Stay out of hot water after a shut-off
Your AC does not use water to cool your home, and shutting off water will not affect air conditioning operation since plumbing and HVAC systems stay separate.
Condensation lines drain moisture from your AC unit, and in older homes with outdated setups, this condensation can flow into sewer lines instead of outside.
You should turn off your water heater before extended travel if the tank looks empty to prevent pressurized ruptures that can cause leaks and damage.
Hiring a local air conditioner installing professional provides expert guidance on condensation line drainage and helps you prepare your system when water gets shut off.
Getting the water shut off is no picnic. Plumbing emergencies or utility problems really know how to ruin a good day. But it’s important to keep a level head after a water shut-off and be careful turning it back on so that none of that nasty bacteria in the pipes affects your drinking water. But does shutting off water in your home affect your air conditioning, too?
Fortunately, residential HVAC systems are separate from home plumbing systems. A problem with one doesn't mean it'll cross beams and affect the other. Central air systems aren't connected to your home's drain pipes at all. Whatever happens with your plumbing is largely separate from the AC, barring a flood or other extreme conditions creating electrical or mechanical problems. Plumbing issues like clogs, leaky pipes, or a faucet that won't shut off will not affect your air conditioning at all.
Though they aren’t directly connected, HVAC and plumbing systems share two elements that can cause problems if the water flow is disrupted: condensation lines and water heaters.
Have you ever walked down a city block with apartment buildings full of window ACs and gotten annoyed at those droplets that hit your head? That's condensation, which will drip off of air conditioners. The condensation line is a bigger and more complex version of the drips that come from these window AC units.
The condensation line directs the flow of condensation from the HVAC system to the home's exterior. With most units, the condensation drips into a pan underneath your interior unit and flows into a pipe in the exterior wall so that it drips outside. However, in some setups, condensation flows into the sewer line.
According to the International Code Council, which sets the international mechanical codes for residential construction, it is illegal as of 2021 to connect condensation lines to plumbing drains. This type of setup is only seen in older homes, and even then, it's pretty rare. Most homeowners don’t have to lose sleep over this since there’s a high likelihood your HVAC system’s condensation line drains outside.
But if you turn the water off and then back on, there’s a small chance that the accumulated condensation will go somewhere expensively inconvenient. You’ll want to speak to a local AC installer about your options for redirecting this condensation or how you can prepare for situations where the water gets shut off. This is especially true if you have an older home that’s no longer up to code.
Water heaters are connected to the heating element of your HVAC system. While separate from the air conditioning aspect, they are still part of the same system in most residential HVAC setups. When the water gets turned off because of plumbing emergencies or you have extensive travel planned, you don't need to shut off the water heater simultaneously. So long as your heat is functional and the temperature isn't set very high, you shouldn't have any problems.
However, if the water gets turned off during colder weather and you have the heat cranked up, this can put pressure on the water heater's storage tank. Consistently high temperatures can pressurize the tank and cause it to leak. Age, loose fixtures, and unrelated damage to the tank can also cause the water heater to leak and create a messy and expensive problem.
We highly recommend inspecting your water heater annually for signs of degradation. If you spot any potential warning signs, consider contacting a local plumber.
If you lose pressure on the cold water side of the water heater, you should definitely shut off the water heater. This is an incredibly rare occurrence, but one where you should turn it off to prevent further damage.
The water heater also saves water in its tank so that you can always take that spa-worthy long, hot shower when you need to. But if this tank looks empty and you're about to take that three-week dream vacation, this is also the time to shut the water heater off after voluntarily turning your water off. This will prevent pressurized ruptures until it's time for normal water flow to resume.
Great company! Price was competitive, technician showed up on time and completed the job (exterior electric Radon fan replacement) quickly. Would hire them again.
MaGen Property Inspections and Radon MitigationAs usual with ECO, tech Jordan was outstanding, very professional, very knowledgeable, and very thorough with repairs made to tankless water heaters. Very highly recommend ECO!!!
Eco Plumbers, Electricians, and HVAC TechniciansRaven and crew does absolutely fantastic job. They are very professional if any concerns were to occur with any of her work she always took responsibility and finished out with a great job. I have worked with her business for a year and have always been satisfied. Very trusted business and...
Creations of Transformation LLCI would recommend this company to anyone! He showed up on time, was friendly, completed a very difficult repair on our dryer vent cover, was responsive, and pricing was extremely fair and competitive. I would have him back to do any of our repairs or cleanings without hesitation!
U.S.A. Dryer Vent, LLCAce Fireplace Services' chimney sweep service is truly exceptional. They used advanced technology to ensure a thorough cleaning process, and my chimney has never looked better. I highly recommend their services.
Ace Fireplace ServicesThe technician was very professional and friendly. He answered all my questions and was very thorough. He left the fireplace area very clean . He inspected from the roof and advised me as to other work that might need to be done. There was no pressure there. I was very satisfied with the...
Supreme brick & chimneyExcellent experience with hiring Tether House to Mount our 77’ Samsung TV in our bedroom. Fast, friendly, and knowledgeable. Highly recommend.
Tether HouseOn time, clean and finished fast. Windows seem sturdy and the finish is good. Caulking was done with no smudges. Would recommend.
Window Depot USA of Central OhioGreat job...edging and pre clean up went well with a great job with seal coat. Friendly, efficient and professional.
All Star Paving and SealingGood workers and they do a good job.
Mira ConstructionFrom average costs to expert advice, get all the answers you need to get your job done.
Depending on whether your model dehumidifies, you may need to add or remove water from your portable air conditioner to keep a room cool.
When leaving home for weeks or months at a time, you should shut down certain utilities and appliances to save on energy usage. This guide breaks it all down.
A clear AC drain line keeps your system at its best. Learn how to clean your AC drain line with household ingredients and tools you already have.
Do you have a clogged AC drain line? We dig into the reasons behind those pesky blockages and how to clear them for optimal AC performance.
Learn the common reasons water drips from your AC vent and how to identify and address the root issue.
Air conditioning units can keep you and your family cool all summer long, but when they stop working, you can be left scratching your head. Read on to learn how to fix some of the most common window AC problems yourself or with the help of a pro.
