Common AC Repairs You Can Do Yourself

If your AC unit is not keeping your home cool, it may be time to call a professional like Pro Master Heating & Air Conditioning. However, there are some common problems that you can resolve yourself before contacting an HVAC specialist.

Start by rinsing out your condenser unit and cleaning it. Make sure to use a rough brush to dislodge any dirt or debris. Then, use a fin comb to straighten out any bent fins.

Refrigerant leaks are a common problem that can damage your air conditioning unit’s function, finances, and health. Luckily, it’s also one of the easiest to fix. AC refrigerant leaks are caused by damage to the evaporator coil or condenser coil. When this happens, the copper lines that distribute the refrigerant can crack or break, which causes a leak. You’ll know when this happens because you’ll hear a hissing or gurgling sound during system operation.

The best way to prevent refrigerant leaks is to have regular maintenance checks performed by a professional HVAC company. This will help to ensure that the refrigerant levels are at their optimal level and can catch problems before they become serious issues that require expensive AC repairs.

A leaking evaporator coil or condenser usually results in a hissing sound during system operation. This hissing is caused by the escaping air from the leaking coil. If you hear this hissing, shut off your air conditioner immediately and call a professional AC repair company to come and investigate the issue.

Erosion of copper coils is another major cause of leaks. This is because the formic acid inside a leaky evaporator coil will corrode the copper lines over time, creating holes and causing the refrigerant to escape. Suppose you suspect erosion is a problem with your air conditioner. In that case, it’s important to contact a professional HVAC repair company as soon as possible to avoid further issues with your cooling system and minimize the amount of freon that must be removed from the copper lines during AC repair services.

If the air conditioning repair experts locate a leak, they can perform a few different types of repairs to close up the leaky area and stop any more refrigerant from being lost. This can involve soldering pipes together using special fluxes designed for use with air conditioners, replacing o-rings around valves, and sealing evaporator coils with sealants. Some AC repair specialists may also need to remove and replace the entire coil assembly if a leaking coil has damaged it.

If your air conditioner is working hard, but your home doesn’t seem to be getting cool, a clogged vent might be the problem. This is an easy fix and can often be caused by something as simple as dust collecting in your air vent. If you can’t find anything obvious, try relocating furniture blocking the vent and ensuring it is clean. Also, make sure the air filters are cleaned regularly to avoid clogs.

A more serious cause of clogged ducts is holes and other damage to the ductwork. This can allow air to escape, lowering the pressure in the ducts and reducing your AC’s ability to push air through them. You can fix minor leaks with duct tape, but large holes may require the replacement of the entire ductwork system.

Other common causes of clogged ducts include bird and rodent droppings, faulty air filters, and other physical objects. Mold and mildew can grow inside ducts, especially if they leak or have a damp spot in the ceiling. These can create an unpleasant odor and lead to respiratory problems.

Another sign of a clogged duct is seeing temperature differences between rooms in your house. Your HVAC system is designed to disperse air evenly throughout your home, so a big difference between different rooms is a red flag that something is wrong with your ductwork.

If you are unsure what is causing the problem, you can check with an AC technician. They will go around each vent while your HVAC system runs and see how the airflow compares. This will help them locate the clogged duct and determine the needed fix.

The compressor is the heart of your air conditioning system, pumping refrigerant gas throughout your home to remove heat and humidity from the air. When the compressor is damaged, it can cause all sorts of AC problems that result in a warm, sweaty house. The best way to determine if your compressor is damaged or needs repair is to have an HVAC professional inspect the indoor and outdoor units.

The first sign of a problem is usually when your cooling system no longer blows cool air. A damaged compressor can also make a high-pitched squeal when it turns on. The squeal is a sign of a bearing failure, which causes the metal components to rub together. This is usually a very serious issue that requires the replacement of the entire compressor.

In addition, a damaged compressor can cause low refrigerant levels and an increase in your monthly electricity bill. This is because the compressor must work harder to keep up with your cooling needs, which uses more energy than normal.

Another sign that your compressor is malfunctioning is a puddle of water around the unit. This means there is a refrigerant leak, and it should be fixed immediately.

Other signs of a faulty compressor include reduced airflow from the vents, a high power bill, and an inability to cool the house as before. In some cases, the compressor will just shut down altogether. This is most likely caused by a failure of the high and low-pressure sensors that detect whether there are low or high refrigerant levels.

A damaged compressor can lead to many other issues, including low airflow, a dirty evaporator coil, insufficient refrigerant levels, and clogged suction lines. A faulty compressor can even cause the system to overheat, costing an expensive AC replacement. While some DIYers may try to fix a damaged compressor themselves, this is always a bad idea, as it can cause other electrical problems that could short-circuit your house and create a fire hazard. Hiring a trained HVAC technician for any electrical repair or replacement is important.

The thermostat is considered a critical component in any HVAC system. It regulates temperature and ensures that the air conditioner turns on when needed. Because a functional thermostat is essential, it’s important to call on a professional who can help you repair yours when there is an issue. If your thermostat is broken or damaged, it can make your air conditioning system work incorrectly and cause frustration.

The most common sign of a problem with your thermostat is if it won’t turn on. This means that the power to the unit is cut, requiring a professional to diagnose and fix the problem. A malfunctioning thermostat can also indicate an issue with the wiring, and it’s important to have a licensed technician examine the unit to determine the source of the problem.

Another common indicator of a thermostat issue is if it won’t stay on the correct setting. It may start to cycle on and off frequently, and this can cause the compressor to overwork itself and lead to short cycling and high energy bills.

A malfunctioning thermostat can also be caused by dust or dirt on the mechanical and electrical components. This can prevent the unit from properly communicating with the AC, and it’s important to keep it clean. It’s a good idea to periodically use canned compressed air or a soft brush to clean the unit and the areas around it.

Lastly, the location of your thermostat can have an impact on its function. If it’s exposed to direct sunlight or other heat sources, it can be difficult for the thermostat to read the temperature accurately. Moving the unit to an area away from heat sources and other objects that could block it from receiving accurate readings is a good idea. This can help to prevent the thermostat from overworking itself, which can shorten its lifespan and lead to other problems.

Energy Efficient Water Heaters

Water Heaters Denver CO are a common household appliance that uses energy to produce hot water for washing dishes, laundry, and bathing. Most models are powered by electricity or gas.

Water Heaters

Electric units use less expensive, renewable energy sources, whereas gas uses fossil fuels. Both types require a vent to release waste products, but electric models don’t need a gas line.

If you are looking for a new water heater that can save you money and make your home more energy efficient, consider choosing one that has been rated to meet high energy efficiency standards. These standards are based on the First Hour Rating (FHR), which determines how much hot water is produced in the first hour of operation, and are a good measure of how much energy a specific model will use. The FHR ratings were recently changed to a Uniform Energy Factor (UEF) based on updated DOE testing procedures, which allows for more accurate comparisons of performance between water heaters.

In general, electric demand water heaters are more efficient than gas units because they use less electricity to heat the same amount of water. However, they require between 40 and 60 amps at 220 volts to operate, which can be beyond the wired capacity of many homes. Additionally, an electric water heater is susceptible to heat losses through the hot water pipes, which can account for a significant portion of the total energy used to produce a single unit of hot water.

Gas-fired units are rated to different energy efficiency levels depending on tank size. Look for models with sealed combustion or power venting, which separates combusting gases from house air and exhausts them outside through a two-pipe system. This eliminates the need for a standing pilot, which consumes energy and is not as effective as an electronic ignition.

Aside from being a cost-effective way to lower your utility bills, a highly efficient water heater can also reduce your carbon footprint and help the environment. Heating and cooling accounts for the largest part of household energy use, so reducing this consumption has a direct impact on both consumer costs and climate change.

The biggest impact comes from switching from standard electric resistance water heaters to advanced models that can use less energy. Electricity generation is terribly inefficient compared to natural gas, and the energy required to transport it to your home results in high utility bills and greenhouse emissions. In contrast, a gas demand water heater can significantly cut your energy bills and greenhouse gas emissions, while lowering your electricity usage by reducing peak demand. Smart electric water heaters that connect to home energy management systems can provide additional opportunities for demand response savings and automated efficiency optimization, helping to reduce your electricity bills even more.

Water Heater Size

While bigger is not always better when it comes to water heaters, selecting the right size is key for your household. An incorrect water heater can lead to insufficient hot water or wasted energy costs. To determine the appropriate size, you should consider how many people live in your home, their lifestyle habits and hot water usage needs. This includes things like shower duration and length, back-to-back showers and tub size. You should also think about laundry and dishwasher loads and when they are typically used.

When shopping for a new water heater, the first thing to consider is its First Hour Rating (FHR). The FHR specifies how much water a particular model can heat in one hour at full capacity and how quickly it can reheat. This is a good indicator of how much hot water your household will need during peak hours.

A good rule of thumb is to look for a tank water heater that has an FHR that exceeds the gallons of water that you will use during your household’s busiest hour. For example, a family of four with average shower durations and multiple simultaneous showers may need a 50 gallon water heater or greater.

The next thing to consider is your water heater’s temperature rise capability. Most tanks will have a temperature rise chart that you can consult to see how much hot water it can deliver for various temperature increases. If you know you will be using your water heater for dishes and washing clothes, it is best to select a tank that has a high temperature rise.

If you want to know how much hot water your existing unit holds, look for a sticker on the unit that lists its rated capacity in gallons. You can also find this information online by searching for the water heater model number or serial number.

If you decide to purchase a tankless water heater, the sizing process is different. You need to consider how many people are in your household, what their daily hot water demands are and what time of day is your peak demand hour. You should also look for a manufacturer-provided flow rate chart to help you estimate the amount of hot water your home will need at each temperature.

Installation Options

Water heaters are a big investment, so choose wisely. Whether you’re looking to replace an existing one or installing a water heater in new construction, select a contractor who has experience with your type of system. Check out contractors’ reputation, warranty coverage and service. Get estimates from several companies, and make sure you understand all the details of each option.

A tank-style heater may be more affordable than a demand model, but the ongoing costs will add up over time. Look for a system with an Energy Star rating for the best energy efficiency.

If you’re concerned about the environment, a gas or propane-powered tankless water heater can help. Although they can’t produce as much hot water per minute as a conventional storage tank, they do use less energy and provide a significant reduction in greenhouse gases.

An alternative to a whole-home water heater is a point of use (POU) water heater, which provides a small amount of hot water at each end-use sink. These are typically electrical, but there are also gas-powered POU options. The advantage of these systems is their proximity to the sink, allowing you to avoid long wait times for hot water.

Another way to reduce wait time is by installing an on-demand recirculation system. These systems install a loop and pump between the hot and cold water lines at each fixture. At the push of a button, a pump rapidly circulates hot water to the fixture, and room-temperature water is returned to the water heater. This eliminates the waste that happens when you run a faucet while waiting for hot water to arrive.

Most water heaters require venting, and you can opt for a direct-vent or power-vent model. A direct-vent water heater pulls air from outside, vents through a vertical pipe and then outdoors, while a power-vent system draws cool indoor air and uses a fan to push exhaust out through a horizontal pipe.

Most home improvement centers offer a wide range of water heaters, and they can usually help you determine what type is right for your home. However, when it comes to installation, a licensed plumber is the best choice. He or she has the skills to work safely with your water pipes and gas line, and to install a high-efficiency system that will save you money in the long run.


Purchasing a new water heater is a big investment. A good warranty can help ease the financial burden in case of a failure or repairs. Many manufacturers and home warranty companies offer warranties on their products. Homeowners should carefully evaluate the terms and conditions of these warranties to ensure they are suitable for their needs.

Some warranties only cover specific parts and components of a water heater, while others may cover the entire unit. For example, a gas burner failure in a tank-type water heater would be covered by the manufacturer’s warranty, but an expansion tank or venting upgrade would not be. Some warranties also limit who can perform repairs or replace the product if it’s damaged. For instance, a plumber who doesn’t have the proper license to service a particular manufacturer may void the warranty on that product.

A home warranty company offers a more comprehensive plan that typically covers all aspects of the water heater, including the plumbing system and any other appliances or systems affected by its malfunction or breakdown. These warranties can be more affordable than manufacturer’s warranties and often have flexible service agreements that allow homeowners to choose their preferred technicians. The best home warranty providers will make their contracts clear and easy to understand, using language that doesn’t hide important information in legalese.

While a warranty can be a useful tool in the event of a water heater failure, it’s not an effective replacement for routine maintenance. Keeping up with routine maintenance and making timely repairs can help extend the life of the water heater and save homeowners from high repair costs.

A water heater is a major appliance that’s often overlooked until it stops working. Homeowners should review the different options available to them and evaluate the pros and cons of each before selecting a model that fits their family’s needs. Choosing a quality brand and installing it properly will help to ensure the appliance lasts as long as possible. It’s also important to assess the potential out-of-pocket costs of repairs or replacements not covered by the warranty to help budget accordingly.