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York AC blown 3 amp fuse how do I replace?

The 3 amp fuse was replaced by HVAC tech a week ago now same symptoms I would like to do this my self can someone tell me how?

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The fuse is for low voltage 24v wires it is most likely located on the control board inside your furnace or air handler most of the time it will look like an automotive fuse there is probably a reason why its blowing usually a pinch or short in the wire if its a re accuring problem you might want to get a resetable 3amp fuse or popper i would be more concrned about calling the company and saying you charged me and never fixed the problem

Posted on Jun 28, 2009

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Posted on Jan 02, 2017

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HEATER NOT WORKING ON 03 YUKON


Heater not working ???? Blower motor not working , no air blowing out of the vent's. defrost , floor ? I'm assuming you have the manual HVAC - climate control system , by the fact that you replaced the resistor assembly . Was there a relay included on the resistor assembly ? What fuse's did you replace ? HTR/AC - 30 amp. left I/P fuse box , BLOWER fuse -40 amp - under hood fuse box ? Did you use a DMM - digital multi-meter an test for B+ voltage at the purple wire at the blower motor ? The fuse's you replaced ,check for B+ voltage with meter .
Your vehicle could have two different HVAC systems , manual & automatic. The automatic system doesn't have a resistor assembly , has a blower motor control processor. Do you know how to test automotive electrical circuit's ?

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Our 2012 Arcadia danali is blowing hot air out of the drivers side ac and cold air on passenger side. This just started since we had the batterery replaced a week ago. Any suggestions


Sometimes the system will reset if you pull out the hvac fuse, wait a while, and put it back in. If not, the blend door actuator will have to be checked.

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Where's the relay for the blower located in a 2001 suzuki xl-7 grand vitara


the car has 26 relays!@
and 1 to or 3 fans
are you saying the heater/ A.C blower is dead./ the HVAC?
or engine fan (its mech for rad)
or condenser fan, no symptoms posted, just relay hunts.


my guess is you dont know how the blower in the heater works.
so will cover that.
The HVAC.
First test is blower in high, failing is bad fuse.?
if lower speeds fail, (a top clue) then the blower resistor is bad.
but only on the manual hvac option!

lets backup,I have full parts list on your car, here, USA. spec
the car came new with 2 class type of HVAC
manual AC with blower resistor
or
full auto system that as a new brain box, and a transistor box
that controls blower, at all times, its just a transistor. (no brains)
some cars with the full auto HVAC feature
have a self test mode.
and self calibration feature (learn) all this is in the BIG BOOK.
apples and oranges, different to the extreme.
so instead of me guessing car you bought. ill tell you to RTM

just 4 bucks, and only covers that exact year, and car only.
not a clone book as the folks post here , RAG books.
the real deal here from suzuki actual....

the BIG BOOK. see chapter HVAC and read.
https://suzukipitstopplus.com/Products/1174-2001-grand-vitara-xl-7-service-manual.aspx

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York affinity 9.s series, year 2008. I have not used my furnace since last winter (approximately 7 months ago). I went to start it up this year for the first time and it will not start. Upon inspecting...


Fuses will blow if there is an overload.
Breakers only trip if there is a short to ground.
Since you replaced the fuse and it blew and tripped the breaker , I would check for a wire problem. Also check the elements that rodents haven't built nests ect...

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The 40 amp fuse on my heat pump blew and was replaced by an HVAC pro one week ago. He said the system was old and needed to be replaced. Other than adding some coolant several years ago, the system h


You posted this question in the car section, but I will say based on your description the compressor is probably going out. It draws the most current of any component in the system.

Dec 20, 2012 | Cars & Trucks

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2002 chevy venture ac panel no power


Before assuming - look at a wiring diagram an check power an grounds to the HVAC control module . There are no relay's involved ,two fuse's .DRL/TEMP/HTD ST fuse 10amp - location I/P - instrument panel fuse box & Radio fuse 10amp -location underhood fuse box. Ground point - G200 .Do you know how to test automotive electrical circuits using a wiring diagram an a DVOM - digital volt ohmmeter ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. Under system click on HVAC ,then under subsystem HVAC controls will pop up automatically . Click the search button , then the first blue link .
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems

If power an ground are good ? replace the HVAC module .

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1 Answer

My bmw 318 is blower fan not working


Blown Fuse
  • Usually the first thing to inspect when the blower fan stops working is the fuses to see if any are blown. Locate the 10A cluster fuse or the 25A HVAC fuse in your car manual, and examine them to determine if they need replacing. The car owner's manual will tell you where to find the fuses that are connected to the heat and/or air conditioning. On the interior fuse panel of the car, a 30 amp fuse is labeled "Heater" or "HVAC."

Bad Blower MotorIf the fan only works on setting number 3 or 4, or just on the highest setting, it is most likely that your blower motor is failing and is about to die. Use a voltmeter to test the amount of voltage at the blower motor connector with your ignition on and AC running. If it reads 12V, the motor needs replacing.Automatic Climate Control SystemAnother thing that causes the blower fan to malfunction is the Automatic Climate Control System (ACCS). If the ACCS's settings are off, it may cause the fan to stop working. If it is the climate control on the car, typically it is a bad thermostat or electrical circuit that is the culprit.
hope this helps, James Booth

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1 Answer

Hi All, I have a carrier reverse cycle airconditioning unit and about a week ago the digital thermostat blanked out. I spoke to an aircon repair tech and he suggested that the fuse is blown at the air...


It will be inside the unit main panel. Turn main power off and remove the main front panel. The fuse will be located on or near the fan control board. Typically they are a flat agc type fuse. 3-5 amps. The problem will be that if the fuse is blown -there is a reason for it. They don;t just wear out and blow. Look for frayed wires around the outside unit and in the thermostat to make sure you dont have a short. Otherwise, you will just blow the fuse you replace.

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