Excalibur Mechanical Repair Services

In the middle of summer, especially in the Phoenix, AZ area, a broken air conditioner can be an emergency. When it comes to your comfort, it’s never a good idea to procrastinate on servicing your heating or cooling services. For those especially difficult fixes, our state-of-the-art diagnostic tools help our technicians locate and fix problems. No matter what type of system you have, we can help with repairs. Here are some common heating and cooling systems in the Phoenix and Peoria areas, common troubles and how Excalibur helps with repair services.

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Common Issues with Air Conditioners in the Greater Phoenix Area

According to the Department of Energy, “If your air conditioner is low on refrigerant, either it was undercharged at installation or it leaks. If it leaks, simply adding refrigerant is not a solution. A trained technician should fix any leak, test the repair, and then charge the system with the correct amount of refrigerant. Remember that the performance and efficiency of your air conditioner is greatest when the refrigerant charge exactly matches the manufacturer’s specification, and is neither undercharged nor overcharged. Refrigerant leaks can also be harmful to the environment.”

Lack of maintenance can cause a lot of issues. If the unit is not cleaned out properly, coils can become dirty and damage fans.

When a unit turns on and off frequently, electrical components can become overworked and fail.  Corrosion of wire and terminals is also a problem in many systems, so electrical connections and contacts should be checked during a service call with cooling experts like Excalibur.

During Excalibur’s house calls, we always check drainage pipes for clogs. Condensate drains need to be kept clear to ensure that water doesn’t pool, causing damage to your home or business.

Room air conditioners have a thermostat sensor that is often located behind the control panel. The thermostat measures the temperature of air moving into the evaporative coil. If the sensor is moved out of position, the air conditioner could cycle too often or behave erratically. The sensor should be placed be near the coil but not touching it.

Heat Pumps: What Kinds of Problems Does Excalibur Encounter?

Heat pumps may fail to turn on due to a couple issues. First, the electricity running to the unit may be broken or malfunctioning. Second, the thermostat on the unit may be malfunctioning. Excalibur will start by checking electrical panels and connections. We will also check the outlet that the heat pump is connected into because a breaker may have tripped.he environment.”

If ducts become blocked, inadequate heat will be produced. The same is true if air filters become dust or dirty. Excalibur’s certified team can teach you how to check for dirty filters and replace them.

The efficiency of your heat pump depends on the amount of refrigerant charge. Low levels can limit cool air output or cause it to fail. Adding refrigerant does require an experienced professional trained in its proper handling due to EPA rules. Excalibur’s certified professionals are all trained to safely handle chemicals such as refrigerant.

Often, blocked coils can cause a heat pump to freeze over and prevent air from flowing over them properly. This can then lead to moisture and condensation to collect around the coils. In colder weather, this can cause the water to freeze, blocking the coils. Heat pumps require space to properly gather air from the environment.

Propane & Gas Furnace Issues in Phoenix Area Homes

A broken thermostat means there is nothing telling the furnace to turn on or off. It may also mean there just isn’t energy getting to the thermostat. Excalibur’s team will come in and make sure all electrical functions are normal before suggesting a thermostat replacement.

If there is an issue with the pilot or ignition, fans may not be blowing hot air. It may be a problem as simple as a pilot light being out, or it may be a more complex ignition starter issue. Either way, our team is ready to repair and replace any parts needed to get your furnace back in working order.

A gas furnace is designed to cycle on and off over the course of the day. The system works this way until the desired temperature is reached. However, frequent on-off action means a problem with some part the system. First, our technicians will check the thermostat, belt and blower motor. If it’s a thermostat problem, it can usually be repaired through minor adjustments. Worn out belts will be replaced. Malfunctioning belts will have their tension adjusted if it is too tight or too loose. Blower motor ports will be lubricated if necessary. If they become dry, it will affect blower efficiency which in turn causes furnace on-off cycling. A dirty air filter can also cause frequent on-off cycling.

Furnaces are already loud pieces of equipment, but if it’s making a different or excessive amount of sound, it’s time to call Excalibur. A rumbling sound may signal that the pilot light is not set properly. Rumbling may also be mean a gas burner has gotten dirty and needs adjusting. A dirty gas burner should be cleaned or replaced regularly. If it’s a belt or motor issue, you may hear a high-pitched noise. Our technicians will adjust belt settings to the correct tension or replace frayed, old belts to improve efficiency.  Lastly, we’ll lubricate blower motor ports to ensure noiseless operation.

Typical Service Calls in Metro Phoenix for Heat Pumps

If the furnace won’t turn on at all, there could be a variety of reasons for this. First, Excalibur will check the fuses to make sure it’s not due to a blown or tripped fuse. This will cause the furnace to not power on. We’ll start by checking the main circuit breaker, entrance panels, and any fuses or circuits found in the heater itself. If this isn’t the problem, we will reset the power by switching the heater off for about a minute. Switch it back on may correct the problem. It’s also possible that the furnace motor can become overloaded. To remedy this, we’ll again try to reset the power (but keep it at the off position for longer) and see if it corrects the problem. If none of this works, we’ll begin higher level diagnostics.

A fan, or blower, that runs constantly can signal a huge problem. It can also increase your utility bills significantly. If you’ve noticed the blower isn’t shutting off, give Excalibur a call. We will try to switch the settings on the thermostat and reset it if necessary. This allows us to give the system time register the new setting. If the motor doesn’t turn off with the reset, it’s like that the issue is a faulty relay.

Evaporative Coolers Aren’t Always Easy to Fix on Your Own

Excalibur suggests checking the breaker or the fuse inside your evaporative cooler. Often, we find that the solution to be simple: the fuse has been blown and needs to be replaced. If the breaker in the unit is also tripped, then it should be replaced as well. If these parts are replaced and the unit still doesn’t work, we will check the wiring inside the cooler for signs of damage or voltage issues.

If you find that water dripping from an evaporative cooler, it is a sign of improper storage prior to the unit being used. To avoid this from happening, before you put your unit away for the cold season, make sure you: remove the pads, clean the tank, drain the unit, and cover the unit to keep dirt and dust out.

If you’ve followed these tips during storage and your unit is still leaking water, Excalibur will inspect the unit for other leaks.

Foul odors in evaporative coolers are caused by one or two things: either the growth of mold on the unit’s pads or stagnant water sitting in the tank for too long. An important part of maintaining your evaporative cooler is keeping the pad clean and the water in the pan from becoming stagnant. Excalibur can help you with overall maintenance to ensure your evap cooler is kept in good shape and lasts you many seasons. You can schedule regular service calls with us.

For Any Type of Heating or Cooling System, Sometimes the Only Answer is Replacement

Even with regular maintenance, every system reaches an end-of-life point. Whatever your comfort needs are, Excalibur can help you get the right system for your home with a great warranty. Together, we will discuss your budget and your personal comfort needs. Our experienced team will make sure we help you find and install the right unit for your Greater Phoenix Area home.

Do you have a heating or air conditioning unit that needs repairs? Call us at (602) 510-3431 or fill out our quick and easy contact form.