron
start energies,
magnetron
current was
too high.
Display error
message
Faulty
Microwave
inverter
U25 Motor Over
Temperature
Detects if the
driver is
Driver's
temperature
sensor
Display error
message
Ambient
overheat
>85
℃
U26 Motor Loss
Phase
The drive lose
motor phase
The drive lose
motor phase
Display error
message
The motor is
unplugged or
damaged
U22 Motor Low
Voltage
Detects if the
power supply
voltage is
outside
specification
The power
supply to the
oven voltage
sensor on the
SRB measures
too low
Display error
message until
system is
power cycled.
Incorrect
mains voltage.
Faulty Motor
Driver.
CB Common
Breakdown
No
communica-
tion can be
made
between the
TFT screen
and SRB
Loss of
communica-
tion between
the TFT
screen and
SRB more
than 10
second.
TFT
screen/SRB
connection
cable
unplugged or
damaged.
Faulty TFT
screen or SRB
Display error
message until
communica-
tion resumes
operating
above
temperature
measured
>120
℃
D11 zero Error Detects if SRB
cannot
receive power
supply
frequency
signal more
than 10
second
Loss of power
supply
frequency
Faulty SRB. Display error
message
U23 Motor Over
Voltage
Detects if the
power supply
voltage is
outside
specification
The power
supply to the
oven voltage
sensor on the
SRB measures
too high
Incorrect
mains voltage.
Motor Driver.
Display error
message until
system is
power cycled.
U21 Motor Over
Current
Motor over
current
The motor
current
measured by
Motor Driver
was >12A
Motor
blocked
Display error
message until
system is
power cycled.
E-5 Magnetron
1/2_5
Magnetron
failed to
energies
The current
measured by
the current
sensing
transformer
was none.
Failure of
components
in the
microwave
circuit.
Display error
message
12