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SYMPTOM
Load does not turn on or off.
Note that the load will switch ON
ONLY WHEN A LOW AMBIENT
LIGHT LEVEL IS SENSED by the
photo sensor. Also note the Photo
sensor has deliberate time delay
(up to 2 minutes.
Load turns on and off at the wrong
time. Note that the load will switch
ON ONLY WHEN A LOW AMBiENT
LIGHT LEVEL IS SENSED by the
photo sensor.
Display does not light up or shows
dim, erratic or meaningless data.
Timer gains time on regular basis.
Timer loses time
Timer set points or time of day are
altered sporadically.
Timer loses program during power
outage
1. Wiring diagram example for
120 volt installation.
2. Wiring diagram example for
240 volt installation.
3. Wiring diagram example for
277 volt installation.
CAUTION: MAKE ALL CONNECTIONS TO PHOTO
SENSOR OUTSIDE OF ENCLOSURE.
DO NOT APPLY
POWER TO PHOTO SENSOR CONNECTIONS.
TIMER POWER
TIMER POWER
1 1 2 2 3 3 4 4 5 5
HOT
HOT
120 VOLT
120 VOLT
NEUTRAL
NEUTRAL
PHOTO SENSOR
PHOTO SENSOR
PHOTO SENSOR
PHOTO SENSOR
1.
158ET8611
PAGE 4 DIAGRAM #1
PAGE 4 DIAGRAM #1
Trouble Shooting
POSSIBLE CAUSE(S)
1. Mode selector not in AUTO.
2. Fault in wiring.
3. Load power is out.
1. Time and day of week on dis-
play read-out incorrect.
2. Program is in error.
1. Power supply deficient
1. Spikes on power line cause
extra counts.
1. Timer power out.
2. Timer faulty.
1. Electrical noise from timer
contacts.
2. Electrical noise on contacts
from other sources on con-
trolled line.
1. Battery(s) defective.
2. Batteries not seated.
9 9 10
10 11
11 12
12 13
13 14
14
CONTACTOR COIL
CONTACTOR COIL
LOAD
LOAD
NEUTRAL
NEUTRAL
120 VOLT
120 VOLT
HOT
HOT
INTERMATIC INCORPORATED
SPRING GROVE, ILLINOIS 60081-9698
CORRECTIVE ACTION
1. Turn to AUTO or MAN. Press ON then OFF.
2. If ON indicator light switches on and off, but load stays off, check connections
and wiring to load. Make sure supply voltage is provided to output relay common termi
nals (10 and/or 13) as shown in diagrams below..
3. If ON indicator does not switch on and off power may be out. Check power supply
to timer and load. If power is on remove batteries. If light still does not operate,
return for servicing.
1. If wrong, set correct time. If correct, review set points (Switching times.) See*
2. Review set points. If set points are correct, return for servicing.
1. Check power supply. If power supply is OK, check batteries. Try removing batteries.
Discharged or faulty batteries may drain unit of power even with power on. Check
polarity and seating;. Let stand 10 minutes or more with the power on to charge
batteries. Reset timer. RESET clears the stored program and sets the clock to Sun.
10 a.m. Turn to AUTO Or MAN. Press recessed RESET button with pen or pencil
and hold for two seconds. While pressing: ON indicator light will be lit and display
will show a colon. When released, display should show 1˙10:00. If unit does not
clear properly try resetting with batteries removed and timer power on. Check
battery voltage, defective cells will measure less than .2 volt. If unit does not clear
properly, return for servicing. Make sure timer power connection are appropriate for
supply voltage. See diagrams below.
1. a. Change to quieter line.
b. Put in line filter or isolation transformer.
c. Check for good grounds.
1. Correct fault.
2. Return for repair.
1a. Use surge suppressors.
b. Use isolation relay.
2a. Use surge suppressors on contacts elsewhere.
b. Use RFI line Filter.
c. Use isolation relay.
1. Unclip battery connection from timer, check battery pack voltage. Pack should
measure approx. 5 volts or 1.25 volts per cell. Replace defective cell(s). It is best to
replacle all 4 cells.
2. Check for battery seating and connections.
TIMER POWER
TIMER POWER
1 1 2 2 3 3 4 4 5 5
240 VOLT
240 VOLT
PHOTO SENSOR
PHOTO SENSOR
2.
TIMER POWER
TIMER POWER
PAGE 4 DIAGRAM #2
PAGE 4 DIAGRAM #2
1 1 2 2 3 3 4 4 5 5
277 VOLT
277 VOLT
PHOTO SENSOR
PHOTO SENSOR
3.
4.
PAGE 4 DIAGRAM #3
PAGE 4 DIAGRAM #3
9 9 10
10 11
11 12
12 13
13 14
14
CONTACTOR COIL
CONTACTOR COIL
LOAD
LOAD
240 VOLT
240 VOLT
9 9 10
10 11
11 12
12 13
13 14
14
CONTACTOR COIL
CONTACTOR COIL
LOAD
LOAD
277 VOLT
277 VOLT
MADE AND PRINTED IN U.S.A.
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