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Why did both lights fail at the same time?

The fan works. Is there a fuse or some other trick to get them to work?

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How to trouble shoot front blower


There are several reasons for a blower to stop working. Does it work on ANY speed? Does the AC compressor lamp or any of the vent control LEDs still work when using the AC controls? Do ANY of the speed for the blower work or are they all dead?

1st, you wanna check your fuses. There will be fuses in the underhood fusebox marked blower or heater fan, check and repalce as necessary. Also, if the earlier check for working LED bulbs on the AC control panel showed some or all lights dont ever turn on when engine is running, you may have problems with the control system.
if the fuses are good, now you need to test parts. there is a blower motor speed control aka blower resistor that frequently fails on most cars. It is the part that carries the current for all speeds of the blower and regulates speed when commanded. It has to absorb the excess energy to lower speeds and it tends to get very hot and burn out as a result. If it has failed, there will be power IN on one of its wires, and no power OUT on any others. If you have no multimeter or testlight to check things like this, Id recommend taking it to a certified mechanic.
If the control lamps all work that means controls have power, if the blower resistor has no power, fuses or blower relay are the most likely cause. if the blower resistor has power but still no fan, most likely your fan has failed. as a general rule, I replace fans and blower resistors as pairs. fans tend to last longer, but they also get more demanding with age (kinda like people) and that extra demand will burn out the newer resistor much faster than when the fan was newer. it can be alot of time and money to change a blower TWICE, so to be sure it wont fail again, test current, or simply replace the blower fan if it is determined a resistor has failed. (a good fan in theory shouldnt draw enough amperage to burn out a good resistor, EVER, so if the resistor burns, the fan is typically drawing too much power, and even though it works "fine", it will burn the next resistor in a short time as well.).

Feb 24, 2015 | 2005 Dodge Caravan

1 Answer

2007 Suzuki Forenza ac/heater/defrost fan not working


the cab heater fan?, there can be 4 fans on some cars.
front condenser, 2 on rad, and 1 in cab heater box.
the cab fan? does it fail on high too?
it has a switch, (marked fan speed)
the switch is bad ,if low speed are dead. and high are good.
or wiring to it , the motor or the fuse.
even a cracked fuse, change the fan fuse to a new fuse.

Mar 29, 2013 | 2007 Suzuki SX4

2 Answers

Blower fan not working


The resistor bank is bad for slow speeds, the switch is bad for high speed. In your test, you have voltage, but the switch wont carry the amps, to run high speed. Open circuits will not blow fuses. Replace both switch and resistor bank for all speeds. Make sure to clean leaves and trash from fan housing and see if fan spins freely.

May 17, 2017 | Cars & Trucks

1 Answer

Lights, windscreen whipers and inside car fan has stoped working all at the same time!


all of these devices have fuse in your kick panel (box beside gas pedal). most probably, the main wire connector in the kick panel became loose thats why all the devices failed at the same time

Jan 31, 2013 | Cars & Trucks

1 Answer

I have a 96 olds silouette just had a new ac compressure put in, and head and manifold gasket job done on my ride, now today the inside blower fan doesn't work, can anyone give me an answer? p.s t


There is a resistor that controls the fan speed, it can fail. The brushes in the fan motor can fail, the bearings in the fan motor can fail.

It is possible the engine temp sensor had failed in a shorted position to always indicate overheating. It is also possible for multiple failures in a short time frame, I had to repair one that had 3 items fail on the same starting circuit, yet when going through the troubleshooting steps the first time everything checked fine up to the first component to fail, then once that was replaced, a second item had failed, likely due to the ability of current to flow without as much circuit resistance, and then it failed. followed by the next item that failed after the repair of the second item- yet during the troubleshooting, the first and second time, it checked out fine. Then it failed. Once repaired the car worked fine. It does happen. I once owned a truck that had a failure that 45 dollars in parts or more every 6 weeks like clockwork and each time it was something else, and this started about 10 months after I bought the thing.

With your van, there are some things you can check with a simple test light, disconnect the fan motor wire, and check to see if there is voltage with the test light. If there is light, check each fan position, Then run two jumper wires over to the fan terminals. apply 12 volt power. If the fan comes alive and you had voltage on the wire to the fan, check to make sure the ground wires or straps are present from battery to engine block, engine block to frame, engine block or frame to the body sheet metal. If any are missing, replace them. Because things behave badly when a ground wire is corroded through or broken.

The AC compressor runs on it's own fuse, the blower motor fan runs on it's own fuse, the temperature gauge runs on its own fuse with the other dash gauges. There is also a temperature sensor for the ECU, it is it's own discrete circuit.

You may also have a problem with vermin feasting on your wiring harnesses.

Jun 11, 2012 | Cars & Trucks

1 Answer

Fan motor not working on heritage ceiling fan taurus series after light switch failed


take the fan shrodwing off and check your wiring but before you do that check your fuse box it may just be a fuse

Jul 10, 2011 | Heritage (5EMW52AB3PF) 52'' Ceiling Fan

3 Answers

My heater fan keeps cutting out or not coming on. Sometimes both the ciculate and air from outside lights are on at the same time. When it's not working, the cruise control light comes on when I play with...


Hi it sounds like the heater fan is faultly or failing they can work intermitently and then not at al, do check your fuses though as a melted fuse may still work.

Let meknow if you need more info
Regards
Dan

Feb 09, 2010 | 2002 Chevrolet Impala

1 Answer

HP DV928US When battery in or charger plugged in


fails battery out so leave it out they love to short.
so when it fails test 2 is, hit the F10 or ESC key promptee
went it fails to boot, check BIOS key first, if BIOS fails.
be more clear.
what does it do when it wont turn on.
BIOS dead. screen 100% dead, and not even text
BIOS works even with HDD and DVD drive pulled.
that is the acid test on PCs.
the screen must say, hit F10? or ESC to enter setup, means HP BIOS. it must or power is no good. get a new power pack
the shut down tell me lost power, that can be the power pack 19vdc
or the jack at the mobo if failing to said pack.
try side pressure on that jack if at anytime the power button fails.

it self shuts down, I got that but lets fix , cant boot first.
that is how to fix this.
power on failures, are you saying the power key fails. some times
and the fan does not run every time.?
Also,
this old LT uses CCFL back lamps.
that love to fail. so when it shut down did the fan die.
did the HDD stop spinning ear to bottom? if not the CCFL is failing.
using and external monitor proves this every time,
do the flash light trick?
http://www.pcdied.com/monitors.html#flashlighttest

Aug 29, 2017 | HP Pavilion dv6928us Notebook

1 Answer

Cooling fans dont work wont shift i hook a test light to ground and hot it shows ground loss of


I have no idea what your post means but here is how fan works: Temp sending unit sends signal to the computer, computer sends ground signal to the relay, relay completes circuit to fan. A/C bypasses that and turns fan on automatically, so fan runs all the time with a/c on. Check fan itself by hot wiring it to battery. If it fails to go on, the fan motor has failed. All else needs to be tested using a volt meter to check power flow. Also make sure any fuses for system are good.

Sep 10, 2009 | 2000 Chevrolet Camaro

1 Answer

Will not heat. Fuse and diode check good. Fan, lights, horn, etc all work fine.


The magnetron has failed, simply replace this component and this will fix your heating issue.

Jun 02, 2009 | Microwave Ovens

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