Troubleshooting Guide

Observed Problem

Switch timer does not switch ON/OFF but display looks normal. Switch timer wont enter AUTO or RANDom mode when you press MODE.

Possible Cause

Switch timer is not set in AUTO, RANDom, or MANual mode. The time of day or timer settings have not been set. Programmed schedule(s) are incorrect. Switch timer is in RANDom mode, which varies switching times up to 20 minutes (to give your home a lived-in look). The Astronomic and Specific switching times are in conflict. For example, youve set ON to DUSK and OFF at 8 pm, and due to seasonal changes, DUSK has advanced to 8:30 pm. NOTE: Your switch timer automatically skips any conflicting ON event as summer approaches to prevent unwanted operation of lights or other controlled devices. See What to Do if you want to identify and remove conflicting settings. Switch timer does not catch up automatically to the programmed load state. The status of the switch timer will remain as is until it comes to the next programmed ON/OFF time. The remote switch is wired incorrectly. There is an excessive length of wire (more than 100 feet), or there is buried wire to the switch. The remote switch is not functioning properly or worn out. The remote switch or switch timer is wired wrong. There is an excessive length of wire (greater than 100 feet) There is buried wire to the remote switch. The switch timer is not functioning properly. Battery is not seated in the tray. The tray is misaligned. The contact tabs of the tray are bent. Though the BATT message is not being displayed, the battery is getting weak. The light or controlled device itself may be switched OFF.

What to Do

Press MODE to select the operational mode you want to use. Make sure the time of day and at least one scheduled activity have been set. Press ON/OFF to review the settings and revise them as necessary. See instructions at the left. If you dont want to keep the switch timer in RANDom mode, press MODE to change to AUTO mode.
Installation and User Instructions

Ratings

MODEL ST01 Series
Self-Adjusting Wall Switch Timer
c. Connect the GREEN wire to the grounding screw in the box. If
a plastic box, connect to ground as supplied.
d. Make sure all twist connectors are tight.

If a 3-Way Switch Setup:

RED WIRE NOTE: The distance between BLUE WIRE switch timer and remote switch must not exceed 100 feet. WIRE FROM COMMON OF a. Locate the COMMON OLD SWITCH wire connected to first old BLACK WIRE switch. It might be attached to a different colored screw, or find markings on old switch. b. Connect BLACK wire from switch timer to COMMON wire, using a twist connector. c. Connect the other two wires from the old switch to the Blue and RED wires from the switch timer. d. Connect the GREEN wire to the grounding screw in the box. If a plastic box, connect to ground as supplied. e. Using diagram #1 below. Identify and remove wire C from the Common terminal of your existing remote switch.
DIAGRAM 1: TYPICAL EXISTING 2-SWITCH SETUP
COMMON TERMINAL LINE WIRE A WIRE C WIRE B NEUTRAL LOAD
Resistive (heater) 15 Amp, 120-277 VAC Tungsten (incandescent) 15 Amp @ 120 VAC, 6 Amp @ 208-277 VAC Ballast (fluorescent) 8 Amp @ 120 VAC, 4 Amp @ 208-277 VAC Motors 1 H.P. @ 120 VAC, 2 H.P. @ 240 VAC DC Loads 4 Amp @ 12 VDC, 2 Amp @ 28 VDC
1. Complete the steps for setting the Time and
Switch timer switches at incorrect times or skips some of the programmed times.
Date, then temporarily change the date to June 21st. 2. Review the DAWN and DUSK settings by pushing the ON/OFF button. 3. Make sure the specific ON or OFF time settings wont interfere with these DAWN and DUSK times. Make changes as necessary. 4. When finished, change the Date setting back to todays date.
After entering your schedules or the time, then returning to the AUTO mode, push the ON/OFF button to change the load state if necessary. Recheck the wiring, especially for the jumper, according to If a 3-way Switch Timer and If a Multiple Switch Timer Setup. Eliminate the condition: either replace the buried cable, do without the remote switch, or contact Intermatic Customer Service for more options. Replace the remote switch. If the problem persists with the switch timers red wire disconnected or with a remote switch temporarily connected right at the switch timer, replace the non-functioning switch timer. Otherwise, try the above suggestions.
The lights or controlled devices dont match the programmed ON/OFF status immediately after setting the time or programming a schedule. Load only operates when the remote (3-way) switch is in one position, or the switch timer ignores the remote switch.
WARNING Electrical shock hazard. Risk of injury or death. Remove electrical power at service panel before installing. Risk of fire or burns from used battery. Do not recharge, disassemble, heat above 100 C, crush, or incinerate the lithium battery. Keep battery out of reach of children. Replace only with Panasonic type CR2 or equivalent CR2 battery approved by Underwriters Laboratories (UL). Use of a different battery type may present a risk of fire or explosion upon disposal of battery. Risk of fire. Do not use timer to control devices that could have dangerous consequences due to inaccurate timing, such as sun lamps, sauna, heaters, crock pots, etc. NOTICE Follow local electrical codes during installation. Risk of timer damage due to leakage if weak battery is not replaced promptly. Dispose of used battery promptly per local regulations.

3-WAY MAIN SWITCH

3-WAY REMOTE SWITCH
f. Using diagram # 2 below, remove and reconnect wires B
1 Before Installing Switch Timer, Install and Check Battery Before installing the switch timer into the wall, make sure the supplied battery is installed and working. 1. Open the access door to reveal the battery tray, located below the ON/OFF keypad. 2. If there is a pull tab at the battery tray, remove the tab to connect the installed battery. Make sure battery tray is pushed fully into place. Proceed to Step 6. 3. If the battery was supplied loose, use a flat screwdriver to pry loose the battery tray. 4. Place the supplied CR2 battery into the tray, observing + and markings on tray. 5. Replace the battery tray into the switch timer. 6. The display will initialize itself then flash 12:00 AM in MANual mode. 7. Press the ON/OFF button. The switch timer should click. NOTE: If display doesnt flash 12:00 am, the battery may be dead. Replace the battery before installing the switch timer. 2 Install the Switch Timer
and C to the Common terminal of your remote switch, using the supplied piece of jumper wire, if necessary. Follow diagram # 3 below, if using a new single-pole remote switch.
LOAD BLACK TIMER RED NOT USED WIRE A BLUE WIRE B WIRE C JUMPER NEUTRAL
The switch timer ignores a 3-way remote switch even though it is wired correctly.
DIAGRAM 2: LINE 2-SWITCH SETUP, TIMER INSTALL RE-USING EXISTING REMOTE 3-WAY SWITCH

COMMON TERMINAL

The load turns off immediately after being turned on.
DIAGRAM 3: 2-SWITCH SETUP, TIMER INSTALL USING NEW SINGLE-POLE REMOTE SWITCH

BLACK TIMER

WIRE B

WIRE C JUMPER

NEUTRAL

WIRE A

SINGLE-POLE REMOTE SWITCH
The battery tray is difficult to replace. The switch timer operation is sluggish or not switching ON/OFF at all. Timer shows ON but the light or other controlled device is OFF.
Seat the battery in the tray, then reinstall. Replace the battery. To test the battery, press the
ON/OFF button. The timer should click.
Make sure the light or controlled device is switched ON and plugged in.
LIMITED ONE-YEAR WARRANTY
If within one (1) year from the date of purchase, 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 household 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, LEDs 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) mailing the product, along with proof of purchase, postage prepaid to the authorized service center listed below. This warranty is made by: Intermatic Incorporated/After Sales Service/7777 Winn Rd., Spring Grove, Illinois 60081-9698/815-675-7000 http://www.intermatic.com Please be sure to wrap the product securely to avoid shipping damage.

1. Turn off power at the service panel by REMOVING FUSE or
TURNING THE CIRCUIT BREAKER OFF.
2. Remove the existing wall switch. 3. Trim building wires to 7/16 as shown.
If a Single Switch Setup:

g. h. i. j.

a. Connect one of the two wires

BLACK WIRE

INTERMATIC INCORPORATED SPRING GROVE, ILLINOIS 60081-9698

158ST13133

from the wall to the black wire from the switch timer, using the twist connectors provided. BLUE WIRE b. Connect the other wire from the wall to the blue wire from RED WIRE the switch timer, using the (capped, not connected) twist connectors provided. NOTE: The RED wire is not used in single-switch installations. Cap with a twist connector.
NOTE: For new construction or to replace a dimmer switch, a lighted switch, or a 3-way switch without screw terminals, a single-pole switch can be used at the remote location, as shown. NOTE: If the buildings wiring colors dont allow you to tell wire A from B, just pick one of the two wires and connect as if it is wire B. After the installation is complete, if the controlled light or device will not turn on properly, simply reverse wires A and B. See Steps J and K for how to check. Tuck wires into the timer wall box leaving room for the timer. Using screws provided, mount the switch timer into the wall box, then install the wall plate. Install the remote 3-way switch in its box and install wall plate. Turn the power back on at the service panel. Make sure the switch timer displays MAN mode. Do the following test with the remote switch in each of its 2 positions: Press the ON/OFF button on the switch timer several times. Each time that you push the ON/OFF button, the switch timer should click and the controlled light or device (the load) should turn on or off. If so, proceed to Step K. - If the timer clicks but the load does not operate, re-check your wiring and make sure the load is functional.
If the timer clicks but the load only operates when the remote switch is in one of its 2 positions, you need to turn off the power at the service panel, then reverse wires A and B. You can reverse wires A and B at the remote switch wall box, or you can reverse wires A and B where they connect to the red and blue wires of the switch timer. Then turn power back on at the service panel and repeat Step J. k. Verify that the controlled load turns on or off each time that the remote switch is operated. Your timer is now ready to be set. If a Multiple Switch Timer Setup: Multi-switch applications using the ST01 Series switch timer are wired differently than when using conventional toggle switches. Read the following installation instructions carefully. Multiple switch timers may be mounted in an unlimited number of adjacent junction box slots. No derating is required for multiple switch timers. For a three-switch setup:

ADDITIONAL WIRE BLACK BLUE TIMER RED TWO 3-WAY SWITCHES NEUTRAL LOAD
5 Set the Date and Time In order for the Astronomic Feature and automatic Daylight Saving Time settings to function properly, the CALENDAR settings must be entered correctly. WHAT IT MEANS: The icon of the LIGHT BULB indicates whether the switch timer is ON or OFF. The WHITE area of the example screens is what will be flashing on your switch timer. 1. Press MODE until the screen displays SET UP. The first time, the hours/minutes display will be flashing (Fig. 4). 2. Press ON/OFF to display HOUR (Fig.5), then press + until the correct hour and AM/PM are shown. NOTE: If you go too far, press the - button to back up, or press + until you loop back. 3. Press ON/OFF to display MIN ( Fig. 6), then press + until the correct minute is shown. 4. Repeat this routine for YEAR, MONTH, DATE. 5. Verify that the day of the week is correct (Fig.7). If wrong, press + or to loop back, then reset the calendar information. 6. Press ON/OFF to display DST (Fig. 8), and set whether you want to adjust automatically for Daylight Saving Time (DST). - If you use DST, press + for AUTO. - If you do not use DST, press + for MANual. 7. Press ON/OFF to set your North ZONE (Fig. 9). This feature North tracks changes in sunrise Center Center and sunset times. Press + to select your local zone: NoRTH, CENTer, or SOUth South South (Fig.10). Fig. 10Fig. 8 8. You can set DAWN or DUSK to your exact time in your area according to your newspaper or online. Use the following procedures to do so, or press ON/OFF 3 times to skip. for DAWN (Fig11), then press + to set the correct HOUR. b. Press ON/OFF to display MIN (Fig.12), then press + until the correct minute is shown. c. Repeat Steps a and b to set exact local time for DUSK. 9. Press ON/OFF again and youll loop back to SET UP. CHECK YOUR SETTINGS: Press ON/OFF repeatedly to loop back around to review your date and time settings. If anything is wrong, make corrections using the above steps. 6 Set Initial Pair of ON and OFF Times You have many options with up to 40 timer settings: Set to a specific ON/OFF time. Set to DAWN and DUSK, which automatically adjust as the seasons change. This is the ASTRONOMIC feature. Set to activate ALL days, M-F, WeeKenD, or individual days. Programs are created in two procedures: setting an ON time followed by setting an OFF time. You must set each time separately. The instructions below will guide you as follows: First, for setting an ON time, which can be DAWN or DUSK, or a specific time such as 6:00 pm, Then for setting an OFF time which can also be DAWN or Dusk, or a specific time.
then press + until you see the program number you want to set (Fig.14). 3. Press ON/OFF, then press + if necessary, to display ON for setting the ON time (Fig. 15). Continue to press + for OFF (if setting an OFF time) or SKIP (if deleting a setting). 4. Press ON/OFF, then press + to display whether you want ON to be set for DUSK, DAWN, or a specific time which would be shown as 12:00 (until you change it). If ON is to be at Dawn or Dusk: NOTE: Some people like to set DUSK as an ON time and match it with a specific time such as 11:00 pm for OFF. a. Press + to display DUSK (Fig. 16). Continue to press + for DAWN (if setting DAWN as the on time). b. Press ON/OFF to display the days you want the setting to be active, then press + to select either ALL days, M-F, WeeKenD, or an individual day. Fig. 17 shows ALL as an example. c. Press ON/OFF again. The display will briefly show SAVE. You have successfully set the ON time as DUSK, and must now repeat this procedure to set the OFF time to go with it. The display will loop back to Step 2 above, ready for you to set another program. Press + to display a flashing 02 (Fig. 18). To set PROGRAM 2, follow this procedure again, beginning at Step 2 above. When youre finished, press MODE to exit from programming and automatically save your new settings. If ON is to be at a Specific Time such as 8:15 pm:

2. Press ON/OFF to display the program number,
7 Selecting AUTO, RANDom, or MANual Operation Once set up, you have three choices for using the switch timer. To make a selection, open the front cover and press the MODE button until you see your choice of the following options: AUTO uses the timer settings you have programmed. RANDom gives your home a lived-in look by varying your settings by a random amount of 20 minutes or so. MANual makes the switch into a standard ON/OFF switch without timer settings. Press on the door of the switch timer for ON, press again for OFF. About the Battery
For four or more switch setups: Use the preceding 3-switch installation diagram and wire 4-way switches between the two 3-way switches. NOTE: The remote switch(es) may not function reliably when the accumulated wire length to the remote switch(es) exceeds 100 feet or if the wiring to the remote switch(es) is buried underground. Contact Intermatic Customer Service for details. NOTE: Used remote switches from a previous conventional installation may not function reliably with an electronic timer. Try a brand new remote switch if function is intermittent. You are now ready to set the DATE and TIME. 3 Intro to Programming: Read Before You Begin
The single lithium CR2 battery operates the ON/OFF function (click-click) and maintains time of day and date. The screen flashes BATT when the battery is getting low. The battery may be changed without removing AC power. You have about one minute to swap batteries before the switch timer forgets the date and time settings. Afterwards, if the display is wrong or flashes 12:00 AM, reset the time and date. All other settings (your ON/OFF programming) remain in memory indefinitely without battery or AC power. To test the battery, press the ON/OFF button. The timer should click. Replace the battery per Section 1 Instructions as soon as possible after the low BATT message appears. Do not leave exhausted battery in Switch Timer. (Risk of leakage.) Replace only with Panasonic Type CR2 lithium battery or equivalent CR2 battery approved by Underwriters Laboratories (UL). Dispose of the used battery promptly according to local regulations. Keep battery away from children. Do not disassemble and do not dispose of battery in fire.
As you use the menus to program, it will be helpful to have an overview of how they are organized. Press the MODE button to rotate through the switch timers modes: SET UP, PROGRAM, AUTO, RANDOM, and MANUAL. All menus loop, so they repeat when you get to the end. AUTO and RANDOM modes are skipped until there is at least one ON/OFF setting. Once you reach a Mode you want to work with, press the ON/ OFF button to rotate through the loop of settings available for that Mode, returning to the beginning. For example, in SET UP mode, you will see HOUR, MINute, AM/PM, Year, MONth, etc. Use the + or buttons to change a setting when it is FLASHING (e.g., the correct hour). Holding the button makes the numbers scroll faster. Pressing ON/OFF again advances to the next setting and automatically saves whether you changed the setting or not. Saving is automatic, theres no extra step. If youre interrupted during programming, your work to that point is automatically saved after 5 minutes. Press MODE when youre finished to navigate to the mode you want to operate the switch timer: Auto, Manual, or Random.

a. Press ON/OFF to set your exact local time
4 Clear Any Existing Programming Its unlikely that the new switch timer has any existing programming but to make sure, use this procedure before setting the time. 1. Open the front cover. 2. Hold down ON/OFF. 3. Using a pen or paper clip, press and release RESET, which is the small round button to the lower right of the + button. 4. When the screen displays INIT, release ON/OFF. The screen will initialize, then flash 12:00 am in MANual mode. All previous settings are now deleted.
press + until the correct hour is shown. NOTE: If you go too far, press the to back up, or press + until you loop back around. c. Press ON/OFF to display the minutes (Fig. 21), then press + until the correct minute is shown. d. Press ON/OFF to display the days you want the setting to be active, then press + to select either a specific day of the week, ALL days, MF (work week only), or WKD (weekend only). Fig.22 shows ALL as an example. e. Press ON/OFF again The display will briefly show SAVE. You have successfully set the ON time to 8:15 pm, and must now repeat this procedure to set the OFF time to go with it. The display will loop back to Step 2 above, ready for you to set another program. Press + to display a flashing 02 (Fig. 23). To set PROGRAM 2, follow the procedure beginning at Step 2 on the other side of this sheet. Repeat these steps to create up to 40 unique ON/OFF settings. When youre finished, press MODE to exit from programming and automatically save your new settings.
a. Press + to display 12:00 (Fig. 19). b. Press ON/OFF to display the hour (Fig. 20), then

Changing Program Times

Deleting an ON or OFF Setting
Use these steps to delete an existing ON or OFF setting that you no longer want (for example, special settings from a vacation.)
1. Press MODE until the screen displays ProGraM
below the time of day (Fig.24). then press the + button until you see the program number you want to delete (Fig.25). 3. Press ON/OFF, then the + button until SKIP is displayed (Fig. 26). The switch timer will now suppress this setting. 4. Press ON/OFF again to cycle through the program until the display briefly shows SAVE. 5. Press MODE to exit from programming and automatically save your new settings. NOTE: Repeat this step and select ON or OFF to reactivate the setting.
Revising an ON or OFF Setting
Use these steps to revise an existing ON or OFF setting.
below the time of day (Fig.27).
below the time of day (Fig.13).
then press the + button until you see the program number you want to revise (Fig.28). 3. Press the ON/OFF button as many times as necessary to display the setting you want to revise, for example, the MINUTE (Fig. 29). 4. Now press the + button again to display the new minute you want to set (Fig. 30). 5. Press MODE to exit from programming and automatically save your new settings.