--- 8 ---
(2) Failure Mode (B) steps and repair procedures
Pilot lamp on, charger
does not go off.
Is the
temperature range
appropriate for charging?
10 C --- 40 C
(50 F --- 104 F)
Is the battery warm ?
Battery is defective.
Replace battery.
YES
YES
YES
NO
NO
Is the
resistance between
(-) and (S) terminals of the
warm battery 2 K
Ω
to 50 K
Ω
?
Charge at appropriate
temperature.
10 C --- 40 C
(50 F --- 104 F)
Check the resistance
between (-) and (S)
terminals of the warm
battery with a tester.
Defective charger
Disconnect AC plug
from power supply
and disassemble
charger.
Are there any
defective wiring
connections?
Replace printed
circuit board.
Printed circuit
board is defective.
YES
NO
NO
Battery is defective.
Replace battery.
Correct wiring.
Summary of Contents for UC 18SD
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