EXPLODED VIEW
TROUBLESHOOTING GUIDE
5
A. No displays or indicators lit.
Unit unplugged.
Plug unit in.
Store's circuit breaker blown.
Reset breaker.
Defective transformer.
Replace Main Circuit Board.
Circuit inoperable.
Replace Main Circuit Board.
B. Absence of Audio Alarm.
Speaker inoperable.
Replace Speaker.
Circuit inoperable.
Replace Main Circuit Board.
C. Unit will not enter program
All channels are still counting.
Wait until channels are in stop
mode. Display does
mode.
not show
"Prog".
Logo Switch inoperable.
Replace Switch Panel.
D. Unit enters program mode.
The channel is still counting.
Wait until channel is in stop mode.
Display shows
"Prog"
, but
Arrow Switch inoperable.
Replace Switch Panel.
cannot change times.
Circuit inoperable.
Replace Main Circuit Board.
E. Unable to start, stop, or store
Circuit inoperable.
Replace Switch Panel. If
timer presets in program mode.
problem persists, replace Main
Missing or abnormal characters
Circuit Board.
in displays.
CAUSE
SOLUTION
PROBLEM
1
2
3
4
5
6
7
8
9
1 0
740-521revA
Printed in USA 3/06 © 2006
