Question about Intermatic INC ET104C 24 HOUR ELECTRONIC TIME SWITCH 30 amp

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Dear sir I am trying to connect Model Et104, my questions are as follows: I am having a problem connectiing your system. Both power source 110v and 220 volts have to connect to your system???? If my power source is 220v how do I power my timer if I don't have 110v? Can you explain how I should make this system work.? My pump is 220 v (load) Awaiting your response.

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Hi,
The T104 unit should be a 240 volt timer... there is no need for 110v the motor is 240v and the switching is double pole so youare good, you just need to understand how to wire it properly.

A fellow expert has written a great tip on how to wire those timers with many senario's as to how they can be wired...

You can see that tip here

Check that out and you should be able to wire it from the information given there...if you do not understand it after looking at the helps, then find someone that can help you. He makes it just as clear and simple as it can possibly get when trying to help over the internet...

heatman101

Posted on Nov 06, 2010

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6ya6ya
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Posted on Jan 02, 2017

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0 when i check it i only get 120 on both when i ground then in 0 when i check the white to black is this right the make is a ge 19.9 hot water heater


You did not post the make and model of the unit. However you should have three wires on a 120 volt heater. Black is HOT. White is neutral and green or bare copper is ground. Anything that you check with a meter connected to black should show 120. white connected to ground across the meter would show 0.

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Sportsart 1080 treadmill


Perhaps the transformer is too small to supply the amount of current needed.

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Do not know how to open door of the intermatic wall time switch Do not know howto set timer--I want timer to go on at 7 PM and turn off at 7 AM


Question posted under ET104 timer.
This timer arrives with default voltage set for 240Volts.
Move voltage selector to select 120Volts as per instruction manual:
http://waterheatertimer.org/pdf/Intermatic-et104c.pdf
You can add a comment any time for more specific help with this timer.

1) If this is a plastic enclosure, then push inward to unlatch enclosure door.
See illustration: http://waterheatertimer.org/images/IMG_9431-Open-enclosure-400.jpg

2) Model number of timer and wiring diagram and programming appear on inside of timer door.
Add a comment with timer number if different from below.

3) How to program ET104 timer:
http://waterheatertimer.org/pdf/How-to-program-Intermatic-ET104-timer.pdf
-Read instructions.
-Set current time.
-Set program 1 for 7pm
-Set program 2 for 7am
-Not necessary to use programs 3 4 5 6 7 8

4) More resources
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#ET100

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Sir, I would like to ask if this samsung washing machine model Diamond Drum WA80V3 220V - 50Hz - 330W can be use in Cebu City, Philippines where the electricity power cycle running is 60Hz?


It should be fine but I'm not sure how it will work with the 220v. Be sure that the power there is 110v red to white and 110v black to white. If the power is not, it probably won't work. Good luck

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1 Answer

Dear sir I am trying to connect Model Et104, my questions are as follows: I am having a problem connectiing your system. Both power source 110v and 220 volts have to connect to your system???? If my...


Fixya answers questions about other people's products.

I specialize in timers.
Intermatic is changing their product line
I suggest you download the manual:
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/et104c%20-%20english.ashx

The manual is generic across all the ET100 series products.
The manual does not describe individual models.
The instructions are on the timer door.
Look for the clock voltage.
The clock voltage tells the story of your timer model.

NOW lets say your clock voltage is 120V.
I believe you suspect the clock voltage is 120V.

To make this timer work with your 240V cable, there are 2 methods

Method 1) To meet code, run a white wire from nearby 120V receptacle.
This is a Neutral wire.
Connect the Neutral to terminal 1
Connect one leg from the 240V cable (1 of the 240V wires) to terminal 2 and that will complete the 120V circuit and the clock will run.
This is true because each leg of a 240V circuit is actually 120V, and only when the two legs are combined do they produce the 240V circuit

Method 2) Connect bare ground wire to terminal 1 and to grounding screw
The bare wire connects to the Neutral busbar in the main breaker box, so it will complete the 120V circuit just as described above.
This is not code, but your clock will operate.
Then connect one leg from the 240V cable to the terminal 2

IF your clock is 240 V, then connect both legs of the 240V cable to terminals 1 and 2

7:59 CST Add a comment if you need more assistance, I will be here later this evening

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1 Answer

I have accidentaly switch my computer to 220 volts and well in fact it is intended for 110 volt. ans now i cant turn it on,Is there any solution on how to fix this problem?


If you did not connect the computer to a 220V power-source, i.e., you connected to a 110V source, then you probably are OK, except that the computer-components are probably only getting "half" the power that they normally get.

Turn the computer off, and reset the switch to 110V.
Turn the computer on, and it may start properly.

If all else fails, then take the computer to a qualified technician, for more trouble-shooting, i.e., replace the power-supply, or replace the motherboard, or may even replace _more_ than one component.

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Want To Install a 1250 W Power Inverter on a Class A Motorhome


You are definitely on the right track. When you choose your power inverter consider the following: buy the inverter for around 40% more of your anticiapted load. You will need a double pole transfer switch to isolate the inverter from the generator(and visa versa). A simple double throw double pole switch with fuse or breaker protection should do it. You wouldn't necessarily have to isolate the curbside circuit as the double pole double throw switch would simply be switching the power from the existing generator to your new inverter for only the roadside circuit; i.e. you don't need to worry about the curbside power source as it will always be connected to the other branch circuit. Even if your generator or other source came on the system would be protected no matter what the the roadside configuration was set to as only one source of the 2 roadside power sources would be connected at any give time to the roadside circuit. The six dots represent the connecions for the double pole, double throw switch; shown supplying the new inverter to the roadside circuit while the source from the existing generator or inverter is disconnected via this switch from the roadside circuit:

existing * *------* new power inverter; switched to source
* *------*
^
Middle 2 dots represent your roadside circuit and represent the "throw arm" of the switch. Safe and simple! If you don't have a voltage meter for your batteries you can purchase one for a few bucks. Just run it across the terminals so you will know battery condition as it is being drained (you may already have this indicator) You can find a transfer switch at an electrical supply place, maybe even Lowes. Make sure you get the switch that will be in a protected enclosre. The enclosurre can be purchased seperately if you can't find the switch/enclosure package together.

Good luck....gary

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I have a new HP printer that is telling me an unknown error has occurred when I attempt to print a document.


does it show any error number or any code?

i would suggest you to do a hard reset of the printer by plugging off the unit from wall power for one night for a hard reset sir

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Stays on even if HU (CDA-9833) is off


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