Questions tagged [timer]

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5
votes
1answer
29k views

Why can't some light bulbs be used with timers?

I've seen the answer to questions asking why some bulbs can't be used with dimmers [1][2], and that makes sense, but why can't some light bulbs be used with timers? Aren't most timers equivalent to an ...
5
votes
1answer
683 views

Would this be the correct way to add a timer switch to an existing fan with thermostat?

We have an existing 120V AC exhaust fan wired to simple inline attic fan style thermostat. We would like to add a timer switch so the fan could be manually turned on as needed. Would this be the ...
4
votes
1answer
205 views

How to disable this timer?

Is there a way to completely turn off this timer?
4
votes
2answers
5k views

Timer needed on bathroom vent fan?

Does the International Building Code (IBC), or International Residential Code (IRC) require a timer on bathroom vent fans? (I realize all code is local, but just trying to get the standard rule.)
4
votes
4answers
865 views

Need help with wiring

I think I burned out one digital time switch and don't want to damage the replacement I bought. Can someone take a look at the diagram I drew and complete the wiring? The wiring diagram that came ...
4
votes
2answers
7k views

Is tungsten wattage different from regular wattage?

I bought a new in-wall timer rated 20 Amps. and it says '1350 w Tungsten', so I'm wondering if there are watts which are measured different then other watts? In my calculation it should be 20 x 120 = ...
3
votes
3answers
269 views

120 volt timer passes small amount of current when off

120 volt timer passes small amount of current when off. It's on Christmas outdoor LED lighting. The lights glow real dim when the timer goes to the off position. Does it on two different timers. ...
3
votes
2answers
11k views

Is it safe to unplug my electric water heater daily to save energy?

Could you please help me answer the following questions? 1) Will unplugging my water heater from the socket when not in use damage it? 2) Which energy-saving timer will work with my water heater? ...
3
votes
3answers
195 views

How to switch 40A timer used for outdoor lighting and direct 120V outdoor lighting

I am redoing my outdoor lighting and need to move 3 wall switches used for outdoor 120V lighting to a different place within the house. The issue is that the inground wire is 10/2 UF but the inside ...
3
votes
2answers
1k views

Replacing Bath Fan Switch with Timer Switch

I want to install a timer switch (it has four wires, red (load), black (hot), white (common), green (ground) to replace one switch in a 2-gang switch box having five incoming cables (see first photo). ...
3
votes
3answers
1k views

Simple 3-way countdown timer switch

I've reached the end of my rope with family members who won't turn off lights. I'd like to replace several light switches in my house with switches that just turn the lights off after 30 or 60 minutes....
3
votes
2answers
3k views

Install Honeywell RPLS740B with three-way switches (disable three-way?)

I would like to add a Honeywell RPLS740B to a circuit with two three-way switches to control four outside lights. I realize the RPLS740B is not compatible with a three-way circuit, but my question is ...
2
votes
2answers
11k views

Connecting a digital timer with 4 wires in a box with only three wire, white, black, and ground

I installed a digital timer in a box that previously contained a switch to an outside porch light. The box has only a white, black, and ground wire. The white wire in the box is hot, not the black, ...
2
votes
3answers
351 views

Does a neutral wire need to be run from a switch to the light?

We have an older church building that we would like to put our parking lot lights on a timer. We purchased digital timers only to find out that there is not a neutral wire within the switch boxes. We ...
2
votes
1answer
78 views

I replaced my bathroom exhaust fan switch with a countdown switch

I replaced the switch of the AirKing bathroom exhaust fan with a countdown timer. However, even the timer is working as expected, I noticed a drop in the fan power, it does not blow as much air as it ...
2
votes
2answers
402 views

Do i need a short-time timer for coffee maker/water boiler?

In many kitchens I have seen a short-time timer attached to the outlet where the coffee maker/percolator/water boiler is connected. I.e. to make coffee, they both need to start the coffee maker, and ...
2
votes
3answers
1k views

How can I wire this bathroom fan into the middle of an existing circuit?

I am upgrading a bathroom fan from below (no attic access) and replacing the single pole switch with a timer switch. I’ve wired switches and outlets before, but this one is throwing me for a loop. I ...
2
votes
2answers
11k views

Does a single-gang double timer switch exist?

I have a single gang outlet that current has a double/split switch installed controlling an inside light and an outside light. Ideally I'd like to have the outside light on a timer. Does a single ...
2
votes
2answers
1k views

How can I control a 240V heater from a pushbutton timer switch?

I am installing a new in-wall bathroom heater (240V - 6.7A). I want to put the heater on a timer rather than a thermostat. This will keep people from cranking the thermostat WAY up and leaving it that ...
2
votes
1answer
876 views

Installing timer switch with jumper wire into possibly old wiring

I'm trying to install push button timer switch for the shower fan. In the wall socket there are just two wires plus ground. Previously, a mechanical timer connected the two wires. Based on this ...
2
votes
1answer
8k views

How to setup a shower timer to actually turn off the water?

My kids take very long showers and I can't always be there to rush them out. Is there a way to have a timer start once the shower starts and actively stop the water after 10-15 minutes? I've looked ...
2
votes
1answer
338 views

Can a digital wall timer be used with a baseboard heater?

Can the Eaton PT18M-W-K (1800-Watt 15 Amp) timer be used for a 1500-Watt baseboard heater? According to the specs, the answer appears to be "yes". However, "heater" is conspicuously absent from the ...
2
votes
1answer
1k views

GFCI receptacle works partially when switch is turned off; not at all when on

I had an electrician install an outdoor receptacle recently, and it's not working as expected. Before the receptacle was installed, the only thing I'm aware of that was on this circuit was a single ...
2
votes
2answers
68 views

Can I use a secondary thermostat as a timer for my air conditioning system?

I want to install a timer on a split air conditioning unit to accommodate my energy plan hours. Too many people change the thermostat. Could another thermostat be used at the pump, controlling one ...
2
votes
1answer
4k views

Disable the timer on an exhaust ventilator

I have a bathroom exhaust ventilator installed that turns on when I flip the wall switch and that continues working on a timer when I cut the power in the switch. In terms of wiring, I see 3 cables ...
2
votes
1answer
577 views

Replace Tork 1101 timer with smart switch

I have a Tork 1101 mechanical timer that controls exterior house lights. I want to replace this with a smart timer/switch of some kind so I can set a sunrise/sunset scheme and don't need to remember ...
2
votes
2answers
861 views

Grounding a switch that has no ground screw or wire

I have a timer switch (see photo 1) that has No Grounding Screw and ** No Grounding Wire** protruding from it. It is to be installed into a plastic gang box and replace a switch which is currently ...
2
votes
2answers
11k views

How do I connect a timer to circuit box which controls our outside lights?

Currently our outdoor lights are being controlled by the circuit breaker in the box. We want to connect a timer to the circuit-breaker. There is a junction box with Black, White and a bare ground ...
1
vote
6answers
1k views

Should I be switching just the hot, or both hot and neutral?

I'm thinking of building my own alarm clock because none of the one's I've found are meeting my needs, and because it's kind of fun. I am a bit out of my depth on at least on part though, and I want ...
1
vote
2answers
957 views

Adding a (series) switch to a timer

I have an existing porch light on a (spring-style) timer. I would like to add a switch for more convenience, so that the light could be manually turned on for a few seconds or for several hours. The ...
1
vote
2answers
41 views

Connecting GFCI switch with digital timer switch

I moved my old bathroom exhaust fan to shower area, I need to install GFCI switch as per code. I also want to replace old toggle switch with digital countdown timer switch. Can I have blank face GFCI ...
1
vote
2answers
897 views

Fixed time outlet countdown timer

I have a coffee machine that uses a significant amount of power and is often not switched off. Therefore I'm looking for a device that is able to switch off the power after a certain amount of time (...
1
vote
1answer
54 views

Why is it okay for a Lutron timer to have an 18 gauge ground wire?

I am installing a new light switch and changing the fan switch next to it for a Lutron timer for the fan. The old switch had no ground, but the ground wires are available in the enclosure, so I will ...
1
vote
2answers
129 views

Why should a (non-dimming) light timer care about what's connected to it?

I am looking at the spec sheet for an Intermatic STW700W in-wall timer. It says: Switch Ratings: General Purpose: 15 A, 120 VAC, 50/60 Hz Tungsten: 8 A, 120 VAC, 50/60 Hz ...
1
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2answers
2k views

Help with bathroom timer and light switch install

I’m fairly new to doing my own electrical so be gentle if this is a simple question. I’m trying to install a fan button timer along with a new rocker switch for my bathroom. In the image below the ...
1
vote
4answers
26k views

Oven Timer not Beeping

I have a Whirlpool GR448LXPQ Electric Oven/Stove. When the timer is set, it counts down to 0, then shows end, but it doesn't beep. The beeper, however, does work when pressing the buttons. I was ...
1
vote
1answer
117 views

Should a timer switch 'reduce' load?

I bought a Leviton Decora Present Electronic Timer Switch...the kind with several button each set to different minutes for a bath fan. The fan is just a cheapo whatever-the-builder-got-in-bulk fan. ...
1
vote
2answers
525 views

How can I use this timer?

At my home I have this timer and I am not sure how to use it. Model seems to be TM8IM-24. I have found a company that sells it but cannot find instructions. Does anyone knows how to use it or where I ...
1
vote
2answers
244 views

Can anyone identify this heating timer?

So, It's getting quite cold now and my central heating is just going on and off randomly. There is what seems to be an unbranded heating timer below the combi-boiler (Baxi). However I have no idea how ...
1
vote
1answer
47 views

Options for adding a timer on heated towel rail socket in UK toilet

I live in the UK - my downstairs toilet consists of just a small sink and a toilet. Next to the sink is a heated towel rail which is wired straight into the socket, and is controlled by a switch. I ...
1
vote
1answer
80 views

Will leaving an electric hose faucet timer in direct sunlight damage the timer?

I recently bought an electronic outdoor hose faucet timer. I live in a desert with 110+ degree summers and plan to water a few trees in my lawn with it. Is there any risk of leaving this device out ...
1
vote
1answer
72 views

Making sense of wire colors and connections

I am having trouble identifying which wires are in my box despite all the colors being quite clear. The voltage drop between: White-Ground= 123.5 Red-Ground= .3 Black-Ground= .3 Black-Red= 0 Black-...
1
vote
2answers
2k views

Wiring timer switch into 2-gang switch setup with common load (red) with downstream load

I want to install a timer switch (it has five wires, red (load), black (hot), white (common), green (ground) and yellow (three-way switching but not needed for my application) to replace one switch in ...
1
vote
2answers
590 views

Can I install a sprinkler system timer underground?

I have a 4-zone sprinkler system. I had a construction crew at my house, and it appears they cut 1 of the 5 wires before pouring new concrete on top. Therefore, only 3 of the 4 sprinkler zones work. ...
1
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1answer
2k views

Light switch timer for outside lights

We just moved into a house that has outside patio lights controlled by 3 different light switches. I want to replace one of the light switches with a digital timer. What type of light switch timer do ...
1
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1answer
1k views

How do I replace a 3-way switch on 2-wire cable with a programmable timer switch?

I'm using the same Honeywell Programmable Timer from my last question, but under different conditions. In particular, I'm replacing a 3-way switch on 2-wire cable. Here is a schematic showing the ...
1
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2answers
548 views

Can I connect an indoor timer to lights split to 3 circuit breakers?

Currently the lights in the store turn on from 3 separate circuit breakers, I have to flip each circuit breaker to turn on each light zone. I would like to connect an indoor timer that will turn on ...
1
vote
2answers
1k views

Timer Switch Problem

I'm trying to replace a basic on/off switch for the fan in my powder room with a timer switch (which requires a neutral). The timer switch comes with red, white & black wires, the same as what the ...
1
vote
1answer
41 views

LED light with built-in switch; installing auto-timer between switch & outlet,

LED aquarium light (a bar with many small bulbs) with manual switch built into cord; Customer requested automatic timer. Placed automatic timer between LED's plug & wall outlet. Functioned well ...
1
vote
1answer
136 views

Three-way switch puzzle

I have an outdoor light controlled by a pair of 3-way switches, A and B. The switch B is much closer to the light. Here are the behaviors I observe. During the day: A: Up B: Up or Down Light:...