Heating and Air Conditioning Repair Services

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Heating and Air Conditioning Repair

When it is cold or when it is hot, you count on your heating and your air conditioning. Vorderman Motor Werks is equipped to immediately diagnose and solve any and all of your car's heating or air conditioning issues. Often customers are surprised how little time and how inexpensive it is to fix such a vital part of the driving experience.

If your air conditioning or heating is giving you problems, we'll not only take great care to solve those issues, we'll do it for ten percent (10%) less than any written quote from another auto repair service center.


Air Conditioning and Heating

At Vorderman Motor Werks, we are experts in all areas of car heaters and air conditioning systems. Whether your heater is not working in the winter months or air conditioning is malfunctioning in summer months, our trained ASE-mechanics / technicians are both capable and prepared to make a proper diagnosis and repair based on our findings. Whether you need a simple recharge to your air conditioning system or require a new compressor, condenser or evaporator, we are Fort Wayne’s premiere choice for the job. Below we’ll discuss car air conditioning systems and heaters in depth to help provide a better understanding of both systems and their processes.

Car Air Conditioning Information

Invented in 1939 by the Packard, air conditioning was placed into the first car in 1940, a Packard fittingly. When properly functioning, the air conditioning system in your car, truck, van or SUV is doing two things; cool the air and remove humidity. Interestingly enough, not much has changed in terms of how air conditioning systems function, but the coolant used has changed. All vehicles manufactured after 1996 use the coolant R-134a or HFC-134a opposed to the traditional, and environmentally unsafe, R-12, CFC-12 commonly referred to as Freon. Freon was proven to be damaging to our ozone layer, so any repair work performed on vehicles older than 1997 must be exchanged out with the new and legal coolants mentioned.

Air Conditioner Parts

There exists three main elements that make up a car, truck, van or SUV’s air conditioning system; compressor, condenser and the evaporator. There are obviously peripheral parts within the system but these three elements represent the main parts, each playing a different role in the proper functioning of your cars’ air conditioning system.

Car Air Conditioning Explained

There are two sides to an air conditioning system, a low pressure side and a high pressure side.

Vehicle Air Conditioning High Pressure Side

High pressure side refers to the parts that lead from the engine to the passengers. This high pressure side is where you’ll find the compressor. The air conditioning compressor pump receives the low pressure coolant in gaseous form and true to its name, it compresses. A belt drives the pump, which in turns puts the gas under high pressure and then pushes it out to the condenser. Compressors are not able to compress a liquid, so the low pressure gaseous coolant received by the compressor is pressurized before sending it to the condenser.

Once the condenser receives the high pressure gas, it ultimately changes this gas into liquid just as steam that cools turns to liquid. The condenser is essentially a radiator that radiates the heat out of the system when the pressurized gas enters the condenser it must pass around tubes which are intertwined containing the coolant, until it turns to liquid refrigerant. At this point, the liquid coolant is almost ready to air condition the passengers in the car.

Next up in the process is the evaporator, but the liquid refrigerant must first be dried to free any water accumulation through the first two steps. Desiccants attract the water which keep passengers from getting wet while the air conditioning system is on. Also, if water was to remain in the system it will crystallize and cause damage to the air conditioning system.

Vehicle Air Conditioning Low Pressure Side

Before sending that high pressure liquid refrigerant to the evaporator, it must travel through the TXV (Thermal Expansion Valve) which allows the refrigerant to expand and regulates the flow to ensure quality control of the system. The parts contained within are moving and over time they will fail requiring air conditioning repair. Of course, some vehicles use an orifice tube opposed to an expansion valve, but their function is the same; regulate flow and allow for expansion or depressurization and even absorb heat opposed to dissipating heat. Often the orifice accumulates debris over time and becomes impassable.

The liquid refrigerant now passes into the evaporator coil as low pressure liquid at approximately thirty two (32) degrees Fahrenheit / zero (0) degrees Celsius. If water existed in the system at this point, it would freeze causing harm to the air conditioning system, where the refrigerant does not freeze at this temperature. Miraculously enough, the refrigerant will not freeze at this temperature, but the temperature of a cars’ cabin is enough to make it boil and turn to gas. In this gaseous form, the refrigerant will absorb a lot of heat.

At this point, the gas is moved out of the evaporator and the heat of the cabin is drawn out while a fan blows on the outside of the evaporator coils into the cabin. Pulling heat out while injecting cool air into the cabin, your car is now being air conditioned. Of course, the process is a loop and continues in its air conditioning cycle.

Humidity is removed from the air within the car cabin by the evaporator. Often you’ll see a parked car running with air conditioning turned on and it is dripping water. This is normal and part of the air conditioning process where water is extracted from the system.

What is Air Conditioning Recharging?

In a nutshell, AC recharging entails replenishing or refilling the refrigerant coolant. The EPA requires the modern R-134a or Free Zone, Kar Kool or Freeze 12 to be used in refilling your air conditioning systems refrigerant.

At Vorderman Motor Werks our trained ASE-mechanics / technicians are capable of proper diagnostics of all domestic brand air conditioning systems but also all import vehicles. And of course, accompanying our vast knowledge of air conditioning systems are the tools necessary to replace and or repair any aspect of your car’s air conditioning system here in Fort Wayne. Although our team specializes in import air conditioning repair, we can perform air conditioning maintenance on any domestic brand equally as well.

Car Heater Information

Today’s vehicles are designed to have constant air flow through the cabin whether the windows are up or down. The engine can be harnessed to warm this air as it passes into the cabin. The process is significantly less complicated than the process of air conditioning the air flow as one can imagine.

Car Air Flow

Vehicles have a large duct in the nose of the car that catches and rams air into the heater, which warms the cabin if and only if it is desired or set to do so. Other times the air is inducted through the cowl vents where the same process takes place. The air is passed through the cabin with ducts typically in the foot area, the dashboard, the windshield area and many times a rear passenger duct as well. Air flow to the various areas is typically controlled by opening and closing those individual ducts allowing more air to pass through to the feet area, dash area, window area etc…

Car Heater

In water cooled cars, hot water from the engine is pushed through a hose while incoming air is passed through this water heated matrix. An electric fan is typically used to blow air through the system while the car is not moving but can be forced through the system through natural air flow when driving.

In a water valve system, the air goes through the matrix and the temperature is controlled by regulation of the amount of water allowed to pass through it. An air blending system, the matrix maintains a persistent temperature at all times and the mixture of air is regulated. These two types of systems control the temperature.

The temperature to which the air is warmed is controlled by either a water valve or an air-blending system. The water-valve type is found mainly on earlier cars.

The temperature control on the dashboard works a tap which lets either more or less hot water through the matrix. The setting is slow to respond to change and difficult to regulate exactly.

The air-blending system has a matrix that is heated constantly. The temperature control opens and closes flaps that blend heated air with cold air from outside.

In situations where cars are cooled by air, the air flow is simply heated by ducting it around the exhaust and regulation of temperature is performed by regulation of how much air is ducted through that exhaust and mixed with air flow at varying amounts.

Vehicle Heater Repair and Inspection

Vorderman Motor Werks ASE-certified mechanics and technicians are more than qualified and our state of the art facilities are the best in Fort Wayne to handle any and all of your car heater repair or issues. Our team is trained to perform extensive diagnostics and to accurately describe the issues with our valued customers prior to executing repairs. We will give you the information you need to make a great decision for you and your family regarding heating and air conditioning repairs.