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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » Heaters won't blow hot


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Author Heaters won't blow hot
gidged500
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Registered: 18th Aug 09
Location: Lancashire
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3rd Nov 12 at 20:25   View Garage View User's Profile U2U Member Reply With Quote
Just replaced my matrix all the fans work but won't get hot :/ any ideas
Jamie-C
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Registered: 3rd Jun 08
Location: Ballycastle
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3rd Nov 12 at 20:30   View User's Profile U2U Member Reply With Quote
Could be air in the system but they self bleed so shouldn't be, let the pressure build up then loosen the header tank lid slowly to release any air. If not then probably your thermostat.
gidged500
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Registered: 18th Aug 09
Location: Lancashire
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3rd Nov 12 at 20:31   View Garage View User's Profile U2U Member Reply With Quote
Thanks I'll try that
Jed D
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Registered: 15th Mar 11
Location: Durham
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3rd Nov 12 at 21:16   View User's Profile U2U Member Reply With Quote
run it til hot and then put your blowers on full whack, cap off

as said, sounds like an air lock
gidged500
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Registered: 18th Aug 09
Location: Lancashire
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4th Nov 12 at 12:43   View Garage View User's Profile U2U Member Reply With Quote
Think it's my thermostat :/ tried what you guys said and it hasn't made a difference
davegreen
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Registered: 20th May 12
Location: Oxfordshire
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4th Nov 12 at 14:43   View Garage View User's Profile U2U Member Reply With Quote
check to see if the pipes to and from the heater matrix are getting hot? and that the valve control wire is opening the vavle when you move the control from cold to hot.
VegasPhil
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Registered: 16th Jan 05
Location: Fareham, Hants Drives: Octavia VRS
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4th Nov 12 at 16:03   View Garage View User's Profile U2U Member Reply With Quote
Are the heater controls still connected if you have had it all apart?

Corsa 2.0 16v Vegas - Sold
gidged500
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Registered: 18th Aug 09
Location: Lancashire
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4th Nov 12 at 18:56   View Garage View User's Profile U2U Member Reply With Quote
I only took the bottom of the dash off where the heater matrix is I didn't take the dash out
SimonTW
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Registered: 28th Jan 12
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1st Dec 12 at 09:30   View User's Profile U2U Member Reply With Quote
Have you checked to see that both water pipes are connected to the Matrix?

 
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