20 Most Recent Intermatic Inc. EJ500C Digital Wall Switch Timer - Self-Adjusting Feature Questions & Answers


I have this timer and while it has power, it does now allow me the program it anymore. The screen shows all 8’s
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Intermatic Inc.... | Answered on Jun 11, 2019


Les, First thing to do is to change the battery and see if the timer will allow you to reprogram it. Sometimes these timers will fail, as some models have a known history of failing fairly often.

NoOp, means non operating within the Intermatic line of electronic timers, so in order to see if the unit has failed or is just malfunctioning, due to a weak battery, remove the existing battery and install a fresh, new one.

You can remove the existing battery by flipping down the front switch panel and removing the battery tray with either your fingernail or a small flat bladed screwdriver. As your timer is showing the NoOp, you don't have to worry about losing your programmed on/off cycles, so you can take your time. Normally, if you're changing the battery, you get about 30 seconds to do this with some models of Intermatic timers, or you'll lose the settings. The newer models store the program regardless of how long it takes to change the battery.

Once you've replaced the battery, press the Reset button on the timer and allow it to refresh. If the NoOp is gone, just reprogram the timer with your on/off cycles and days and you're back in action. If the timer doesn't clear, you'll likely need to replace it, as it could be damaged and will not be able to be programmed again.

Usually, changing the battery and resetting the timer works about 60% of the time for me, as I've installed thousands of the various Intermatic timers in customer's homes over the years.

Hope you find this Very Helpful and best regards!

Intermatic Inc.... | Answered on Aug 29, 2017


None of the answers are helpful. First, this is a question about installation and not operation so clpalmer976 is worthless. And no, if you read the question it was not a 3 way switch. If you hook it uplike ridley says, the light is not powered. Read the question. The red wire powers the device. The problem is "If I connect the red to the white, the switch will work in a clicking, pulsating fashion." The red has to be connected. The last suggestion, there is on info on unitech anything on the site. They are all somethings that can't read and make this site especially worthless.

Intermatic Inc.... | Answered on Jun 10, 2017


Manual available at:
http://waterheatertimer.org/Intermatic-ej500c-manual.pdf
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#ej500

Ej500 is for incandescent bulbs only and for loads no farther than 100' feet away.
Replaceable batteries last 3 years, timer comes with 1 year limited warranty.
Use ST01C or Ei600 for CFL and LED and motor loads located within 100'

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Mar 04, 2015


You are install GE 15313 timer
Open following link to identify timer
http://waterheatertimer.org/GE-timers-and-manuals.html#15312

15313 timer does not require Neutral wire.
The timer you are replacing has neutral wire (White wire)
So replace timer wires 1:1 except do not connect timer to white neutrals.

Keep in mind the 15313 is for incandescent lights only and is not for CFL or LED lights.
If you want timer for CFL, then install one of the other timers shown on page.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Mar 04, 2015


The EJ500 is rated for incandescent (resistive) bulbs only, and not LED CFL etc.
Max distance between light and timer is 100 feet and wire cannot be underground.
Replace with ST01 timer, or Ei600 timer... these timers are rated for any load (resistive or inductive), and are programmable or dawn-dusk... 7 day... single-pole or 3-way
http://waterheatertimer.org/Programmable.html#st01

Gene

Water Heater Timers Save Money

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Nov 17, 2014


See if manual appears among manuals/ or arlec manuals on following links:
http://waterheatertimer.org/Woods-timers-and-manuals.html#arlec

http://waterheatertimer.org/Woods-timers-and-manuals.html#13568

Attach photo of timer

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Sep 28, 2014


The timer could be defective internally.

Intermatic Inc.... | Answered on Dec 06, 2013


Don't forget to reset timer after replacing battery:
Copy following link to identify timer and download manual:
http://waterheatertimer.org/Intermatic-timers-and-manuals.html

If timer does not function after reset, then buy new timer
EJ500 is rated incandescent bulbs only

Gene
h

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Oct 06, 2013


1) Copy following links to help identify timer and download manual:
http://waterheatertimer.org/Intermatic-timers-and-manuals.html
http://waterheatertimer.org/GE-timers-and-manuals.html
http://waterheatertimer.org/Woods-timers-and-manuals.html

2) Add a comment and describe timer in detail, including what the timer does, and what buttons appear on timer face, and location of each button.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Feb 16, 2013


1) Copy following link to identify timer, and download on-line manual
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#ej600

2) Wiring for the EJ600 timer is identical to wiring for GE15312 single-pole or 3-way timer with neutral wire required
http://waterheatertimer.org/How-to-wire-GE-15312-timer.html

3) This unit does not require battery.
Add a comment Feb 2013, and say what your wiring looks like, and what you have done so far for programming.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Intermatic Inc.... | Answered on Feb 08, 2013


The wires on your new switch are intended for black = power .. white = neutral . and red = lights .. with two black wires on the old switch I am assuming that there is a bundle of white wires in that wall box, the white timer needs to join that bundle ... then you need to determine which black wire is the power from the electrical panel ( voltage tester) and connect to the black timer wire .. the red timer wire connects to the other black wire in the wall..

Please Vote !!

Intermatic Inc.... | Answered on May 07, 2012

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