Where would i find the fbh control valve, the guy who looked at it for me was suspect of the of what looks like a pump that mounted behind the fbh, it has two hoses connected to it, i was thinking about connecting the two pipes to bypass the unit to see if it allowed a flow.
hi @niffty10
have searched through some of my manuals for u
ur find that valve between ur main battery box and FBH where it’s bolted to the side
plse don’t quote me on this but I believe that valve has one water connection that leads onto ur cabin heater , have been reading through many manuals to try and find out more details for u , but with the engine running indeed feel the 2 x bulkhead water pipes that go into ur cabin heater
also a good idea as suggested by @lynall regarding a infra red thermometer off eBay
hope it’s useful and will try and find out more details for u