Robam CQ935H01 - Common Faults and Fault Dropping; Electrical Schematic Diagram

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Common Faults and Fault Dropping
The following table lists common faults. Please confirm and rectify the faults
according to the instructions listed in the table. If the fault persists or you cannot
confirm the cause of the fault, please contact the local dealer or after-sales service
center. For your safety, we remind you not to disassemble and repair by yourself.
E3 displayed
on the screen
E5 displayed
on the screen
Heating failure
The temperature change is less
than 5°C within 8 minutes after
the operation and does not reach
80% of the set temperature
Temperature sensor fault
Short circuit or open circuit
The fault can be eliminated
automatically after entering the
standby state. If it fails again, it is
recommended to check whether the
connector is loose or the heating
pipe is abnormal after power off.
Restart after troubleshooting. If the
fault cannot be eliminated, please
contact professional personnel for
maintenance.
It is recommended to check whether
the connector is loose or whether
the temperature sensor is damaged
after power off. Restart after
troubleshooting. If the fault cannot
be eliminated, please contact
p r o f e s s i o n a l p e r s o n n e l f o r
maintenance.
Fault phenomenon
Causes
Handling method
E6 displayed
on the screen
Communication is faulty
Abnormal communication
between panel and power board
It is recommended to check whether
the communication line or program
matches after power off. Restart
after troubleshooting. If the fault
cannot be eliminated, please
contact professional personnel for
maintenance.
ERR displayed
on the screen
Frequency converter fault
Abnormal microwave
communication or microwave
inoperation or abnormal
operation
It is recommended to check whether
the connector is loose or whether
the frequency converter is
abnormal. Restart after
troubleshooting. If the fault cannot
be eliminated, please contact
professional personnel for
maintenance.
Compact Oven with Microwave Compact Oven with Microwave
Electrical Schematic Diagram
Over-temperature
protector
L
N
Plug
Filter board
Lighting lamp
Cooling fan
Antenna motor
NO
COM
Microswitch 1
Microswitch 2
NO
COM
Upper heating tube
L
N
Frequency
conversion
board
Magnetron
Power pan
Keyboard plate
Door-controlled switch
Temperature sensor
1
2
3
4
5
L
N
MotorLight Fan
NC
Over-temperature
protector
Over-temperature
protector
220-240V~
50-60Hz
解冻
复热
双驱烤
组合
功能
默认
火力
默认
温度
默认
重量
默认时间
火力范围
温度范围
1档：300W
2档：550W
3档：700W
4档：800W
5档：1000W
1档：140℃
2档：160℃
3档：180℃
1档
2档
3档
4档
5档
5档
5档：1000W
2档：550W
/
/
/
/
/
/
20min
30s
20min
20min
1min50s
1min36s
100g
200g
/
/
/
/
3档：
180℃
/
/
/
/
/
5档：
1000W
/
1档
5档
微波
1000W
微波
烤烧
微波
550W
解冻
复热
双驱烤
组合
烤烧
微波
时间范围
加热管
800W
微波变频
器1000W
照明灯
2.5W
搅拌电机
4W
散热风机
18W
重量
范围
功能
5s-30min
1-90min
5s-90min
1-90min
1-90min
/
/
/
/
200g
300g
400g
500g
600g
100g
200g
300g
400g
500g
600g
700g
800g
900g
1000g
1100g
1200g
1300g
1400g
1500g
1600g
1700g
1800g
1900g
2000g
2100g
2200g
2300g
2400g
2500g
2600g
2700g
2800g
2900g
3000g
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
◎
◎
◎
◎
◎
◎
5s-90min
5s-90min
5s-90min
必选
受温度控制
注：
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