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AC Repair

Air Handler Leaking Water On Floor? 5 Dripping Split AC Causes

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Air Handler Leaking Water On Floor

“Why is my air handler leaker water on the floor? Is it normal for water to be dripping from a split AC indoor unit?” Not normal at all. If you see water leaking from the air handler and running down the wall on the floor, there is something wrong with the indoor AC unit. We … Read more

Categories AC Repair Leave a comment

Should You Cover Your Air Conditioner In The Winter? (Do’s/Don’ts)

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“Should I cover my AC unit in the winter?” This is quite a frequent question we get in the fall and early winter. Covering an air conditioner in the winter (we are talking about the outdoor unit window AC and heat pumps) does protect the unit but not as most people imagine. We are going … Read more

Categories AC Repair, Air Conditioners Leave a comment

Why Is AC Spitting Water Inside And Making Noise? (2 Reasons)

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Air conditioner spitting water. This is quite a common problem in hot and humid summers. The water that is coming from the air conditioner is not merely leaking; you will see air conditioner water spray inside the house. Let’s explain what is happening when AC is spitting water into a room, and how you can … Read more

Categories AC Repair, Portable Air Conditioners, Window Air Conditioners Leave a comment

How Long Does It Take To Thaw A Frozen Air Conditioner? (Unfreezing)

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If you have a frozen AC unit, you will have to unfreeze it before you can start using it again. How long does it take for an AC to unfreeze? We will look into how long does it take to thaw a frozen air conditioner naturally, and with quicker unfreezing methods. Note: You must not … Read more

Categories AC Repair Leave a comment

How To Unfreeze AC Unit Fast? 4 Coil Defrost Options (Ice Thawing)

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If your AC is frozen, you will need to unfreeze it. It is not all that obvious how to defrost the AC unit. That’s why we are going to explain how to unfreeze an AC unit. Note: Always turn off a frozen AC unit. Running it might damage the compressor, and compressor replacement is the … Read more

Categories AC Repair Leave a comment

How To Tell If AC Is Frozen? 3 Tell-Tale Signs (Ice On Evaporator Coils)

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An air conditioner can freeze over. This happens quite often. If you suspect that your AC unit is not performing as it should, one of the first things to check is if the AC is frozen over. How to tell if AC is frozen? Here is what happens when AC freezes up: In most cases, … Read more

Categories AC Repair Leave a comment

Outside AC Unit Not Running But Inside Is? 6 Culprits To Check

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Central AC units and mini splits have two main parts – 1 outdoor and 1-8 indoor units – connected via the refrigerant and communication lines. When everything is working as it should, both indoor and outside AC units are running. If the outside AC unit is not running but the inside is, you do have … Read more

Categories AC Repair Leave a comment

10/2 Or 10/3 Wire For Air Conditioner: Why 10/3 Is A Stupid Idea?

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All air conditioners have to be wired. Of course, you will have to use adequately sized wires. In the case of AC units, we most commonly think of 10/2 and 10/3 wires. That’s why we encounter many 10/2 vs 10/3 wire for air conditioners dilemmas. In actually, this is not a dilemma at all. The … Read more

Categories AC Repair Leave a comment

AC Breaker Keeps Tripping Breaker: 9 Common Culprits & Fixes

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“My AC keeps tripping the breaker. What’s wrong? How do I stop my AC from tripping the breaker?” AC tripping the breaker is annoying. Even more troublesome, repeatedly trying to run an air conditioner that keeps tripping the breaker can result in permanent damage to the AC unit. So, easy on the breaker reset button; … Read more

Categories AC Repair Leave a comment

Thermostat Not Reaching Set Temperature: 7 Causes + Fixes

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The thermostat setting is quite simple: Set a temperature, and AC or furnace will reach the set temperature. That’s the theory at least. In practice, we experience a problem of the thermostat not reaching the set temperature quite often. Here are just a few ways how homeowners express this temperature setting problem: “Why does my … Read more

Categories AC Repair, Wiring Leave a comment
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HVAC metrics:

SEER = (1 × EER100% + 42 × EER75% + 45 × EER50% + 12 × EER25%)/100

EER = BTUcooling/W

HSPF = BTUheating/W

COP = Q (useful heat)/W (input work)

ACH = CFM x 60/Area x Heightceiling

Total Heat (BTU/hr.) = 4.5 x CFM x Δh (std. air)

Sensible Heat (BTU/hr) = 1.1 x CFM x Δt (std. air)

Latent Heat (BTU/hr) = 0.69 x CFM x Δgr. (std. air)

1 HP = 746 Watts

1 kW = 3413 BTU

 

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