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We were here together pipes3/19/2023 ![]() They are always on time, professional, reasonably priced and so good at their job. I have a monthly service plan with this company too - that I started in October - and it's been great. The service was 10/10 and he really took the time to explain to me what was happening. The fix was rather simple, but took time and thinking through the problem. Snow was blocking my external exhaust on the home, so it couldn't create combustion to turn on the furnace. I left a voicemail for MT at 7:30 and received a call at 8:08 AM and a technician was at my home at 9:40 AM. It's currently -8 and I woke up to my home at 54 degrees. I cannot speak highly enough of Master Tech and their staff. If your AC is acting up and none of these quick fixes did the trick, we’re happy to help diagnose, treat, and prevent future problems. It’s a toxic chemical that should be handled by MasterTech, Columbia’s HVAC pros to protect your safety. If you suspect a refrigerant leak, do not attempt to replace it yourself. Bubbling or hissing noises from your HVAC unit.Air coming out of your vents isn’t very cold.Ice on your refrigerant line is the #1 sign of a leak, but here are some others to pay attention to: Check your owner’s manual for details.ĭespite conventional wisdom, refrigerant doesn’t get “used up.” That means if you’re low on refrigerant, you have a leak. If you’re mechanically inclined, you can carefully clean them yourself with compressed air, a brush, or mild detergent and water. Blockages can also happen on the evaporator coils themselves. These are most often blocked by furniture or curtains. Unblock any return vents-the vents that suck air in. Open all supply vents-the vents that blow air out. Check and replace as needed, at least once a month. Inspect your air filters and replace them if there’s any visible dirt. When it comes to frozen refrigerant lines, the best-case scenario is you have a blockage somewhere. Allow it to thaw completely and naturally. You’re more likely to damage your equipment. Leaving your unit on despite the freeze-up may burn out the compressor and motor, which can lead to replacing the entire system. So as you’re going about your DIY business, make sure you avoid the following: ![]() (Spoiler alert: These are the two things you’re going to check in a bit.) Step 3: Review the don’tsĭamage to your HVAC system is costly and time-consuming. So, why would refrigerant get too cold? One of two reasons: low airflow over the coils or low amounts of refrigerant. (That’s right AC units don’t really “add cold” to air they actually “remove heat”!) If the refrigerant gets too cold, the moisture in the surrounding air freezes. The evaporator coil holds refrigerant, which is a liquid or gas that absorbs heat from warm air. When your refrigerant line is frozen, your indoor evaporator coil is probably also frozen. But neither is causing massive (expensive) damage to your AC system, right? So give the poor thing a chance to thaw out. We know, we know: Turning off your AC when it’s sweltering isn’t anyone’s idea of fun. Turn OFF your AC, turn the fan setting to ON, and wait three of four hours. It’s not good when your AC unit “freezes up.” But don’t panic! If you see any frosty bits on the refrigerant line (or anywhere else, for that matter), there’s plenty you can do on your own before you call us. And by “unusual” what we mean is “frozen.”Īlarm bells go off in your head. As you’re working, you glance over at your trusty AC unit, and something looks… unusual. You’re looking forward to finishing up your chores so you can head inside and enjoy a nice, cold beverage in your nice, cool home. Let’s say you’re mowing the lawn or pulling weeds. ![]()
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