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Heater acting like there's no power to it?
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Author:  primejo07 [ Sun Jan 29, 2012 11:30 am ]
Post subject:  Heater acting like there's no power to it?

Hey guys, my 93 sierra's heater/aircon just stopped working the other day. Checked the fuse under the steering wheel and it's fine?
Anyone know what could be happening?
Cheers

Author:  alien [ Sun Jan 29, 2012 11:52 am ]
Post subject:  Re: Heater acting like there's no power to it?

the hose most likely came off at the back of the heater unit - you can just push it back on.

Author:  primejo07 [ Sun Jan 29, 2012 11:54 am ]
Post subject:  Re: Heater acting like there's no power to it?

alien wrote:
the hose most likely came off at the back of the heater unit - you can just push it back on.

Oh really?? Where abouts is that? Behind the dash? Sounds simple! Haha cheers

Author:  alien [ Sun Jan 29, 2012 1:12 pm ]
Post subject:  Re: Heater acting like there's no power to it?

yeah where the heater core is under the stereo, theres hoses back there against the firewall that can pop off, you just plug them back on.

Author:  primejo07 [ Sun Jan 29, 2012 1:37 pm ]
Post subject:  Re: Heater acting like there's no power to it?

alien wrote:
yeah where the heater core is under the stereo, theres hoses back there against the firewall that can pop off, you just plug them back on.


Alright, just had a look and al hoses are connected and stuff.. Anything else it could be??

Author:  alien [ Sun Jan 29, 2012 6:26 pm ]
Post subject:  Re: Heater acting like there's no power to it?

can you hear the fan blowing at all? mine had a loose wire that caused it to stop working once.

Author:  primejo07 [ Mon Jan 30, 2012 5:14 pm ]
Post subject:  Re: Heater acting like there's no power to it?

alien wrote:
can you hear the fan blowing at all? mine had a loose wire that caused it to stop working once.


nah, cant even hear the fan blowing. thats why im thinking its an electrical fault.. is there any other fuses the heater is involved in??

Author:  alien [ Mon Jan 30, 2012 7:44 pm ]
Post subject:  Re: Heater acting like there's no power to it?

im sure there's a fuse somewhere, but check around the back first for loose wires, as that's all the cause of my fan failing was... i thought for nearly 3 years i needed a new fan etc so never bothered to check it out, then when i got it engineered the demister had to work, so i stuck my head behind there to start taking it apart and found the loose wire... doh! lol all those winters spent de-fogging with window with the back of my hand...

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