Xiaomi/Roborock 7 frequently occurring error codes solution/robotcleaner

Xiaomi/Roborock 7 frequently occurring error codes solution/robotcleaner
First, if there is error 1, laser sensor (LDS) error
Error 3 is a problem with the left or right wheel.
Error 4 is when there is a problem with the floor detection sensor (cliff sensors)
Error 9 is when the dust bin or filter is not recognized.
Error 10 is a filter error
Error 13 is a charging problem.
Error 18 is an error due to a fan motor (suction motor) error.
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