29/12/2022 at 14:24
#417650
Alasdair Pickering
Thank you all for the helpful suggestions. Today I put 12v directly to the fan and it ran fine. Then I swapped the relay for the one fitted to the windless (its the same) started the engine and voila – all good. Swapped back the relays and tried again and once more it ran ok. So what the initial issue was I really don’t know but I know what to check if it happens again!