Tag: HVAC companies

Water Heater Repair: Common Thermostat Problems

Denver Water Heater Repair is an insulated tank that holds hot water until needed. It heats the water through a gas flame below or electric elements suspended inside. It has a thermostat to control the temperature and a pressure relief valve.

Leaks around the tank are a big problem and should only be repaired by professional plumbers. The homeowner can fix other issues.

The thermostat is a small piece of equipment that enormously impacts your home’s comfort. But it’s not indestructible and can sometimes fall victim to malfunction. Some common thermostat problems include:

No hot water: If your heater cannot produce hot water, it may be due to a malfunctioning upper or lower heating element. You can check both by turning off your water, removing the access panel, and checking for signs of damage or corrosion on each one. If you find either, contact a professional immediately.

Lukewarm water: The cause of this problem may be a faulty dip tube, which transfers cool water from the top of your tank to the bottom so the lower heating element can reheat it. If the dip tube is damaged, it may not transfer this water properly, and your tank will overheat.

Water leaking from the bottom of the tank: If you’re experiencing a leaking water heater, don’t delay; it could result in a costly tank split. The best way to deal with this issue is to call a plumber, who will drain the tank and relieve pressure by using a plastic relief valve drain pipe.

If the leaking stops, you should be able to resume normal operation. If not, the leaking is most likely caused by a defective gas control valve or thermocouple. Both of these parts are expensive and require a professional to replace.

The thermostat is not turning on: If your thermostat is not turning on, it’s most likely because it’s programmed for the wrong type of equipment, running a pre-selected temperature schedule, or needs reset. Consult your manufacturer’s safety manual for detailed instructions on resetting and re-configuring the device to function correctly.

A toolset that includes a screwdriver set, a multimeter, wire strippers, needle-nose pliers, and insulated wire nuts is necessary for repairing a thermostat. Screwdrivers allow you to remove the thermostat cover, while a multimeter provides diagnostic measurements of voltage, resistance, and continuity. Wire strippers help you safely remove the outer layer of wire sheathing, while needle-nose pliers can manipulate small, delicate connections. Insulated wire nuts provide secure and safe connections by offering built-in insulation to protect against electrical shorts.

As the water in your home heats up, it expands. This expansion causes the tank to build up pressure. This pressure can cause the water heater to burst and flood your home if it is not properly vented or equipped with a safety valve.

This is where the water heater pressure relief valve comes in. This safety valve monitors the temperature and pressure inside the tank; if it gets too high, the valve will open. Water will squirt out of the valve to relieve the excess pressure and lower the temperatures inside the tank.

The pressure relief valve has a main body, bonnet, and spring. The main body is usually made from brass, aluminum, or stainless steel, depending on the operating environment and the fluid being handled. The valve body contains passages that allow fluid or gas to flow through the inner seal and into a control chamber. The control chamber is located in the center of the valve and contains a spring. The spring is compressed when the internal pressure rises above the set point. The spring force lifts a disc and opens the valve. As the disc is lifted, the pressure inside the system or vessel drops and closes the valve.

Various flanges and threaded connections are available for mounting the valve on the vessel or line. It is important to clean the flange faces or threaded connections on the valve inlet and the ship or line on which the valve is mounted before installation to ensure proper sealing.

The main problems that can occur with pressure-reducing valves are leaks, clogs, and incorrect pressure settings. Testing and maintaining your water heater regularly is important to avoid these issues. Water heater flushes can also help to keep your valve working correctly. If your pressure relief valve is not working properly, contact your local Bermad technical specialist to learn more about repair options.

The dip tube is a crucial component of your water heater. If it breaks or erodes, you’ll experience problems with the tank’s operation, including inconsistent water temperatures and low hot-water pressure at your faucets and shower heads. The good news is it’s easy to replace a dip tube.

Begin by shutting off power to the heater, either at the circuit breaker for an electric heater or the gas control dial on a gas water heater. Next, turn off the cold water inlet valve on the top of the tank. Then drain the tank. This will flush out any plastic flecks broken off in the tube.

Most modern water heaters use non-metallic (or plastic) dip tubes that withstand corrosion and do not accelerate the rusting of the steel tank. Those tubes are also easier to clean and maintain than the metallic ones that were used in older tanks.

To replace a dip tube, remove the pipe nipple and connector. Locate the nipple at the top right side of your water heater. It will stick up a little and have a short pipe threaded on both ends. Screw off the nipple and the connector with a wrench, then pull out the old tube. If you can’t remove the tube with your hand, insert a screwdriver into the end of the tube and bend it to loosen it.

If you want to purchase a new dip tube, look for one made of durable cross-linked polyethylene (PEX) that will not dissolve. It is available at most hardware and home improvement stores. Before installing it, cut the tube to the proper length. The manufacturer will tell you how to do this, but in general, it is best to align the tube so that it reaches down inside the water tank but is off the bottom.

Once the new dip tube is in place, reattach the cold-water inlet valve and restore power to your heater. Then, test to see if the water temperature in your home is consistent. If it is, the problem was probably caused by a malfunctioning thermostat or another issue.

When water expands while heating, it puts pressure on the pipes connected to the water heater. The pressure relief valve regulates this pressure. When the pressure gets too high, it triggers the valve to open and vent fluid or steam into the system. This relieves pressure and reduces the amount of pressure on other components, such as the hot water tank. When the valve has been activated, it should return to its normal closed position and shut off flow.

A faulty or stuck pressure-relief valve can cause leaky pipes, leading to costly water damage. Testing the valve periodically and flushing it at least once a year is a good idea.

The pressure-relief valve is a direct-acting device, meaning that the pressure acting directly on the internal components causes the valve to open or close. This valve is normally closed and holds the internal components in a position that creates a seal to prevent flow. When pressure increases to a preset limit, the force of the pressure overtakes the spring force and forces the valve open. The valve opens to allow fluid or gas to vent into another section of the system or the environment.

Once the pressure drops below the set point, the spring force again overtakes the hydraulic force and closes the valve. This process is referred to as blowdown, and it is an adjustment that can be calibrated within a specified range.

Some types of valves have an adjustment screw that can be tightened or loosened to change the pressure-reduction setting. The adjusting screw changes the amount of force that the spring exerts on the diaphragm, which in turn decreases or increases the pressure on downstream pipes and fixtures.

Before installing the valve, make sure that the flange faces or threaded connections at both the inlet and outlet sides of the valve are clean and free of any rust or mineral deposits. This will ensure a proper and accurate connection that can withstand reactive thrusts caused by the valve opening or closing. It is also a good idea to install the valve in a position that is as close as possible to the vessel and line it is protecting.

Why HVAC Maintenance Is Important

An HVAC system’s lifespan can be extended with routine maintenance. The equipment’s performance can also be improved.

Hubbard Mechanical will inspect ductwork for leaks and clean critical components like coils, fans, and blowers. He will also check that carbon monoxide detectors work and test for loose or faulty electrical connections.


An HVAC system is one of the biggest investments a homeowner will make in their lifetime, so it’s important to keep it running as efficiently as possible. This includes scheduling regular maintenance to prevent problems from arising in the first place, rather than reacting to a breakdown after it happens. In addition to reducing energy costs, scheduled maintenance can extend the lifespan of your equipment by up to 40% and save you from unexpected repair bills.

There are many factors that impact the cost of hvac maintenance, including how frequently you need service, your location, and the type of system. For example, ductless systems are typically less expensive to maintain than a traditional split or packaged unit. In addition, routine maintenance is typically less expensive than a repair call because it addresses potential issues before they become more serious.

Most reputable HVAC companies recommend having your system checked twice a year. This is especially important if you live in a cold climate, as the system will be more likely to break down during the winter. Additionally, older units may need to be checked more often than newer ones.

Routine maintenance usually consists of cleaning and checking all of the major components of your system. This can include things like replacing filters, lubricating moving parts, and inspecting electrical connections. In addition to this, technicians will also clean outdoor evaporator and condenser coils, check the refrigerant level, and look for leaks or obstructions.

A good rule of thumb is that you can expect to pay between $75 and $200 for a routine maintenance visit. If you are in need of a more extensive repair job, you will likely pay more than this.

You should always read your service contract carefully before signing it to understand what services are covered and how often they’ll be conducted. Some companies charge a monthly service fee, while others may have an annual contract.

In addition, you should be aware that the price of HVAC maintenance can vary depending on the season. During the summer and winter, labor rates are typically higher than during the rest of the year. This is due to a higher demand for services. If you can schedule your HVAC maintenance visits during the off-season, you’ll be able to save money on labor costs.

In addition to keeping your system working at its best, HVAC maintenance keeps it efficient as well. A well-maintained system won’t have to work as hard for the same results, so it will consume less energy and save you money on your utility bills.

A professional technician will clean the interior and exterior of your unit, lubricate moving parts, check refrigerant levels and more. Having the system cleaned and checked can prevent the growth of mold, bacteria, fungus and other harmful microorganisms that may cause health issues for your family.

Dirty filters, duct leaks and other issues can make your HVAC system work harder to produce the same results, leading to higher electricity costs over time. Routine maintenance can catch these issues before they become major problems and keep your system running efficiently for a longer period of time.

Many HVAC companies offer a variety of maintenance packages, with the frequency of service varying depending on where you live and the type of system you have. Typically, semi-annual services are recommended in areas with harsh climate conditions and older systems, while annual maintenance is suitable for homeowners who have newer units.

Some tasks, such as adjusting the thermostat and cleaning the electric panel, can be done by the homeowner. However, for more complex tasks, such as examining and replacing the air filter, an experienced and trained technician is required. Doing DIY maintenance on your HVAC system can be dangerous, and it can also void your warranty. Moreover, DIY maintenance can lead to costly repairs or even system failure, which can be more expensive than a regularly scheduled maintenance visit.

Regular HVAC maintenance can extend the lifespan of your unit by as much as 30%, and it can greatly reduce your energy costs. Without it, your system will have to work overtime, which can dramatically increase your energy bills. If you aren’t sure how often to have your system maintained, 

A warranty can save you money on repairs in the long run. However, it is important to understand the different types of warranties available and how they can affect your budget. For example, a manufacturer warranty will only cover certain parts of the system. A home warranty provider will offer more comprehensive protection, including repair and replacement costs. However, it is important to note that these providers typically have preferred service technicians and may require you to use them first. If you choose to purchase a home warranty, make sure you read the contract carefully before signing it.

If you have a warranty on your HVAC system, make sure it has a specific start date and end date. Also, check the manufacturer’s list of excluded parts and equipment, as well as the terms and conditions for submitting a claim. In addition to the manufacturer’s part warranty, you should also look for a labor warranty. The labor warranty will cover the cost of service call charges and repairs for a certain number of years.

In order to keep your warranty valid, it is important to follow a schedule of routine maintenance for your heating and cooling system. This will prevent any breakdowns and extend the life of your equipment. Maintenance can also help you save on your energy bills by identifying problems and correcting them before they become serious issues.

Another important aspect of a warranty is to choose replacement parts that are made by the same manufacturer as your original components. Choosing non-original parts can void your warranty and lead to costly repairs down the road. It is important to save all paperwork and receipts after maintenance, repair, and installation to keep your records in case you ever need to file a claim.

Homeowners insurance does not cover mechanical failures that result from normal wear and tear, so you may want to consider purchasing a home warranty plan. This will cover the cost of repairing or replacing your HVAC system when it breaks down. Many homeowners find this option is much more manageable than paying for unplanned repair and replacement costs.

If your HVAC system has a problem, you’ll probably need to have repairs done. The good news is that maintenance will prevent these problems from happening in the first place, so you won’t have to spend as much money on repairs. If you do need to have a repair made, make sure to get a quote before hiring anyone. Look for a company that has experience with your type of system, and ask about their warranty. Warranties and insurances will protect you from paying out of pocket for costly repairs in the future.

Preventive maintenance includes regularly changing your air filters and cleaning the condenser and evaporator coils. These tasks ensure proper air flow and allow the equipment to work as it’s designed to. This will help your system last longer, and also save you energy costs.

Having your system regularly maintained will also reduce the amount of dust and mold that builds up inside the unit, which improves indoor air quality for property occupants. This is especially helpful for occupants with breathing issues, such as asthma.

In addition, a well-maintained system will operate at a higher efficiency, which means you’ll use less electricity to keep your home comfortable. Neglecting maintenance will cause your system to work harder for the same results, which can add up to a significant increase in your electricity bill over time.

Some HVAC service companies offer a bundle of maintenance services for a flat rate, which may be more affordable than paying for each service separately. The cost of the bundle will vary by company, but it’s important to find one that offers a warranty and labor guarantee.

A reputable maintenance company will provide you with a detailed, written report of the inspection and maintenance performed on your equipment. This will allow you to understand exactly what services your HVAC system needs. In addition, the report will include a list of recommended repairs, along with their estimated costs. If you have any questions about the report, don’t hesitate to contact the technician for clarification. You can also ask for a copy of the warranty, which should cover any parts or labor needed to fix the problem.