hi i am trying to understand my boiler and the manual isnt very helpfull, boiler is a glowworm swiftflow 75 and doesnt seem to have a aps what does it use for fan proving???
so where is it then cos i recently had fan changed and boiler serviced and there were no pipes coming from fan, flue or anywhere as far as i could see and just wondered if it uses a different method of proving
or do you not know either??
The manual i looked at was for a Swiftflow 75e, but ive got to admit that i always thought that they didnt have one (cant remember seeing one)
I've just checked up on the Hot Water express 80 which was the model before and no APS fitted.L & N to fan straight from board.
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