I have a twin 8' fittingwith 100/125 (?) tubes. One of them is not working properly. The tube flashes as tho' trying to 'strike', but keeps flashing till I take out the starter. Then it stays on. Meanwhile the other tube functions faultlessly.
From this I assumed it was the starter that needed replacing. New starter, with correct details 8' 100/125 watts, and still the darling light flashes away.
Can I assume the tube is OK? (On the basis that it works without the starter in situ.) I have tried a few different starters, is there something else that I should have a look at?