Auto AC & Heating Repair in Palmerston, CA

Proper maintenance and timely repairs are crucial to keeping your auto AC and heating systems functioning optimally.

CDP Diesel & Auto offers relevant services to ensure your driving comfort in all weather conditions.

When your vehicle’s heating and air conditioning fails, it can leave you driving in extreme weather conditions. The experienced HVAC technicians at CDP Diesel & Auto will determine and repair the problem as quickly as possible. Whether your system uses air con R1234YF or R134a refrigerant in Canada, we have the equipment to make the repairs.

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HVAC Components

The HVAC system in your vehicle is complex. When you need auto AC repair, you must replace several parts as they become contaminated. 

Auto AC Parts

The various parts of an auto air conditioning system include:

Air Compressor:

Compresses refrigerant to raise its temperature and cycles it through the system.


A storage tank for extra refrigerant. It also has a filter and desiccant material to remove moisture and other impurities.


It cools the hot refrigerant by transferring the heat to the outside air.

Flow Control Devices (orifice tube or expansion block):

They control refrigerant flow to the evaporator.


The air is blown through the evaporator, which absorbs the heat and boils the refrigerant to a vapour state.

Air Distribution System:

Includes the blower fans, air ducts, and airflow control valves.

Cabin Air Filters:

Keep the air clean from dust and soot particles found in the air in the vehicle’s interior.

Other Components:

Include high and low-pressure lines, tubes, control sensors, and pressure control devices.

Auto Heater Parts

The heating part of the HVAC system is not as complicated as the air conditioning side. The components include:

Heater fan:

Blows the heat into the cabin.

Water pump:

Pumps water through the engine to keep it cool.


For most vehicles, the thermostat will open at around 195 degrees to allow coolant to flow through the radiator to cool off so the vehicle doesn’t overheat.

Blower motor:

Blows hot air from the hot coolant or cool air from the refrigerant through the HVAC system.

Heater Core:

Radiates the heat from the hot coolant past the blower fan to heat the cabin’s interior.

Heater hoses:

Carries coolant in a cycle from the engine to the radiator and heating system and back to the engine.


Our Auto AC & Heating Repair & Services in CDP Diesel & Auto

Here are some typical jobs we can do for your vehicle’s air conditioner and heater:

Refrigerant Leak Repair

A refrigerant leak can lead to decreased cooling efficiency.

Compressor Replacement

If the compressor fails, the AC system won’t function effectively.

Evaporator Core Replacement

A leak in the evaporator core can result in insufficient cooling.

Condenser Repair or Replacement

Damage to the condenser, such as bent fins or leaks, can hinder the AC system’s performance.

Blower Motor Repair

A malfunctioning blower motor can lead to inadequate airflow.

Heater Core Replacement

A leak in the heater core can lead to coolant leaks and inadequate heating.

Thermostat Replacement

The thermostat regulates the engine temperature; a faulty one can result in inconsistent heating.

Heater Valve Repair or Replacement

If the heater valve is stuck open or closed, it can affect the heating system’s performance.

Electrical System Repairs

Issues affecting various electrical components, such as sensors, switches, and relays, can lead to inconsistent cooling or heating.

Ductwork and Ventilation Repairs

Blocked or damaged ductwork can hinder the distribution of cooled or heated air throughout the cabin.

Contact CDP Diesel & Auto in Palmerston, ON for Auto AC and Heating Repair

Any parts in your vehicle’s HVAC system could break at any time, though they are—for the most part—known to last for many years. While they are referred to as one system, if the heat breaks, you will most likely still have air conditioning and vice versa.

Whether you need vehicle maintenance, repairs, or an inspection, contact CDP Diesel & Auto at (519) 418-3344 or email [email protected] to schedule an appointment. We are conveniently located at 114 Noble Family Road, Palmerston, ON N0G 2P0, Canada.