Post #1
Hi, I think my heater control flap is stuck. Reason being, I have flushed the matrix several times until it is running clear, bleed it up and the heaters are only luke warm. The right hand side one is the warmest, whilst the other three are only luke warm. When I divert it to the windows they are warm as well. There is no slack in the dial so I think the control flap might be stuck. How can I access it?
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displaying posts 1 to 10 of 10
| Author | Subject: Heater controls? |
 flynn_
Junior User  Location: Faketown Registered: 29 Jan 2011 Posts: 59 Status: Offline |
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 Posted 30th Jan 2011 at 20:53
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smegal
Seasoned Pro  Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #2
I would bet money on the matrix being blocked even though you've flushed it. Mine had the same treatment. Be careful though as it will go at some point. ________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 30th Jan 2011 at 21:46
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allesclar
Seasoned Pro  Location: Sheffield Registered: 17 May 2009 Posts: 4,254 Status: Offline |
Post #3
is it not a case of disconnecting the heater matrix pipes in the engine bay and flushing fresh water down in each direction to possible flush out the blockage?________________________________________ Team allesclar ® |
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Posted 30th Jan 2011 at 23:37
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flynn_
Junior User Location: Faketown Registered: 29 Jan 2011 Posts: 59 Status: Offline |
Post #4
Smegal seems to think not. Is it possible that it is blocked at the bottom and the water is just flowing through the top? |
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Posted 30th Jan 2011 at 23:42
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smegal
Seasoned Pro Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #5
I hope this isn't the case for yours and there is no harm in trying but the exact thing happened in my old 1.6 XS a few years ago. The matrix ended up failing while waiting for a ferry to Calais. I luckily found some French radweld that sorted it.________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 31st Jan 2011 at 00:22
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flynn_
Junior User Location: Faketown Registered: 29 Jan 2011 Posts: 59 Status: Offline |
Post #6
Hi smegal thanks for the advice. So is it likely that the bottom and mid part are blocked and the water is just flowing through the top part? What actually causes the metal to weaken enough for a hole to form in it? |
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Posted 31st Jan 2011 at 00:46
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smegal
Seasoned Pro Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #7
On mine it looks as if only water had been used as a coolant so the matrix filled up with rust, this rust blocked it up and corrodes through the matrix in the end.My uncle who is a mechanic even flushed the matrix through and said it was the flap, the flap is a dash out job so I left it. Later on (about a year) the matrix went, me and a mate fitted the new one and straight away got toasty hot air from it. ________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 31st Jan 2011 at 02:49
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flynn_
Junior User Location: Faketown Registered: 29 Jan 2011 Posts: 59 Status: Offline |
Post #8
Okay thanks I guess that must be the problem then. If it is necessary to take the dash out then I might as well do the matrix as well. |
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Posted 31st Jan 2011 at 03:02
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smegal
Seasoned Pro Location: Leeds Registered: 26 Dec 2005 Posts: 5,940 Status: Offline |
Post #9
What year is yours? ________________________________________ Ex SC-6Now in a Megane R26 |
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Posted 31st Jan 2011 at 15:44
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flynn_
Junior User Location: Faketown Registered: 29 Jan 2011 Posts: 59 Status: Offline |
Post #10
96 bud. Love your signature by the way. Is it plausible that the water could only be flowing through the top of the matrix, hence me only getting luke warm air? |
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Posted 1st Feb 2011 at 00:33
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