the flow switches on these things are ****.. Ive had to replace loads even though potterton say you only need to clean..
another thing to apparently watch out for is the CH flow switches is somehow tied into the DHW flow also .. according to the helpline the DHW tells the boiler to fire and runs pump BUT if the CH flow breaks then it shuts down so not always replacing the DHW flow for hot water works... twice ive had to replace both this month for this reason..
another thing to apparently watch out for is the CH flow switches is somehow tied into the DHW flow also .. according to the helpline the DHW tells the boiler to fire and runs pump BUT if the CH flow breaks then it shuts down so not always replacing the DHW flow for hot water works... twice ive had to replace both this month for this reason..