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TABLE 1. Description of Modes

Mode

Description

AUTO

Switches ON/OFF  events at programmed times. 

RDM 
(Random)

Varies each event up to 30 minutes from the 
programmed time

MANUAL

Programmed events are ignored but are saved in 
memory.

6.  When the modifications are complete, press 

SET ON/OFF 

 EVENTS

 to scroll through all 7 ON/OFF events (including blank 

 

events) and return to the time of day  screen (flashing colon).

Deleting an Event

Follow this procedure to delete an event.

1. Press

 SET ON/OFF EVENTS 

to scroll to the unwanted ON 

 

or OFF event.

2. Press 

DELETE

. The screen displays dashes to indicate the 

 

ON or OFF event is deleted.

 

NOTE:

 If necessary, repeat this procedure to delete both 

 

ON and OFF settings for the event.

3.  When the modifications are complete, press 

SET ON/OFF

 

 

EVENTS

 to scroll through all 7 ON/OFF events (including blank 

 

events) and return to the time of day screen (flashing colon).

Resetting the Timer

In case of a time malfunction or to delete all previous settings, the 

unit can be reset.

To reset the timer, use a pen or blunt object to Press 

RESET

. The 

timer resets and 

deletes all the settings in the unit

.

Replacing the Battery

One AA size alkaline battery is needed to complete this procedure.

1.  Unplug the timer power cord.

2.  From the rear of the timer, remove the retaining screw and 

 

battery cover.

3.  Install the new AA battery (observe polarity).

4.  Verify that the controller display activates.

5.  Take one of these actions.

 

IF THE DISPLAY... 

THEN...

 

Activates 

 

Go to step 6.

 

Does not activate, 

Make sure the battery is not dead and 

 

 

 

 

is installed with the proper polarity. 

 

 

 

 

Adjust as needed to get the screen to 

 

 

  activate.

6.  Replace the battery cover and retaining screw.

7.  Go to 

Setting the Calendar, Clock and Astronomic Time

.

 

NOTE: 

If the timer is going to be stored for an extended 

 

period of time, it is recommended to remove the battery to 

 

preserve the life of the battery

.

TABLE 2. Selecting Operating Mode.

Mode

Description

ON

Load is ON permanently in MANUAL mode.

ON AUTO

AUTO has been selected, load is ON, and will 
stay ON until the next scheduled OFF event.

ON RDM

RDM mode has been selected, load is ON, 
and will stay ON until the next scheduled 
RDM OFF event

OFF

Load is OFF permanently in MANUAL mode

OFF AUTO

AUTO mode is selected, load is OFF, and will 
stay OFF until the next scheduled ON event.

OFF RDM

RDM mode has been selected, load is OFF, 
and will stay OFF until the next scheduled 
RDM ON event.

 5.  Take one of these actions.

 

IF YOU SELECTED... 

THEN...

 

A specific hour, 

Go to step 6.

 

Sunrise or Sunset, 

Press 

SET ON/OFF EVENTS

 

 

 

to advance to setting OFF 

 

 

time for event and go to step 8.

 6.  Press 

DATE/TIME/NEXT

. The minute digit flashes.

 7.  Press 

+

 or 

-

 to set the minute for the event.

 8.  Press 

SET ON/OFF EVENTS

 to set the OFF Event. Dashed

 

lines appear to indicate no event is set for the event number.

 9.  Press 

DATE/TIME/NEXT

. The screen displays 12:00 AM 1 

 

OFF (OFF Event 1).

10. Press 

+

 or 

-

 to scroll to the days of the week that the program will run.

11. Press 

DATE/TIME/NEXT

. The hour flashes.

12. Press 

+

 or 

-

 to scroll to the desired hour or AM Sunrise or PM 

 

Sunset for the event.

13. Take one of these actions.

 

IF YOU SELECTED... 

THEN...

 

A specific hour, 

Go to step 14

 

Sunrise or Sunset, 

Go to step 16 

14. Press 

DATE/TIME/NEXT

. The minute digit flashes.

15. Press 

+

 or 

-

 to set the minute for the event.

16. If you want to set another ON/OFF pair, repeat steps 1 to 16.

17. If you are finished setting events, press and hold 

SET ON/OFF 

 EVENTS

 until the time of day screen appears. 

 

NOTE:

 If you leave the timer idle in Calendar or Event setting 

 

modes for 5 minutes, the timer will automatically switch to AUTO 

 

operating mode after saving your settings.

Daily Operation

Once the initial settings are completed, follow this procedure 

to select the operation mode in the timer.

1. Press 

SELECT FUNCTION

 to scroll to the desired operation 

 

mode. See Table 2 for selection of modes.

 

NOTE:

 In order for the time switch to run the programmed 

 

events, the operation mode must be set to 

AUTO

 or 

RDM

.

Reviewing or Modifying an Event

Follow this procedure to modify an event.

1. Press 

SET ON/OFF EVENTS

 to scroll to the desired event.

2. Press 

DATE/TIME/NEXT

 to select the event setting that 

 

you want to modify.

3. Press 

+

 or 

-

 to adjust the setting, then press 

DATE/TIME/ 

 NEXT

 to save and advance to the next setting. 

4.  Repeat step 3 as needed for this event.

5.  If you want to modify another event, press 

SET ON/OFF 

 EVENTS

 to scroll to the desired event.

LIMITED  ONE YEAR WARRANTY

If within the warranty period specified, this product fails due to a defect in material or workmanship, 

Intermatic Incorporated will repair or replace it, at its sole option, free of charge. This warranty is extended 

to the original purchaser only and is not transferable. This warranty does not apply to: (a) damage to 

units caused by accident, dropping or abuse in handling, acts of God or any negligent use; (b) units 

which have been subject to unauthorized repair, opened, taken apart or otherwise modified; (c) units not 

used in accordance with instructions; (d) damages exceeding the cost of the product; (e) sealed lamps 

and/or lamp bulbs, LED’s and batteries; (f) the finish on any portion of the product, such as surface and/

or weathering, as this is considered normal wear and tear; (g) transit damage, initial installation costs, 

removal costs, or reinstallation costs.
INTERMATIC INCORPORATED WILL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL 

DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR 

CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO 

YOU. THIS WARRANTY IS IN LIEU OF ALL OTHER EXPRESS OR IMPLIED WARRANTIES. ALL 

IMPLIED WARRANTIES, INCLUDING THE WARRANTY OF MERCHANTABILITY AND THE 

WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, ARE HEREBY MODIFIED TO EXIST 

ONLY AS CONTAINED IN THIS LIMITED WARRANTY, AND SHALL BE OF THE SAME DURATION AS 

THE WARRANTY PERIOD STATED ABOVE. SOME STATES DO NOT ALLOW LIMITATIONS ON THE 

DURATION OF AN IMPLIED WARRANTY, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
This warranty service is available by either (a) returning the product to the dealer from whom the unit was 

purchased, or (b) completing a warranty claim on line at www.intermatic.com. This warranty is made by: 

Intermatic Incorporated, Customer Service 7777 Winn Rd. Spring Grove, Illinois 60081-9698. For 

warranty service go to: http://www.intermatic.com or call 815-675-7000.

INTERMATIC INCORPORATED, 

SPRING GROVE, ILLINOIS 60081-9698

158--01635

                                                        Troubleshooting

Symptom

Possible Cause 

Solution

The timer is losing settings

Low battery not holding memory

Replace the battery. See 

Replacing the 

Battery.

Output does not switch or output switches 
at wrong time

Auto or RDM mode is not properly selected. Select the desired mode. See 

Daily 

Operation

.

There are extra or incorrect event settings. Press SET ON/OFF EVENTS to scroll 

through the events to find the event that 
needs to be changed or deleted.  
See 

Reviewing or

 

Modifying an Event

.

Astro Events have seasonally adjusted 
beyond fixed time.

Make sure the fixed timed events are not set 
anywhere in the range of earliest to latest 
sunrise and sunset. 

Reviews: