3
Ordinary faults and solutions:
.
Fault description
Possible fault reasons
Solution methods
WronQ installation
Install the batteries by the correct polarity
direction
Low batterv
Reo lace new batteries
LCD without displaying
Contact with dealer or manufacturer for
Circuit fault
maintainina
Retardation time
No response for target
doesn't end
Wait for the retardation time finish
gas
Contact with dealer or manufacturer for
Circuit fault
maintainino