11. Possible Faults and their Remedies

Description of defect, external symptomsProbable ReasonRemedyNotes
Indicator not lighted
No output impulses
Bad contact with the battery
Defective or discharged battery
Check battery contacts
Replace battery with fully-charged one
Begavior of apparatus differs from that
described in this manual
Discharged battery
Faulty apparatus
Replace battery with fully-charged one
Check apparatus in test mode according to section 8

Note: If the fault is not connected with the battery, the apparatus should be returned to the factory to be repaired.