Heater not working? Get your car inspected at your home or office.

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Heater is not working Inspection Service & Cost

When the temperature outside dips, it’s essential that your car’s heater is working up to spec. If not, you could be putting yourself and your family in danger, and not because your car’s cabin will feel like the inside of an icebox. It will, but that’s simply a nuisance. A more immediate issue is that a failing heater can prevent your defroster from blowing the warm air needed to clear ice and frost off your windshield so you can see the road ahead. Clear visibility is essential for safe driving conditions.

How this system works:

A car’s heating system is very similar to its cooling system. In the latter, coolant circulates through the engine, absorbs heat, and dispels it into the outside air by way of the radiator. In the case of the heater, the same piping hot coolant runs through the engine, but is funneled through a much smaller radiator called the heater core. Instead of venting the heat outside the car, a blower fan pushes the warm air created by the heater core through air ducts and into the vehicle.

A heater that's working properly should circulate air that's a toasty 75 to 100 degrees Fahrenheit. If it doesn't, there is a problem within the system.

Common reasons for this to happen:

There are a number of reasons why the heater might not be working properly. Here are the most common ones:

Low coolant in the radiator

Keep in mind that the warm air that rushes into your car in the byproduct of the heat of the coolant in your vehicle's engine. If that coolant is low or contaminated, you have a problem. Although a leaky or weak radiator cap might be to blame, it’s more likely there is a leak somewhere in the coolant system. Coolant doesn’t evaporate on its own.

Blown fuse

The main job of a fuse is to protect the electrical circuits in your car from shorting or overloading; i.e., a fuse protects the wire or wires they are connected to from overheating and catching fire. Fuses are rated by their amperage and are designed to blow or open when the current being drawn through them exceeds their design rating. If a device draws enough current to blow a fuse, you've probably got a problem somewhere else in the system that will cause the fuse to blow again, sooner or later. Rarely do fuses fail for no apparent reason.

Air pockets in the heater core or a heater hose

This is another common culprit, and may be interfering with the flow of coolant through the heater core. Typically if you have air in the cooling system, then you have a leak that’s allowing coolant to escape and air to take its place. The mechanic will pressure test your cooling system to determine where air is entering the system, and will then bleed the air pockets from the cooling system as per the manufacturer’s instructions.

Bad water pump or serpentine belt

The water pump keeps the coolant circulating throughout your engine. Water pumps are belt-driven, and belts have a tendency to break and wear.

Malfunctioning thermostat

The job of a thermostat is to regulate the flow of coolant. By doing so, it lets the engine warm up as quickly as possible, thus reducing engine wear, deposits and emissions. When the engine is cold, the thermostat doesn’t allow coolant to flow through the engine. Once the engine reaches its operating temperature (generally about 200 degrees F, 95 degrees C), the thermostat opens, and the fluid starts flowing. When the thermostat is worn out, it remains stuck in the open or shut position, which leads to either overheating or cool operation, respectively.

Clogged heater core

Debris in the cooling system, such as rust particles or other goop, can potentially plug the heater core and block the flow of coolant.

Malfunctioning blower motor

Any fan can go bad, and it's a fairly easy replacement procedure. Before doing so, however, the mechanic will check the resistor, motor and fuse for proper operation. Failure of any of these components may result in the same symptom.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the heater malfunction, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will perform a thorough check of the entire heating system.

How important is this service?

It goes without saying that a properly operating heating system is important. No one likes to drive while shivering. Also, a nonworking heater will adversely affect the way your defroster does its job, which will in turn hinder visibility, limiting your ability to drive safely. Book a mechanic to perform a thorough inspection as soon as possible.

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268 reviews
16 years of experience
Did the inspection and recommended the correct parts for the problem I was experiencing. Bought the parts myself and had him come back to install everything. Richard did a great job in a timely manner. Plan to use in the future for other issues with our vehicles and would not hesitate to recommend based on my experience.
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246 reviews
19 years of experience
He is superb! I spent months looking for the perfect used car in my budget. I had nearly given up until I found the car online about an hour away. Godwin arrive early, was knowledgeable and professional. It felt wonderful to have someone who was there for me to evaluate the car and tell me the truth. He even drove the car and called out a minor issue. The report was comprehensive and he took time to answer questions. You will not regret the service. Godwin is the real deal and a true value add to your transaction.
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19 reviews
5 years of experience
Check Engine light was on. Ran two codes which told me that the issues were coming from the oxygen sensors and EGR system. I just replaced the oxygen sensor so I figured it was the EGR system. I booked the cleaning of the EGR system and to replace the EGR valve. After he completed the task, he checked my oxygen sensors and told me they were working just fine. I checked the car right after and the check engine light went away. However, just a few hours later, the check engine light came back on...
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3 reviews
2001 years of experience
I had an excellent experience. Ryan was on time, professional and welcomed me hovering over him as he completed the repair to my vehicle. There were no surprise additional costs; the processed payment was exactly what was quoted.
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