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How do you open the timer to replace the battery?

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Replace backup battery


Posted under orbit timers... product not identified
Many timers today have a backup 'battery' that is actually a capacitor located on the circuit board.
Generally the battery is not replaceable and is specific to the circuit board design and model of product.
Product manuals and manufacturers call it a battery because it works like a battery to preserve settings during brief power outage.

If the timer has a replaceable battery, then there will be a small door located somewhere on timer that can usually be popped open using thumb or small tool.

There are some timers that have a replaceable battery... this applies to wall timers, box timers, timer modules, and sprinkler timers etc... and this is very useful for some applications because the timer can operate loads independent of using voltage.
Disadvantage of replaceable battery is failure due to cold weather or bad battery connection. Advantage of capacitor-type battery is low cost and high reliability.
http://waterheatertimer.org/Override-thermostat-with-programmable-timer.html
http://waterheatertimer.org/Gardena-timers-and-manuals.html

Gene

Water Heater Timers Save Money

Mar 12, 2015 | Orbit Hardware & Accessories

1 Answer

I misplaced my instructions for my timer and need to re-set it after a power outage. Can you please send me the instructions? Thanks.


Question posted under Intermatic ST01C, but Timer is not 100% identified since ST01C is battery powered, and should not lose programming or stop working with ordinary power outage.
Most digital timers have a battery or capacitor back-up for power outage.
Add a comment with description of timer buttons, or open link below to see most brands of in-wall timer.

Open following link for to identify Intermatic ST01C and Ei600 and download instructions:
http://waterheatertimer.org/ST01C-program.html#battery
ST01C timer has a battery backup. Power outage will NOT cause battery-powered display to fail, but power outage and power surge can cause any electronic timer to fail.
So either the battery went dead, or power surge ruined timer, or you don't have ST01C timer.

If ST01c display is not showing, then replace battery and then reprogram current time -or- manually re-set timer and then reprogram timer.

Sep 03, 2011 | Intermatic Inc. ST01C Digital In-Wall...

1 Answer

I have an Aube 3 way wall switch timer that has failed. I have another timer (utilitech in-wall timer) that has a black, red, white and ground wire. Not sure how to wire it.


Utilitec can only replace single-pole switch.
Open following link for typical Utilitec single-pole wiring:
http://waterheatertimer.org/Program-wire-Utilitec-LW60419.html

Aube timer has internal battery that runs clock mechanism and does not require neutral wire.
The Aube battery lets timer replace single-pole or 3-way switch.
Utilitec timer does not have battery, so clock mechanism requires neutral wire, just like plugging in electric clock.
Without battery, timers like Utilitec can only replace single-pole switch.

Open following link to see list of timers that can be used for 3-way:
http://waterheatertimer.org/Aube-timers.html#3-way

When installing 3-way timer, the timer replaces one 3-way switch but other 3-way switch remains.
The remaining 3-way is rewired to accommodate the specific timer being used.
SOME brands of timer cannot replace either 3-way switch, but instead can only replace the 3-way that receives hot wire from breaker: Read manual before selecting timer.

Note: Battery-operated timers can be used for 3-way application, but cannot operate in cold environment.

Aug 13, 2011 | Aube Technologies Aube 7-Day Programmable...

1 Answer

Where do I buy replacement batteries, the timer indicates low battery and lights stay on all the time


EJ500 uses two LR44/SR44 batteries
Open links below to assist.
http://waterheatertimer.org/Flipdown.html
http://waterheatertimer.org/images/ST01C-battery-tray-400.jpg

Web search for sellers of these batteries.
Note witch direction batteries are sitting so you can replace them correctly.

If timer will not operate after new battery install, then reset timer and afterward, re-program timer.
EJ500 has 1 year limited warranty.

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.

Feb 08, 2011 | Intermatic Inc. EJ500C Digital Wall Switch...

1 Answer

How do you change the battery on an Intermatic EJ500C timer?


Following link has photo of the battery carriage
http://waterheatertimer.org/ST01C-program.html#EJ500

Open door on EJ500.
Below button is battery compartment.
Use small tool to open compartment.

Befor pulling out batteries, notice direction that batteries sit.
Look at markings on battery.
Replace with same battery.

Jan 12, 2011 | Intermatic Inc. EJ500C Digital Wall Switch...

1 Answer

I have a new Nordik digital indoor timer TD133B. It has never displayed information on it's screen. The instruction manual indicates plugging it in for an hour to charge the battery. I did this but still...


Most plug-in timers have rechargeable battery that is not replaceable.
Instructions say: Plug in timer for hour and then unplug it to set programs.
Intermatic makes a couple plug-in outdoor timers with replaceable batteries that load from back of timer, but otherwise batteries are rechargeable.
If battery will not charge, then display doesn't show, and that signals the timer is no good.
Take timer back if you can, and exchange for another.

I was looking at timers in Walmart and Target yesterday (since my specialty, and interest is timers).
New plug-in timers are inexpensive.
Lowes and Home Depot also carry inexpensive plug-in timers.

Be sure to save timer instructions because generally, store-bought timer brands don't show manuals on-line. Except GE brand timers from Home Depot.
Add a comment if you need more help.
http://waterheatertimer.org/Woods-timers-and-manuals.html

Nov 25, 2010 | Hardware & Accessories

1 Answer

I need the steps for setting the timer function


Link shows the Sylvania indoor timers
http://www.hardwareinnovations.com/prodshelf.asp?dept_id=1007

Click on photo of your timer
Next page opens
Click on the word 'manual' to open a copy of your manual

If you have the AS140, the link below goes to that manual
http://www.hardwareinnovations.com/pdf/SA_130_IB58572_02.pdf

The timer comes with a replaceable battery.
The battery lets you program the timer before plugging timer into wall.

If you need help with instructions in the manual, answer back and I will help.

Oct 24, 2010 | Sylvania 15 Amp Zip Set Digital Lamp and...

1 Answer

I have a GE 15086 timer and i believe the battery is bad can you tell me how to change it?


The battery is not easily replaceable. It's a 1.2 volt, 80ma Nickel-metal hydride battery, that is soldered to the circuit board. I opened the back of the switch to find the battery. The one in this switch was in bad shape. It looks like the battery broke apart, but wasn't leaking. The switch is less then a year old. Bad design.

I just opened this up today and am going to look for a replacement battery. But soldering will obviously be involved to get the a new battery back in place.

May 23, 2010 | Intermatic Inc. EJ500C Digital Wall Switch...

2 Answers

How do I replace batteries in the ST01 series timer


The Intermatic ST01 uses a CR2 3 Volt-DC battery to operate the "click-clack" ON - OFF function of the timer.

In order to change the battery, simply pull down the flap just below small display screen. This is the manual switch that you can push to turn the timer on and off.

Just use your fingernail at the top of the door flap and pull down, it will open up and reveal another small tab. This is the battery holder/tray.

To open this, either use your fingernail or a small flat bladed screwdriver at the top to slide out the battery holder tray.

If you remjove and replace the battery within 30 seconds or less, you won't have to reprogram the time/day/date/year. Otherwise taking longer you'll have to reset the time and date feature of the timer.

Don't worry, the timer remembers your program ON - OFF cycles regardless of whether the battery is in the timer or not.

Hope you find this Very Helpful and best regards!

Aug 24, 2009 | Intermatic Hardware & Accessories

3 Answers

Delonghi DR18T Timer Replacement


before you replace the timer, check and see if the timer has a battery in it. if it has, then change the battery. it will work fine.

Jan 25, 2008 | DeLonghi DR-18TG Oil Filled Radiator...

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