my car heater fan is not working

Check in the connector plugs for any signs of corrosion. Lastly clogged heating controls is one of the major and most common causes of car heaters not working.

Symptoms Of A Bad Or Failing Blower Motor Relay Yourmechanic Advice

Take a voltmeter and check for the presence of current.

. The blower motor resistor controls the fan speed of your blower motor. Next you can check for water leaks as this is one of the most common reasons for heaters not working. There are a few potential culprits for why your car engine coolant may not be heating up.

The only fault that is likely to develop is that the fan stops working because of a break in the electrical circuit. One of the most common problems with an automotive climate control system is a lack of blower pressure or no blower at all. If the fan is not working even when the car is overheating there might be a wiring issue or a bad connection.

The motor is usually earthed to the body by a separate wire. This is why the heater doesnt work. The heater and the AC of your car have only one mutual component.

Another cause might be that the electronically controlled blend doors that direct air flow are stuck or broken. Pour in the new coolant until the reservoir is full. A blown fuse might just be the reason your car heater fan is not working.

If your cars AC is not functioning due to the malfunction of the fan then. If your cars AC is not working there can be many reasons. Problems with the vehicles heating system will not prevent you from riding your vehicle in worm days.

The standard direct current they must put out is 12v approx. Apart from the fan your cars AC and no other component can affect the heater. Heater Symptom 2 My Cars Heater Speed Wont Change.

Most coolant hoses are made of. Typically the gauge needs to be in the coolant to read properly. Good luck Posted on Dec 07 2008.

The fan blower for your acheater is located under the glovebox. In this regard what causes a cooling fan not to work. If your car heating system is not working the problem can be due to one of only four reasons.

When it does happen youre left with a. Ensure to get them fixed for the normal functioning of your heater. If your coolant level is too low there wont be enough hot liquid in the heater core resulting in cold air.

However you must get it. The system is very simple and rarely goes wrong. Check for blown fuses and replace them to restore normal functionality.

Going over most common car heater problems and how to fix them. Fist you have to make sure its the fan. That means a trickle out of your vents instead of the rush you asked for.

If the coolant is low there may be air in the system which will lead to localized hot and cold spots. If you see the engine heating but the radiator fan isnt the fan wires could be the culprit. If it does its probably your fan switch.

Thats all it took for for mine to start working again. If it doesnt youll have to replace it. Simply unplug both the wires negative as well as positive.

Check the wirings going to the radiator fan from the control unit or relay. A problem with the switch which turns the fan on or off might also be the source of the problem. You should top up the coolant to the appropriate level.

Take your hand and smack the fan blower motor a few times. Problems with the cooling system issues with the heating core faulty water pump or malfunctioning heating blower fan. Coolant leaks can also be a contributing factor as to why your car heater is not working and can result in low coolant levels.

Coolant Level - The first thing to check is the coolant level. This circuit consists of a feed wire from the fusebox to the onoff switch on the dashboard or centre console and another wire from the switch to the heater motor. A wiring problem blown fuse loose or corroded connector shorts opens etc.

Thankfully installing a new blower motor resistor is also typically a simple repair. A fan failure or a failure of the fan relay or control circuit is bad news because it can allow the engine to overheat. HOW TO TEST HEATER BLOWER MOTOR FAN.

However it does not affect the heater at all. HEATER AC FAN NOT WORKING FIXIf the heater blower motor fan is not working on your car we will explain how you can test. The heater in your car works by circulating hot water from the engine into a copper or aluminum pipe coiled up in the dashboard.

Also check the connector plugs at the relay and control unit. Make sure to do this when your engine has cooled down to avoid being burned. The heaterairconditioners fan blows across it and the hot air comes out of the vents.

When your heater blows warm air but you cant adjust the speed of the fan its likely your blower motor resistor. If youre getting no heat coming out the vents either your heater core is not warming up yo. After letting the car cool remove the radiator cap and place the funnel in the opening.

Coolant leaks can come from coolant hoses a bad radiator or a blown head gasket. The first thing to do if youre having issues with your car heater is to check your engine coolant. You may need to.

Heater Blower Motor Resistor. Engine thermostat is stuck OPEN engine never gets hot enough to turn on the fan Faulty fan relay. You can jump it from the battery to make sure it dosent work.

If little air is coming through the vents hot or cold then it could be because the blower motor for the fan or a switch or resistor that controls fan speed isnt working.

Car Heater Repair Tips Fixing A Blower Motor Diy Family Handyman