Denver HVAC Repair

Every Trane system is tested in some of the most extreme conditions found in nature to ensure they’re truly unstoppable – like freezing conditions in our System Extreme Environmental Test (SEET) lab. That’s where engineers put units through five years of wear and tear in just a few months, to get a product you can count on to run through anything. We never settle, so they never stop.

We service, repair and install most every type of hvac system whether it’s gas, electric or oil, on hvac systems (furnaces, heatpumps air conditioning untis and boilers) by Trane, Bryant, York, Goodman, Lennox, Rheem, Panasonic, Fujitsu and many more.  Our service area is mainly around the I-97 to Rout 32 corridor specifically Annapolis, Crownsville, Severna Park, Millersville, Gambrills, Crofton, Odenton, Severn, Fort Meade, Jessup, Elkridge through Columbia, MD.
Additionally, new technology and government requirements are pushing manufacturers to build more energy efficient HVAC equipment. January 2006 we observed the end of 10 SEER units with 13 SEER air conditioning units mandated by the government. This only makes sense; however, with the higher efficiency, there comes complexity in the technology engineered into the equipment. A problem can be difficult to troubleshoot and diagnose and may require more time than the lower efficiency, less complex units.
At Miller's Air Conditioning & Heating we take pride in being a high-quality HVAC Company serving the Tri-Valley area. We have been Livermore’s #1 choice for HVAC repair and service since 1960, so you can trust that we know how to get the job done right the first time. We’re a family-owned business that puts each of our customers needs ahead of our own, so if you need comprehensive furnace; air conditioning, or general HVAC services, give us a call at (925) 583-6387 today and we’ll take care of the job!
If your AC doesn’t turn off when room temperature reaches the temperature set on the thermostat, the problem is generally occurring either at the thermostat or in the electrical system that runs the outside condensing unit. You can use the AC’s circuit breaker to shut off the unit, but that should not be a permanent solution—circuit breakers are not designed to be used like light switches.
In very dry climates, evaporative coolers, sometimes referred to as swamp coolers or desert coolers, are popular for improving coolness during hot weather. An evaporative cooler is a device that draws outside air through a wet pad, such as a large sponge soaked with water. The sensible heat of the incoming air, as measured by a dry bulb thermometer, is reduced. The temperature of the incoming air is reduced, but it is also more humid, so the total heat (sensible heat plus latent heat) is unchanged. Some of the sensible heat of the entering air is converted to latent heat by the evaporation of water in the wet cooler pads. If the entering air is dry enough, the results can be quite substantial.
To clean your air conditioner drain, first shut off the power to your unit at both the thermostat and the breaker. Then remove the drain pan. If the pan is full of water, soak up the liquid with a few towels or rags or use a wet vacuum. You can use a solution of water and distilled vinegar, or substitute peroxide for the vinegar, to clean out the drain pipe. Let the pipe sit for a while in the solution and then put all the parts back in place. Once you start using your air conditioner on a regular basis, check it periodically to ensure condensation isn't building up.
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If you live in a warmer climate, your AC is likely one of the most essential pieces of equipment for your home. The best course is to perform regular routine air conditioner maintenance to ensure its smooth operation during the warmest months of the year. Annual tune-ups by a professional HVAC technician will increase the lifespan of your unit. When repairs are needed, be sure to hire a technician trained and certified in HVAC repair for best results. Following these guidelines will ensure that you are comfortable and cool through the summer season.

In hot weather, air conditioning can prevent heat stroke, dehydration from excessive sweating and other problems related to hyperthermia. Heat waves are the most lethal type of weather phenomenon in developed countries. Air conditioning (including filtration, humidification, cooling and disinfection) can be used to provide a clean, safe, hypoallergenic atmosphere in hospital operating rooms and other environments where proper atmosphere is critical to patient safety and well-being. It is sometimes recommended for home use by people with allergies.
Stay away front his company!!! In 2008 I had the company send Rick a technician to do warranty work on my new house. I complained about my house being hot in the summer. Tech said that I had a delta t of 14 degrees (the difference of temp coming into the return and out the supply) and that system was functioning properly. Unfortunately I took their word. After 8 years of being hot I called a reputable company to come and check my system again. The HVAC system still operating with a delta t of 14 degrees. The new company looked at my HVAC system owner manual. They calculated my dry bulb temp and wet bulb temp and used the chart in the owners manual to determine that the system wasn't functioning properly. After the new company came a put two pounds of freon into my HVAC system I now have a 20 degree Delta t. Do not do business with this company not trust worthy!

Our team’s knowledge covers a variety of manufacturers, types of systems, local building codes, and best practices. Each technician goes through 200-plus hours of continuing education and training every year, including weekly training sessions. Whether your HVAC system is complex or small, old or brand new, or located in your basement or garage, our repair technicians can handle it.
Circulating refrigerant vapor enters the compressor, where its pressure and temperature are increased. The hot, compressed refrigerant vapor is now at a temperature and pressure at which it can be condensed and is routed through a condenser. Here it is cooled by air flowing across the condenser coils and condensed into a liquid. Thus, the circulating refrigerant removes heat from the system and the heat is carried away by the air. The removal of this heat can be greatly augmented by pouring water over the condenser coils, making it much cooler when it hits the expansion valve.
Ventilation, air conditioning and heating systems require regular maintenance for them to work efficiently. You’ll likely need tune-ups and repairs for them at some point during their lifespan. However, no matter how much preventative maintenance you put into your HVAC system, there comes a time when repairs aren’t enough anymore and it’s time for a replacement.
Many HVAC maintenance companies offer annual servicing contracts for preventative maintenance. Such contracts cost anywhere from $100-$150 per year, and cover annual visits in which standard maintenance tasks are performed. Some companies will allow you to make monthly payments for your maintenance contract, and will provide you with discounts around 15% if you hire them when you need your unit repaired.
The heat-exchanger cools the air that is being forced through it by the furnace blower. As the warm air comes in contact with this cool surface the water in the air condenses. By pulling the water molecules from the air. According to the psychometric chart[42] as relative humidity decreases in order to feel cool you will have to lower the temperature even more. A common way to counteract this effect is by installing a whole-home humidifier.[43] Similarly, installing a high efficient system this need to turn the temperature down wont have such and influence on your energy costs.

If your AC doesn’t turn off when room temperature reaches the temperature set on the thermostat, the problem is generally occurring either at the thermostat or in the electrical system that runs the outside condensing unit. You can use the AC’s circuit breaker to shut off the unit, but that should not be a permanent solution—circuit breakers are not designed to be used like light switches.
Natural ventilation is the ventilation of a building with outside air without using fans or other mechanical systems. It can be via operable windows, louvers, or trickle vents when spaces are small and the architecture permits. In more complex schemes, warm air is allowed to rise and flow out high building openings to the outside (stack effect), causing cool outside air to be drawn into low building openings. Natural ventilation schemes can use very little energy, but care must be taken to ensure comfort. In warm or humid climates, maintaining thermal comfort solely via natural ventilation might not be possible. Air conditioning systems are used, either as backups or supplements. Air-side economizers also use outside air to condition spaces, but do so using fans, ducts, dampers, and control systems to introduce and distribute cool outdoor air when appropriate.

Got to say that I am very pleased with their work. The knowledge of the technician was on the spot. She was very professional at all times sharing her expertise and advice with me. Going further, I have hired some other pro's from this website to fix my AC and none them identified a faulty connection on the AC blower control board as my technician from Superior AC did. The price for the repair was fair, no overpricing at all. I am pretty sure that I will call them again and definitively recommend them. Thanks!! Aurelio


Each spring and fall before you start using your air conditioner, furnace, or other heating and cooling systems, you should get a tune-up to ensure your HVAC system is ready for the season. By spending a little twice a year, you can save a lot in energy bills by keeping your system operating at peak efficiency. You also can avoid costly repairs by identifying and fixing minor problems before they turn into big ones. Plus, many homeowners don't realize that their manufacturer's warranties may be considered invalid if they aren't getting their unit serviced twice a year.
Air conditioners improperly installed will develop air duct leaks and low air flow. Your air conditioner looses its cooling power in hot weather. A lack of maintenance will cause your air conditioner to malfunction. Refrigerant charges and compressors are some of the parts needing regular maintenance. Regular maintenance increases the lifespan and production of your air conditioner.
This company was highly recommended to us by our realtor. Corey came out to do some work for us and he was really professional. He was on time, and explained everything he was doing and gave a quote (it actually ended up being cheaper!) before he started. He also looked at other stuff for us, and we got the feeling he was being honest and not pushy with his recommendations. We've already booked another appointment to fix some other things, and we requested Corey to do it.
Mitsubishi Electric is a world leader in air conditioning systems for residential, commercial and industrial use. Challenged to create air conditioning systems that provide exemplary performance in the wide-ranging climatic conditions found throughout Japan, our engineers develop amazingly sophisticated yet durable units and systems capable of constant use under virtually any natural climatic condition on earth.

Need Air Conditioner Repair or Furnace Repair? Look no further. The HVAC experts at Allatoona Heating and Air are here to help you today. We have the training and experience necessary to handle all sorts of heating and air conditioning issues for all brands of heating and air equipment. We’re not limited to repairs either. Our HVAC technicians can help you with repairs, service, maintenance, replacement or installation of heating and air conditioning equipment for your home or office. Call us today!
It’s a rare occasion for a problem to arise with your heating or cooling equipment at a convenient time. In fact, we’re not even certain such a time exists! That’s why the team at HVAC Unlimited stands ready to provide complete emergency heating and cooling repairs. No matter the time of day or the day itself, we can be on the way and ready to provide prompt, cost-efficient services to our Alexandria clients.
If your AC doesn’t turn off when room temperature reaches the temperature set on the thermostat, the problem is generally occurring either at the thermostat or in the electrical system that runs the outside condensing unit. You can use the AC’s circuit breaker to shut off the unit, but that should not be a permanent solution—circuit breakers are not designed to be used like light switches.
Every Trane is tested to withstand the harshest conditions nature or our engineers can throw at it – like freezing conditions in our System Extreme Environmental Test (SEET) lab or five-inches of water an hour in our Climate Chamber. That's how we get heating and cooling systems you can count on to run through anything. And when it's time for a tune-up, our dealers and certified Trane Comfort Specialists™ are always at your service right when you need them. It's that kind of reliability that's earned us the positions of America's Most Trusted HVAC System*.

Free cooling systems can have very high efficiencies, and are sometimes combined with seasonal thermal energy storage so that the cold of winter can be used for summer air conditioning. Common storage mediums are deep aquifers or a natural underground rock mass accessed via a cluster of small-diameter, heat-exchanger-equipped boreholes. Some systems with small storages are hybrids, using free cooling early in the cooling season, and later employing a heat pump to chill the circulation coming from the storage. The heat pump is added-in because the storage acts as a heat sink when the system is in cooling (as opposed to charging) mode, causing the temperature to gradually increase during the cooling season.

At Sky Heating & Air Conditioning, we understand that HVAC services can really hurt your budget. Many times, you don’t expect to make such large purchases until an emergency arises. We never want you to feel that you cannot afford your comfort and safety. We offer flexible financing options through the Home Project credit card from Wells Fargo, with approved credit. Head over to our financing page to apply, or give us a call for more information!


We offer maintenance and tune-ups for all brands of central heating and air conditioning equipment. Systems serviced include central air conditioners, furnaces, heat pumps, and air quality systems such as whole-home humidifiers, dehumidifiers, and air cleaners. Tune-up service is also available for oil furnaces, ductless mini splits and boilers in many markets.
Before you service an air conditioner, make sure the unit is turned completely off by unplugging or shutting off the circuit breaker. Then, rake off any debris from the unit and use a soft brush to remove dirt from the outside cover. If the small copper pipe connecting the unit to the house feels hot, the unit’s coils likely needs to be washed. Remove the outside cover, cover the motor and wiring with a plastic sheet, and hose down the fins, coils, and inside of the unit. Finally, replace the cover when you’re done.
If you hear clicking that is followed by a hum or buzz, you’re probably hearing the fan motor attempting to start without the boost it needs from the capacitor. You can almost always conclude that the capacitor has failed. Sometimes you can get the compressor fan spinning (clockwise) by pushing it with a thin stick or long screwdriver poked through the grille. But the chances are good that this might work for one cycle, but the capacitor will fail next time the AC goes on. It’s best to replace the capacitor.
We moved into a new home and had issues with the heating ducts in one of the rooms. We called HVAC based on other yelp reviews. Overall, everyone we dealt with were friendly, professional and knowledgeable: From the people on the phone managing the schedule to the those performing the work in our house. The day before the scheduled work we asked if additional work could be done (clothes dryer duct cleaning), which they were able to accommodate. The people working at the house were on time, very polite, took great care to keep the house clean during the entire job and explained everything when they were finished. I will certainly use HVAC again.
At Reliable Comfort Heating & Air Conditioning, we combine skilled workmanship with dedicated customer service to earn your complete satisfaction.  Whether you are in need of new HVAC installation, replacement, maintenance, repair, air quality solutions, or duct sealing, we draw from extensive hands-on experience, quality products, and advanced training to maximize value and rewards.
If your air conditioner’s condenser coils, which are located in the outdoor unit, freeze up, your system will not run properly. Poor airflow through your cooling system can cause ice to form on the coils. Obstructions are typically the cause – such as dirty air filters or blocked return air ducts. Low refrigerant could also be the cause, requiring a refrigerant charge. A home AC repair technician can diagnose the issue behind your frozen coils, resolve it, and safely thaw your coils to restore cooling in your home.”
Your air conditioner’s outside unit is home to the compressor, fan, and condenser coils. These components work to release heat from the air, transferring it out of your home to produce a cool indoor climate. When the outdoor fan isn’t working correctly, the heat transfer process is hindered. Not only will this prevent your air conditioner from adequately cooling your home, a broken fan can cause the system’s compressor to overheat. An overheated compressor could trigger the air conditioner’s safety controls, turning your air conditioner off; overheating can also cause damage to the compressor itself, requiring home AC repair or compressor replacement.
Be cautious with companies that offer “whole house air duct cleaning,” urges the NADCA. The company may be using unscrupulous tactics to upsell you once they get started. Before any work begins, always clarify in writing what the job entails and what the cost will be. To protect yourself against fraud, read customer reviews and verify that your HVAC cleaning service has applicable licenses and certifications.
I originally took off one star because of the SNAFU with getting the part ordered. When Alberto called me on the phone he admitted the person had "gotten busy with other things" and apologized. THAT was taking the high road and I was impressed by that. Sadly, for reasons I won't guess at, Alberto has decided to take the low road in his comments and imply that they got the part as quickly as possible. Well, we called at 2:30 so did someone spend six and a half hours finding the part?? That seems very doubtful. As for the price I think my review was fair in stating what value we got for what I deemed to be a slightly higher price than others might charge. I did not take any stars off for the price, and still am not, but I am taking another star off because of Alberto's comments, which are deceptive and not the same thing he told me in person. Alberto, I suggest you stick with the high road in the future.

Wow! These guys rock! I had issues with our fireplace for a while and the last company who "fixed" the issue basically charged me a lot of money and literally left me standing in the cold. Next they said it would cost me over $700 to fix the whole thing and they never came back. Finally I was able to find some good guys to fix the issue. Tony and Paul from HVAC were not only really friendly, they diagnosed the issue really fast and fixed it the same day. And it was 7 times less than what the other company asked for!!! Next time I know who to call! 5 Stars!


It doesn’t matter the time, our experts will have your home back to complete comfort swiftly. We back our workmanship so much so that we guarantee it in writing for one full year. Our 100% Satisfaction Guarantee* firmly demonstrates our dedication to providing the best heating system service in the industry. Repairing, selling and installing heating systems is something we do every day. More people count on us for their home comfort, so you can be certain your home will be back to being warm and cozy in no time.
Here’s a simple test to try on your own: When it’s hotter than 80 degrees outside, turn on your AC unit, and set it to well below room temperature. Let it run for 15 minutes, then use a thermometer to check just outside the return duct (the area where air flows in to be cooled). Now take a temperature reading just outside the strongest, most easily accessible vent (where cool air should be flowing out). Subtract the second reading from the first. If the difference between these two is fewer than 14 degrees, your HVAC unit might need work. 
As for the price I think my review was fair in stating what value we got for what I deemed to be a slightly higher price than others might charge.  I did not take any stars off for the price, and still am not, but I am taking another star off because of Alberto's comments, which are deceptive and not the same thing he told me in person.  Alberto, I suggest you stick with the high road in the future.
Protect your investment with HVAC services designed to create comfortable, energy efficient environments. National HVAC Service mechanical services safeguard against downtime and premature equipment failure while keeping facilities safe and comfortable. Our experienced HVAC technicians play a vital role in the daily operations of facility productivity and efficiency.
So HVAC sent Tony Diaz to my house. I was at work so he was subjected to the most excruciatingly exacting woman on the planet (my wife). Tony impressed her with his friendliness, professionalism and the obvious jouneyman-level knowledge of his craft. He found literally --burnt-out-- parts in our system and replaced them. It cost us a bit but I know enough about the parts to see there was no gouging on the parts and a fair rate for the labor. It wasn't cheap but it was fair and worth every dime.

It costs approximately $35,000.00 to properly stock an HVAC air conditioning and heating service van (not mentioning the cost of the van itself), office overhead including marketing, phone, fax, business licenses, professional licenses, insurance, advertising, marketing, and did I mention advertising and marketing, Employee costs including payroll, insurance (out of control), benefits, etc…………, and ongoing training and HVAC educational requirements to remain knowledgeable, competitive, and to retain HVAC professional licenses.

Central, "all-air" air-conditioning systems (or package systems) with a combined outdoor condenser/evaporator unit are often installed in North American residences, offices, and public buildings, but are difficult to retrofit (install in a building that was not designed to receive it) because of the bulky air ducts required. (Minisplit ductless systems are used in these situations.) Outside of North America, packaged systems are only used in limited applications involving large indoor space such as stadiums, theatres or exhibition halls.

I have no idea what a barrel is??? In chilled water systems the evaporator and condensers sometimes use what is called a chiller barrel for the evaporator and/or the condenser but for most residential system it is a rarity to find a chilled water system installed. Are you talking about a commercial system chiller. 7.1 KW is not a very big system but they do exist in light commercial and as mentioned in residential.
AC units and thermostats have built-in delay features when they’re shut down and then repowered. The delay can be as long as 10 minutes. And, if you’ve subscribed to an energy-saving device from your local power utility, the unit can take even longer to reset. If you’ve installed the parts shown and reinstalled the disconnect block, repowered the circuit breaker, turned on the switch at the furnace, moved the thermostat to AC mode and lowered the temperature below the indoor temperature, and the unit doesn’t fire up after 30 minutes, it’s time to call a pro.
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