Question about Intermatic Inc. EJ500C Digital Wall Switch Timer - Self-Adjusting Feature

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Similar issue as above. I have a two-switch wall box. I want to replace one switch with a timer. The swtiches control separate lights and are part of a circuit with other lights, but they are not 3 way switches. There is 3-wire and 2-wire cable ( grounds) entering wall for EACH switch. Red from one of the 3-wire cables is connected to top of switch i want to replace. Black wire on bottom of that same switch is connected to a pigtail with 3 blacks and 1 white. One of those blacks in the pigtail goes to the other switch. Not sure which is the power? Won't the red wire have a voltage reading as well?

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The black wires that are pigtailed are your hot and the red that is seperate is the switch leg. It will not be hot until you have it connected to a switch or the timer

Posted on Sep 29, 2010


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1 Answer

I need a replacement photoelectric switch for my outdoor Renaissance lamp model HB9902-98

The unit has motion-sensor/ photo eye capability built in.
There are no replacement parts for this type of device. Or long-term warranty.
The solution that comes to mind immediately is to rewire unit to by-pass the sensor, then install astro dawn-dusk wall timer in place of light switch.
Or install round box extension on the wall box, and wire up separate photo-eye mounted in the box extension.

If you need further help, I’m available over the phone at

Oct 13, 2012 | Hardware & Accessories

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Have a similar question to the others asked about the GE Smart Digital Timer 7 day timer model 15086. I originally got the wires connected but the exterior lights remained in on position. The manual...

Wiring instructions and on-line manual appear on following link.

I have tested this timer, but I'm not there to test it out for you.
Let me offer a troubleshoot list how I would start.
1) Switch located behind timer door that says OFF-TIMER. Make sure it is set to Timer.
2) 4 square buttons located behind timer door that sit in each corner. These are override buttons, and should turn lights on-off. Push each one separately.
3) Check wiring against instructions shown on link above. This timer will not operate unless wired correctly.
4) Ground wire broken off? Each cable that enters a box can be pulled a bit further so maybe you can grab some of the ground.
The ground is not critical for timer operation -UNLESS- you are using it to power electronic clock inside timer.
Normally white neutral wire is used for clock electronics, as described in wiring instructions.
5) Conflicts in programming. If 7-day programming has conflicting days or hours, timer will not operate as expected.
Check programming.
6) Reset timer and start over.
7) I test timers, and some arrive defective. GE makes a good timer, manufacturing timers for many decades: 15086 is sold at Home Depot. Buy another one and take back defective one.

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Mar 10, 2011 | GE Electrical Supplies

2 Answers

I have a wall-switch Intermatic Timer Model 885L that has become too stiff to turn itself off automatically. Can these be lubricated by WD-40 safely???? Or what is best fixit???

I am unable to identify Intermatic 885L

Add a comment with clear description of timer so I can identify and help.
With mechanical dial timers, once the motor begins to slow down, then motor overheats and burns out. This is true for all electric motors, and eventually all electric motors stop working.
Power pack yard-light transformers, in-wall timers and plug-in type timers are not repairable, even with WD40, because the motor has already overheated.
These timers are replaced with new timer.
However if you have a power pack, since this timers is expensive, you can buy cheap plug-in timer, set power pack to override, and then plug power pack into cheap timer.

With direct wire mechanical box-type timers that are used for parking lot lights and pool pumps, for example T100 series 120V and 240V timers, the clock motor is replaceable. These small motors cost $16 to 60 depending on clock.

Again, add a comment with clear description of timer so timer can be identified for certain.
I can also post the manual if available, and post links to sellers of similar/same timer if replacement if necessary.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Jan 31, 2011 | Intermatic Hardware & Accessories

2 Answers

I'm trying to install this for our outdoor Christmas lights. The wall switch box has 1 black, 1 white, and 1 bare (ground). Where do I connect the red "timer" wire from the timer unit? When I...

Single pole application, red wire is capped off.

That being said, you still have to connect Blue and Black wires correctly.
Switch has two wires, if you do not know which wire is which, follow instructions below.
Connect Blue and Black to either wire.
Turn on power.
Push ON-OFF button.
If lights work, then timer is wired correctly.
If lights don't work, then reverse Blue and Black.

Be sure outdoor bulb is working.
I have a long story about that, and tested every wire and breaker ... and bulb was burned out.

Nov 28, 2010 | Intermatic Inc. ST01C Digital In-Wall...

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My lighting timer seemed to have burnt out. We thought that the switch was bad, because light was out - replacement one does not work either.

If I understand correctly you installed a new timer and it does not work.
You posted under EJ351 timer.

Problem sounds like it's electrical instead of timer.

1) Check electricity at wall box where timer is located. Remove both wires from timer. Separate wires for testing. Turn on power. Test each wire to bare ground wire. If box has power, then one wire will light up tester. This is Hot wire. Next test Hot wire to white wires inside box to make sure circuit can be completed to the neutral. If box doesn't have Not or Neutral then check other local boxes on same breaker to find where loose wire is.

2) Check that Load (light, fan, motor) is not burned out ... you can do this by putting regular light switch in place of timer. Box must test positive for Hot and Neutral wire.

3) Check that breaker is delivering 120V. Test from screw on breaker to any bare copper wire inside breaker box. Tighten screw on breaker. There is a white wire associated with black wire on breaker ... track this wire over to neutral busbar and make sure it is tight.

4) If electricity checks out, then timer is suspect. You may have gotten bad timer.

Nov 26, 2010 | Intermatic Programmable 24 Wall Switch...

1 Answer

I have a black red yellow and green wire on a combination fan controller and light dimmer,which wires do i hook up to my switch line and feed line in my wall box....thks in advance

You have new wiring device.
Device controls fan and light.

To control fan and light separately from wall box, requires a separate wire to each Load.
So box requires one wire going to fan, and a separate wire going to light.
If previous switch has just two wires that controlled both fan and light, and then fan is controlled with pull-chain, it sounds like new device requires another wire be added to circuit.
Add a comment and say how many cables enter wall box, and say color of each wire in each cable.

Without knowing exact wires in your box, or exact device ... I can suggest answer based on typical wiring.
Compare this answer with instructions that came with device.

How to wire fan-light device:
-Device-green wire always connects to bare copper wire
-Device-black always connects to black Hot wire from breaker
-Device-red usually connects to wire going to light
-Device-yellow usually connects to wire going to fan

Nov 18, 2010 | Cooper Lighting Lighted Switch

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Am replacing an old wall timer with a GE Smart Digital Timer. The old timer had two black wires connected to two black wires from the wall. The new timer however has red, black, white and green wires. I...

I've tested these timers.
Here's what to do:
1) Connect green to bare copper
2) Switch has 2 wires. For now, connect these two wires to timer-black and timer-red. Choose either one.
3) In back of wall box are white neutral wires twisted together and covered with wire nut. Timer-white wire connects to these white neutral wires. This action gives power to time clock.
4) If wall box does not have white neutrals described above, then connect timer-white to bare ground wire. Bare ground connects to neutral busbar in breaker box.
5) Turn on power and click manual override button or switch. If lights turn on, timer is wired correctly. If lights do not turn on, then reverse timer-red and timer-black wires.

Nov 16, 2010 | GE 60minute Automatic ShutOff Timer Switch...

1 Answer

I need help hooking up my bathroom fan and light i have three wires going to the bathroom fan and light white black and ground i want a swith to turn off the bathroom light one to run the light to the fan...

Right now a single switch turns on both light and fan.
You want to put in a double switch to control light and fan separately.

But the problem is there is not a separate wire to each the light and fan.
You need a separate wire to each, but the circuit wasn't wired that way.
Usually when the circuit is wired for separate control, there is a red wire that also goes to ceiling box.

Unless you run another wire to the ceiling box, it won't be possible to control light and fan separately.

Electrician can do this pretty easily if there is attic space above bathroom.

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I have a hunter ceiling fan that was wired with 2 conductor so the fan is always on when the light is on. I should be able to replace the 2 conductor with 3 conductor to seperate the controls. Yes?

That's correct, you need to add a switch on your wall, so you'll have one switch for the light and one for the fan, and instead of having a black and white wire going from the wall switch box to the fan box you will run 3 wire cable with a black, red and white wire. Black and red will control your fan and light while white will be your neutral. Just remember to separate the wires up in the fan box so your light and fan are controlled separately.

May 27, 2010 | Sewing Machines

1 Answer

Control fan/light separately, with only two wires

They are available at Home Depot and Lowes. Hunter makes a wall mounter dimmer that will control the lights and fan speed separately. There is a receiving unit that mounts above the fan to the house wires on one side and the others connect to the fan.

The two hots you mentioned should be a black one and a blue one. The blue is for the lights; the black the fan. Ground everything you can to boxes, etc, if the house is only a two wire system without a ground.

I believe that remote wall switch and receiver runs close to $40.


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