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carkid
Imola


Joined: 13 Nov 2012
Posts: 850
Location: England


PostPosted: Tue Oct 30, 2018 12:24 pm    Post subject: 993 heater suddenly completely stopped. Reply with quote

I was out and about recently in my 993- I had the heater blowing in the footwell and windscreen- everything was fine. Now this morning nothing works - no blower at all, nothing.
Any ideas?
_________________
993 C2
997 turbo
991.1 GT3RS

Ex:
2015 991GTS
1990 964 C2
1982 911SC
 
  
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carkid
Imola


Joined: 13 Nov 2012
Posts: 850
Location: England


PostPosted: Tue Oct 30, 2018 4:57 pm    Post subject: Reply with quote

Popped a new fuse in slot number 1 in the fuse box and away we go.....
As a Porsche owner I naturally feared the worst and I’m happy it was trivial and not something that involved spending £500
_________________
993 C2
997 turbo
991.1 GT3RS

Ex:
2015 991GTS
1990 964 C2
1982 911SC
 
  
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Les Richards
Silverstone


Joined: 09 Apr 2009
Posts: 144
Location: Harlow, Essex.


PostPosted: Tue Oct 30, 2018 10:00 pm    Post subject: 993 heater suddenly completely stopped. Reply with quote

But what caused the fuse to blow?

That might be the concern now!

Although, to be fair, fuses can age and blow just because of it.

Just a thought.
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Les Richards

993
Polar Silver
5152 MU
 
  
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carkid
Imola


Joined: 13 Nov 2012
Posts: 850
Location: England


PostPosted: Tue Oct 30, 2018 10:03 pm    Post subject: Re: 993 heater suddenly completely stopped. Reply with quote

Les Richards wrote:
But what caused the fuse to blow?

That might be the concern now!

Although, to be fair, fuses can age and blow just because of it.

Just a thought.


Lol - I don’t care what caused it to blow!- it’s working now so I’ll keep
my head down and hope for the best.....!
_________________
993 C2
997 turbo
991.1 GT3RS

Ex:
2015 991GTS
1990 964 C2
1982 911SC
 
  
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ToreB
Approved Trader


Joined: 13 May 2010
Posts: 563
Location: Oslo, Norway


PostPosted: Thu Nov 01, 2018 8:17 am    Post subject: Reply with quote

A blown 30A fuse should not be taken lightly.
Fuse 1 feeds both the Climate Control Unit and the two main hvac blower motors. One or both motors has probably seized due to worn-out bearings and needs to be changed. The fuse blows when the fan run at full speed and the dry and worn-out bearings heat up.
Any oil on the bearings will only produce a burnt smell in the cabin, and not be a lasting solution to this problem.
Pull off the two pollen filter covers and rotate the fan manually to find the one that not spin freely.
Cheers,
Tore
_________________
'95 993 C4

Bergvill F/X
Porsche electronics specialists, products and repair services.
 
  
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