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10. TROUBLESHOOTING GUIDE
10-1. Troubleshooting Based on Pilot Lamp Indications
Phenomenon
Pilot lamp fails to light or flash.
Red pilot lamp does not stay lit
(continues to flicker) after
battery has been connected.
Pilot lamp remains green (red
fails to light) after battery has
been connected.
Pilot lamp indicates abnormality
by flashing red rapidly (at 0.2
second intervals.)
10-2. Troubleshooting and Repair Procedures
(1) Trouble mode (A)
Pilot lamp fails to light or flash.
Check with tester
Varistor damaged by incorrect
connection of high voltage
power supply.
Replace the varistor and fuse.
(1) Faulty AC cord
(2) Blown fuse (3.15 A) on primary side
(1) Poor connection of (T) or (S) terminal
(2) Faulty battery (open circuit)
(3) Faulty case (B) (PCB)
(1) Poor connection of (T) or (S) terminal
(2) Faulty case (B) (PCB)
(1) Battery connected in reverse direction
(2) Faulty battery (short-circuit, or open circuit)
(3) Faulty case (B) (PCB)
Is rated
NO
voltage applied
to the plug ?
YES
Is there
continuity between
NO
the blades of the
AC cord plug ?
YES
Faulty internal circuit.
Replace case (B) (PCB)
YES
Typical causes
Apply rated voltage.
an open circuit in
the AC cord ?
NO
Is the fuse
YES
on the primary side
Blown ?
NO
Is
NO
the varistor
damaged ?
Faulty internal circuit.
Replace case (B) (PCB)
--- 16 ---
Check procedures
Refer to trouble mode (A).
Refer to trouble mode (B).
Refer to trouble mode (C).
Refer to trouble mode (D).
Is there
YES
Replace the AC cord
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