Sounds to me like you have an airlock that making the cooling system switch on your hi speed fan.
The ticking could be a noisy tappet, or a Vis motor malfunction, if not a vis then id suggest an engine flush in case a tappet has caught some muck during the work.
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Lest we forget..
Last edited by trikey; 1st April 2022 at 19:59..
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