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

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How much does Defroster is not working Inspection cost?

It depends on the type of car you drive and the auto repair shop you go to. Our mechanics are mobile, which means they don't have the overhead that repair shops have. They provide you convenience by coming to your home or office.

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$70 to $80
Labor: $70 -$80
Parts: $0
Average Dealer price
$93
Average Shop price
$83
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ServiceYourMechanic PriceShop/Dealer Price
Heating AC Inspection for 1983 Buick Century V6-2.8LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.41
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Heating AC Inspection for 1985 Buick Regal V6-4.3L DieselYourMechanic Price$70.00Shop/Dealer Price$84.54 - $95.45
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Heating AC Inspection for 2009 Kia Sedona V6-3.8LYourMechanic Price$70.00Shop/Dealer Price$84.53 - $95.43
Heating AC Inspection for 2000 Buick Regal V6-3.8LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.40
Heating AC Inspection for 1970 Chevrolet C10 Suburban V8-5.7LYourMechanic Price$70.00Shop/Dealer Price$84.61 - $95.56
Heating AC Inspection for 2005 Volvo S60 L5-2.4L TurboYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.52
Show example Defroster is not working Inspection prices

Defroster is not working Inspection Service & Cost

A vehicle’s defrosting system is an absolute necessity for safe driving during the cold winter months. Driving with a frosted windshield or fogged rear window and no way to clear it off can lead to limited visibility and dangerous driving conditions.

There are a number of things that can go wrong with the defrosting system ranging from blocked vents to a defective heater core.

How this system works:

Front Defroster

The front defroster uses the same blower motor, fan and venting system that the heating and air conditioning system use. Air passes through the heater core and then dry air that has been run through the air-conditioning evaporator is added to help remove the moisture from the windshield. All of this air is sent out through the defroster vents on the top of the dashboard. The hot air removes the any snow or ice while the dry air helps eliminate the humidity and fog.

Rear Defroster

On most vehicles, the rear window has tiny lines going through it, which are electrical wires. These wires heat up as current flows through them. The heat displaces the condensation on the window. These wires produce a very low heat factor so there is no danger of anyone getting burned if they touch the window.

Common reasons for this to happen:

Front Defroster

  • Buttons Stuck: In some cases a button or knob for the heating controls becomes stuck. Moving them back and forth until it moves into the defroster position may solve this problem.

  • Blocked fresh air intake: The fresh air intake is at the base of the windshield. It draws in fresh air, which helps the defroster function. If leaves or other debris are blocking the air intake it will affect the defroster.

  • Vent Issues: If the vents on the dashboard are clogged, this will prevent the air from reaching the windshield. A quick vacuuming of the vents may fix the issue, if not the clog may be deeper in the system and require a professional.

  • Low Anti-Freeze: The heater core depends on hot antifreeze moving through it to heat the inside of the car. If the vehicle is low on antifreeze, it can affect the heating and defrosting systems. Anti-freeze should be checked and replaced on a regular schedule.

  • Malfunctioning Thermostat: The thermostat in a car works like a shut-off valve between the radiator and the engine. It remains closed when the car is first started to build up heat. Once the engine is warm the thermostat opens up to circulate anti-freeze to prevent the engine from overheating. If the thermostat is stuck open, the engine doesn’t warm up, so the defroster will not have the warm air it needs to function properly.

  • Bad Heater Core: The heater core is basically a mini radiator that is located behind your dashboard. It is the heart of the heating system and essential to the defrosting system. There are a number of things that can cause a heating core to go bad, it can become clogged up due to contaminants in the anti-freeze, hoses can come loose or broken and control valves can become stuck. A bad heater core will result in no heat, which means a non-functioning defroster.

  • Bad Blower: The heating and defrosting system rely on an electric blower motor to move the hot air into the cabin of the car and through the defroster vents. If the blower motor is malfunctioning, the defroster will not work. Issues can range from a blown fuse to a bad blower speed controller. The blower motor itself can also go bad and need replacement.

Rear Defroster

  • Broken Grid: The most common issue with a rear defroster is physical damage to the heating grid running through the rear window. Damage can be caused by objects rubbing across the glass, which can break some of the grid wires. If the grid is damaged, it opens the circuit. The defroster will not function from the point of the break forward.

  • Broken Tabs: There are tabs on the sides of the rear defroster, which connect the defroster to the window and the circuit. One of these tabs acts as the positive and the other is the ground. If one of these comes off or fails, the defroster will no longer work.

  • Old Age: As defrosters age they can lose their conductivity which reduces their ability to conduct an electrical current. Repeated cleaning, the sun and objects rubbing over the grid will eventually wear the grid down and at some point may break it, rendering the defroster inoperable.

  • Window Tinting Damaged Defroster Lines: When window tinting is applied it comes into contact with the defroster grid and can bond to the heating elements. It is possible that defroster lines can be broken during installation or removal of a window tint.

What to expect:

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

How important is this service?

A totally or partially defrosted windshield or rear window can seriously affect your visibility, leading to a very dangerous driving situation. Any issues with the defrosting system should be repaired immediately.

Fast and easy Defroster is not working Inspection service at your home or office.

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Steven
9 years of experience
Steven was great, I would hire him again in the future.
2001 MERCEDES-BENZ C240 - FUEL PUMP REPLACEMENT
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Tyler
22 years of experience
First time using the service. Tyler arrived on time (actually early) and got to work immediately. He explained everything and completed the work within the estimated time frame. He then again explained the completed work and let me know what routine services were coming due. He also told me what was in good shape. I didn't feel like I was being "upsold", just informed. He did a great job and I am quite pleased that I choose this company to do business with, and that I got Tyler as my mechanic today. I would definitely recommend both this mechanic and "Your Mechanic" services. I will certainly use them again in the future! Thank you, John Armstrong
2010 MAZDA 6 - BRAKE PADS REPLACEMENT (FRONT)
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Anthony
12 years of experience
Communication and knowledge of the car was great.
1999 CHEVROLET CORVETTE - PRE-PURCHASE CAR INSPECTION
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Joe
10 years of experience
Excellent Service!
2007 GMC YUKON XL 1500 - WINDSHIELD WASHER RESERVOIR REPLACEMENT
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Our mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%
Get a quote
ServiceYourMechanic PriceShop/Dealer Price
Heating AC Inspection for 1983 Buick Century V6-2.8LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.41
Heating AC Inspection for 1984 Chevrolet G10 V8-5.7LYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.53
Heating AC Inspection for 1985 Buick Regal V6-4.3L DieselYourMechanic Price$70.00Shop/Dealer Price$84.54 - $95.45
Heating AC Inspection for 1960 Chevrolet C20 Pickup V8-5.7LYourMechanic Price$70.00Shop/Dealer Price$84.56 - $95.49
Heating AC Inspection for 2009 Kia Sedona V6-3.8LYourMechanic Price$70.00Shop/Dealer Price$84.53 - $95.43
Heating AC Inspection for 2000 Buick Regal V6-3.8LYourMechanic Price$70.00Shop/Dealer Price$84.52 - $95.40
Heating AC Inspection for 1970 Chevrolet C10 Suburban V8-5.7LYourMechanic Price$70.00Shop/Dealer Price$84.61 - $95.56
Heating AC Inspection for 2005 Volvo S60 L5-2.4L TurboYourMechanic Price$70.00Shop/Dealer Price$84.59 - $95.52
Show example Defroster is not working Inspection prices

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