Step
Key
Description
25
CLR
Duration vanishes and two dashes appear.
26
0, 2
Key in pulse duration of 2 seconds.
27
E
Enters duration for circuit 3; advances to circuit
4. “01 4” is displayed.
28
CLR
Duration vanishes and two dashes appear.
29
0, 2
Key in pulse duration of 2 seconds.
30
E
Enters duration for circuit 4.
31
RUN
Exits pulse duration mode.
Troubleshooting Tips
16
Problem
Nothing happens when a
setpoint occurs to turn a
load ON or OFF.
Manual override does not
work.
Clock display is locked up,
garbled, or meaningless.
Control does not operate
after programming.
Solution
• Review programmed set-
points making sure the
day has not been
skipped.
• Check input power to
control.
• Insure the clock is not in
a holiday mode (Day 8).
• Check if manual override
changes the load's state
(i.e. ON to OFF, OFF to
ON). If it does not see
next problem/solution.
• Check the load for proper
wiring. Remember, the
EC74/50S contacts
switch only what is
applied to them. (Dry or
isolated contacts.)
• Disconnect battery and
input power to the con-
trol for 1 minute. Re-
apply power and repro-
gram.
• If programming was per-
formed (changing clock
time or entering a set-
point) the control will not
update itself. Override
the desired circuit until
the next setpoint.
