One of the electrical contacts on the old temperature sender had broken off. This meant no connection to the alarm and light on the panel. A new one was ordered from Beta Marine.
Cooling water was partially drained (and saved) and the old sender came out with no problem. The new one is certainly a different size but fortunately the staff at Beta Marine send an adaptor and this made the fitting straightforward.
Cooling water was partially drained (and saved) and the old sender came out with no problem. The new one is certainly a different size but fortunately the staff at Beta Marine send an adaptor and this made the fitting straightforward.