Stop after 30 minutes, after the last motion detect. That app and ST_Anything are a great combo. builders mate - Many thanks for your explanation. This may be a bit of an overkill for what you’re looking for, it’s designed for whole home management for temperature and humidify and supports a variety of different devices you can use to control both. It didn’t have motion sensor trigger so I added it. Turn off the power to the fan at the main breaker panel. Removes Heat All Rights Reserved. Isolate the Circuit by taking out Fuse in Mains Box or Switch off the Circuit Breaker and open up Fan Timer and have a look. Finally, it will turn off the fan no matter what after 20 minutes. This is very important, as it will keep you safe while working and prevent electrocution. This is because many include a "run on" capability that is triggered by the operation of the light switch, and it is not permitted to have a device powered from two separate circuits. If it rises too fast, indicating a hot shower, then the fan turns on. Extractor Fans with an integral timer or timed switch need a 3 core and earth supply to allow the unit to run on after a light is switched off. But it would kill battery life. It has been working great since January when I installed the sensor. Try using the search bar at the top of the page to search for some keywords, or choose a topic and submit your own question. I built the Piston in less than 2 minutes. It will turn off the fan after 10 minutes if it was turned on manually but only if the humidity is below a set value. Hi this video is about wiring a bathroom extractor fan , wiring fan to the three pole fan switch isolator and pull cord switch. An extractor fan is typically used to vent moisture from a bathroom to prevent mould from forming. Think with conditions, the Piston is monitoring each condition so when they all become true then it executes the Action…. Selecting a bathroom extractor fan that meets the current Building Regulations. One issue is the noise extractor fans produce. It will turn on the fan if humidity rises above a set value. Webcore is an option. With the bathroom light switch off, I turn the fuse on from the CU. You can also choose between automatic or self-regulating fans. I replaced a noisy old extraction fan in my bathroom today. There are ultra-quiet options available. Before you do any electrical stuff, shut off the power for that room at the circuit box. In the ceiling is a small extractor fan with a halogen light in the centre. Extractor fans in general also help with the safety of bathroom circuits by mitigating moisture build up from steam. If you haven’t installed webCoRE yet, I strongly suggest that you do. Only thing I can think of is to take down the fan fixture, disconnect the wiring, then put … Not sure about the ZWave+ 14xxx series. Whenever working with electrical fixtures, it's best to have the power flowing to the unit completely turned off to avoid electrocution. I posted on the webCoRe forum this morning for some help and am awaiting a response. I would suggest WebCoRE. Turn off the circuit breaker controlling the bathroom you plan to work on. I built the Piston in less than 2 minutes. What you need to know when installing extractor fans in a bathroom, wet or shower room: As a DIY’er replacing an old extractor fan, electrician, builder, plumber or tradesman the same considerations apply. It can do alot more! Use the “Action” block for what you want to happen. This allows the fan to run for a limited time after someone leaves the bathroom after a shower, or for some “other” reason that does not involve humidity. I bought a Manrose gold 'basic' wall mounted fan from B&Q here I installed it and away it went, trouble is, it wont stop when i turn the light off. If I understand your post correctly, ST removed the ability for the device to monitor manual state changes for devices and then take action based on that change? If the door is closed, you restrict air movement and your fan works harder and longer. The phone works but its just easier, for me at least, to do it on a desktop. It will turn off the fan after 10 minutes if it was turned on manually but only if the humidity is below a set value. Your extractor fan is probably activated when your turn on your bathroom lights and remains on for some time after the lights are switched off. Step 2 - Remove the Cover. hoping someone can set me straight. Easier to copy and paste, move sections, select devices, etc. How to fit and install a bathroom extractor fan with or without a timer. Does anyone use this automation? I’m not a programmer, and I use it for all of my automations. This lets the fan replace bad air with fresh air. If the kitchen or bath fan shows any signs of life when you turn it on (such as humming), you know it’s receiving power. There was a parameter for programmatically or manually but I believe ST has removed this from their code. Once a best answer has been selected, it will be shown here. The thing that made me give up and just use a timer was the fact that most battery sensors do not transmit the humidity reading as often as you would like for it to really be effective. Extractor fans in bathrooms are frequently powered from a lighting circuit. If your fan is running all the time at a high rate, it may be possible to install a motion-sensing module. I turn the bathroom light off and the fan continues as expected as it has a timer but it doesn't stop after 2 minutes. 4 posts • Page 1 of 1. by corum_uk » Sat Dec 20, 2014 4:18 pm . If you add a trigger to any blocks, then you will need at least 1 trigger in all blocks. The accumulation of dust in the fan blades is one of the most common problems that may cause the bathroom extractor fan to stop working. For convenience, you can replace the standard on-off fan switch with a timer switch that turns the fan off after half an hour. Bathroom extractor fans play a critical role in reducing the levels of moisture and odour in one’s bathroom. https://raw.githubusercontent.com/MichaelStruck/SmartThingsPublic/master/smartapps/michaelstruck/smart-bathroom-ventilation.src/smart-bathroom-ventilation.groovy. My landlord recently changed the extractor fan and got rid of the switch that let me turn it off for the night. Well, at least at its bare minimum. Head to your circuit breaker and flip the switch marked for the bathroom fan (or all of the bathroom switches, if there's not one specifically marked for the fan). The Timer is sticking or has become Faulty. There are probably a few standard rules you could use in conjunction to do this, but not 100% sure on that. The below Piston can be imported using the import code. Then unplug the fan and remove the motor plate (Photo 2). This is because when you switch the fan off at the pull cord,there is still a permanent live wire connected to the fan for the timer. The switch is a GE Zwave+ switch. Some motor plates release by pressing or prying on the side of the fan housing. It normally runs for a few minutes then switches itself off automatically but has now been running for several hours non-stop. For that, of coarse, you need some programming abilities, it’s not too heavy and there are lot’s of examples out there to pull from. My landlord recently changed the extractor fan and got rid of the switch that let me turn it off for the night. Powered by Discourse, best viewed with JavaScript enabled, How do I turn off a bathroom exhaust fan when humidity is below a threshold, webCoRE Wiki - Web-enabled Community's own Rule Engine, johnathan398/SmartThingsPublic/blob/master/smartapps/john-fullman/smart-humidity-fan.src/smart-humidity-fan.groovy, [RELEASE] Humidity and Temperature Management with Scheduling (homes without HVAC/thermostats / using heaters and cooling appliances / vacation home / remote homes), Turn off after motion stops but only if humidity is below a certain threshold. I had an Aeotec Multisensor and you could fiddle with the poll intervals. The idea of a fan isolator is so that the fan cannot become live accidentally during maintenance, but also functionally, so that you can switch off the fan without having to turn the lights off. Remove the extractor fan cover. Cheap or poorly-installed extractor fans can be noisy. 4. It comes on when the bathroom light is switched on, and continues to run for a couple of minutes after the light is switched off. The Wiki does an excellent job of explaining how to get it working. This Q & A is one of thousands posted in our Technical Expertise area, and answered on a daily basis by our Voltimum Experts. Then unplug the fan and remove the motor plate (Photo 2). Question: I have a new Vent-Axia 12V bathroom extractor fan. A UK bathroom must be ventilated by either a window or an extractor fan If your bathroom has a toilet only, you are fine to use a window alone as your source of ventilation In new-build bathrooms with a bath and shower, mechanical ventilation is required in the form of an extractor fan. The extractor fan in our windowless downstairs toilet (which is activated by switching on the light via a pull chord )refuses to switch itself off, even when the light switch is pulled again to switch the light off. This complete guide to choosing an extractor fan is an in-depth guide on extractor fans for kitchens and bathrooms to improve the airflow and ventilation in rooms which can be prone to excess moisture from cooking and showering on a regular basis. I have found that the Zooz Multi 4-in-1 works GREAT for humidity sensing. Type, size and positioning of your extractor fan. I pretty much did something similar to this. If you think your air quality is fine, and you want to make the fan switchable again, you should be able to easily swap the outlet back out for a switch. It's on a pull-cord, and comes on okay, but won't turn off at all when the light is turned off. Disassemble the motor from the fan housing, which lightens the weight you have to hold over your head while you work. Turn off the power to the fan at the main breaker panel. Most bathroom extractor fans will be triggered by the light switch when you enter the bathroom, with others triggered by humidity levels or movement. Fans in other locations may b… It doesn't stop after 8 hours. It's built into the loo ceiling and there's no sign of any external timer, so presumably the time in somewhere inside? Bath fans vary in design, but motor replacement requires the same basic steps, no matter which brand or model you have. That’s odd. There are a few options. The fan is a 30 year old Silovent make. 1. I used webcore to make a piston: If the fan is on, and the light is changed to off, wait 45 minutes then turn the fan off. [5] The manual on/off was something that was someone picky (flaky) on what device it would work on. My bathroom lights turn on with motion and turn off after 5 minutes of no motion. Another essential safety tip is using splash proof switches on all bathroom devices, which allows you to safely turn things on and off with damp hands. Mine doesn’t seem to be doing that correctly. When you leave your bathroom and turn the light out, your fan will also turn off unless your fan has an over-run timer function or a humidistat. It looks like it’s supposed to monitor the switch state and if turned on manually, it is supposed to turn off the fan after X minutes. The former is vital because it affects the lifespan of furniture in the bathroom and provides a conducive environment for the growth of moulds which may affect persons with respiratory ailments. I have been using the X-10 sensors they are not bad batteries last a couple of months, longer on less used ones, but their timing can be unpredictible, 4 of them are quite acceptable, however 2 are about 2.5 slower than they should be. Then turn on the wall switch to confirm that the power is cut off. Sorry, we can't find any related questions. Hi thanks for the response. That app I posted above actually uses humidity levels from the Aeon Multisensor 6 I have installed in there. Remember, only 1 trigger per block unless separated by “Or”. WebCoRE is best configured in a desktop browser or larger screen. - If you have a timer on your fan you need to have isolation for maintenance. This can be annoying if you are trying to relax in the bath, or if your bedroom is close to a bathroom with an extractor fan that comes on when the light is switched on. Light “Is” on is a condition. It doesn’t seem to be working with my GE switch. My fan usually turns on within 3 minutes of the humidity rising over the set threshold. My fans are on a timer to turn off I think 20 minutes after the light goes off whether its turned of manually (which we usually do) or if its left to time out from motion (which my 8 year old mostly does). Without turning it off, you could be electrocuted. There is nothing in the regs to say that the light must be isolated at the same time, as the light switch already does this. © AnswerBank Ltd 2000 - 2021. Turn off the power. Remove the cover and use a flashlight to examine the fan blades for dust and debris. I replaced a noisy old extraction fan in my bathroom today. hoping someone can set me straight. Once you get a handle on it, you will see how simple webCoRE is. Are you able to access the Timer Mechanism of the Fan or is it a sealed unit ? Allow at least 30 minutes after you leave for the fan to completely change the air in the bathroom. In the loft space two white wires come off of the unit and enter a small white box. You definitely don't want to be working on the fan wiring while the electricity is still running! Just take one of the apps available and modify it to meet your needs. But it would kill battery life. Given that most bathroom extractor fans tend to be switch on when you turn the bathroom light on and then run for 5-10 minutes after the light is switched off it’s not hard to see that you’ve very little chance of getting rid of the moisture laden air unless you leave the light on for an hour or so after your shower. I turn the bathroom light on and the fan starts up. In small bathrooms, it shouldn't take long to clear the air but in larger rooms it can take between 10 and 15 minutes. Is there something I’m missing? It turns off when the humidity goes back down. Turn off the electricity to your fan before cleaning it. A bathroom extractor fan isn’t a luxury – it’s a must. Just think your automation out and use the “If” blocks for conditions and/or triggers. Fans with Humidistats will turn on automatically when humidity in the bathroom reaches a pre-set level and off when the humidity falls back to its preset level. It didn't respond to the on/off switch, so I changed the switch, and yet when I turned the breaker back on, the fan was still not responding to the on/off switch. Mysteriously after a few days of this, it suddenly decided to respond to the on/off switch. When you leave, keep the door open. I’m not sure my humidity sensor is working out too well, since it only updates every 8 minutes. Quick tip: to help the bathroom fan remove odors and hot, moist air more efficiently: Turn on the fan when you enter so the air is already moving. I’m using the 12722 switch. Look at the wiring for a bathroom fan on the internet. We have... mould around bathroom extractor fan (water trickling down extractor pipe) Started noticing mould this winter. Find your main electrical panel, circuit breaker, or fuse box, and turn off the circuit or remove the fuse that powers your bathroom. This must be more than just switching off the mcb in the fuse box. I had an Aeotec Multisensor and you could fiddle with the poll intervals. I tried doing the same thing you are trying. I built the Piston in less than 2 minutes. It doesn't stop after 5 minutes. It will turn off the fan after 10 minutes if it was turned on manually but only if the humidity is below a set value. Bathroom extractor fan doesn't turn off - any ideas? The fan doesn't come on. Think about your normal morning routine. I tried using the hard wired option also, but at least with that sensor the response time for motion was terrible as compared to the very inexpensive Iris sensors I picked up at Lowe’s a, I rolled my own using ESP-8266 and ST_Anything, its pretty snappy turning on, then I have min delay on turning off. Two wires (red and brown I think) exit the box unit. I use the bathroom frequently at night - the buzzing fully wakes me up and is really unnerving also in the evening when I want to relax, I don’t know, do a face mask, paint my nails, whatever. Before you begin, make sure to turn off the mains power to your bathroom. To clarify it is not a fan heater or extractor but just a fan as you might have on your desk. Lay down protective sheets. Fasten the fan housing in the opening and … I use the bathroom frequently at night - the buzzing fully wakes me up and is really unnerving also in the evening when I want to relax, I don’t know, do … It will turn on the fan if humidity rises above a set value. For days I've had the breaker off except for when I need to use the bathroom lights. Turn off power to the fan. Has worked like a charm for 2 years now. Also UK bathrooms have traditionally not included power sockets, so it is common to not have any general purpose power circuits available in the room. I have the Aeotec Smart Sensor. Is there something I’m missing? I have also developed a fault in my DHT22 sensor it goes from -1 to 97.1 and back - at around 60% humidity level with no stops in between. 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