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Changing the color of the timer

This device includes a Light Almond Faceplate. To 
switch faceplates proceed as follows:
1.  Gently remove the White Faceplate using a flat 

head screwdriver.  Starting at the top left corner 
gently pry  the faceplate loose. Work around the 
faceplate until it pops off.

2.  Find the Light Almond Faceplate in the package. Place the new faceplate into 

position and carefully push until it snaps into position. 

Multi-Switch Installations

When combining controls in a wall box, remove all inner side sections prior to wiring. 
Use pliers to bend side section up and down until it breaks off. Repeat for each side 
section to be removed.

If you are unsure or unclear about this installation or if the wires in your box do 

not match the manual (not all switch boxes have neutral wires), contact a qualified 

licensed electrician.

Installation Instruction (Single Pole)

1.  Turn OFF the main power at the circuit breaker or fuse box.
2.  Remove the existing switch.
3.  Connect the wires of the timer to the wall box as shown in 

Figure 1

 and 

Figure 2

 

using the wire nuts provided. 
a) Connect the hot/live wire of line to the black wire from Timer. 
b) Connect the hot/live wire of load to the blue wire from Timer. 
c) Connect the ground wire to the green wire from Timer. 
d) Connect the neutral wire to the white wire from the timer. Often the neutral 
(white) wire can be found in the back of the wire box connected with a wire nut. 
There may be several neutral wires bound together. Add the neutral to all neutral 
wires bound together making sure wire nut is tight. 
e) For single pole installation attach wire nut to red (traveler) wire from the back 
of the timer. This wire is not needed in the single pole installation. 

Note: Be sure that all wire nuts are secure.

4.  Tuck the wires into the wall box leaving room for the timer. Using the screws 

provided, mount the timer to the wall box being careful not to crush any wires.

5.  Turn main power ON at the circuit breaker.

Typical 3-Way Wiring:  In a typical 3-way application there are two 3-way switches.  
The switch on the “HOT” side has the common terminal tied to 120VAC.  The switch 
on the “LOAD” side has the common tied to the lamp/load the switches turn OFF 
and ON. 

Common = Screw terminals found on the back single pole or 3-way toggle switch.

Existing 3-Way Installation Load Side

(The maximum distance between timer and 3-way switch is 100ft)

If timer is installed on the line side and all lamps burn out the timer will make a 

ticking sound. (See Troubleshooting)

Switch on Line Side

1.  Remove power from the circuit by turning off the circuit breaker 

or removing fuse.

2.  Remove the 3way switch from the hot/line side. Remove and label the common 

wire and remove one of the other wires.

3.  Using the supplied wire nuts connect the wire removed from the common, the 

supplied jumper, and the other removed wire (1) together.

4.  Connect the jumper back to the common connection of the switch.
5.  If the two wires wire (1) and wire (5) on the switch are colored or marked so you 

can tell them apart record their markings for use later.

6.  Tuck the wires into box leaving room for switch.
7.  Install switch into the box.

Timer on Load Side

1.  Remove the load side 3-way switch and remove the 3 wires, labeling 

the common wire.

2.  Connect the removed common wire to the timer blue wire.
3.  Connect wire (1) to the timer black (line) wire.
4.  Connect wire (5) to the timer red (traveler) wire.
5.  Connect the white wire (1) of the timer to the white wire in the switch box 

(neutral).  The neutral wires may be bundled in the back of the switch box with a 
wire nut.  There may be several neutral wires bound together.  Add the neutral 
to all neutral wires bound together making sure the wire nut is tight.

6.  Connect the green wire (3) of the timer to ground in the switch box.
7.  Tuck the wires into the switch box leaving room for the timer.
8.  Use the supplied screws to install timer being careful not to crush 

or pinch the wires.

9.  Restore power at the circuit breaker or fuse box.
10.  If the timer display does not turn on, you may need to swap wire (1) and wire (5).  

This can be done at the timer or toggle switch, after removing power from the 
circuit at the fuse box or circuit breaker.

11.  Verify that the load turns ON and OFF when you manually turn the timer ON 

and OFF. Perform this test with the remote switch in both positions.   You should 
hear the timer relay click ON/OFF. If you hear the relay click but the load does 
not turn ON/OFF properly, check your wiring.

15312

12-17-2010 

www.jascoproducts.com

Typical Wiring Schematic for Single Pole Installation

Black

Black

Load

White

White

White

Blue

 Line

= Wiring Nut

Ground

Green

Timer

Figure 1

SunSmart

TM 

Digital Timer

Installation 

Instructions

Figure 2

RED

GREEN

BLUE

WHITE

BLACK

Load Side

Hot Side

Line

Neutral

H

H

H

H

C

C

Typical Wiring Schematic for 3-Way Installation

2

1

5

3

2

5

1

3

4

RED

GREEN

BLUE

GROUND

WHITE

BLACK

C

Typical Wiring Digram for 3-way installation
with timer on load side

Load

Line

1 = Line

2 = Neutral

3 = Ground

4 = Load

5 = Traveler

C = Common

Troubleshooting

Timer display is blank

• Circuit breaker or fuse has tripped.
• Neutral is not wired correctly.

Ticking can occur in 3-way application when timer is 

installed on the line side and all lamps/bulbs on this 

line are burnt out (or removed from the fixture)

• Turn other switch (load side) to off position to stop timer 

from making ticking sound.

• Install a new bulb
• To permanently correct ticking issue re-install timer on 

the load side. (See manual)

http://waterheatertimer.org/How-to-wire-GE-15312-timer.html

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