Why did the heater run cold

Why did the heater run cold was created by Simon Morriss

Posted 2 years 9 months ago #198345
Hi Everyone.

I have been trying to find the answer to this question but nothing yet.

Why did my heater run cold when the water in the heating system was over heating. I have an MG TF with the PRT.

Thanks

Simon
by Simon Morriss

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Replied by David Aiketgate on topic Why did the heater run cold

Posted 2 years 9 months ago #198349
Air/ gases entering the heating circuit and lodging in the heater matrix.

David
:shrug:

by David Aiketgate
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Replied by minimax on topic Why did the heater run cold

Posted 2 years 9 months ago #198370
Or that was where the air lock was. If the air lock stops the coolant from circulating, you know what comes next!
by minimax
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Replied by Bob on topic Why did the heater run cold

Posted 2 years 9 months ago #198372
The heater matrix bleed point can block so if you bleed it and nothing comes out try poking it with something sharp.
Last Edit:2 years 9 months ago by Bob
Last edit: 2 years 9 months ago by Bob.
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Replied by minimax on topic Why did the heater run cold

Posted 2 years 9 months ago #198378
Yeah, that usually makes things bleed!
Joking aside, that is a very good tip. A failure to fully bleed the cooling system really does mean trouble, sooner than later.
by minimax
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