Don't forget the other 'well-known' scenario of a pump motor turning like a train but with the impeller fallen off the end of it. Result: it's not a pump any more! Some Pumas seem to be very 'slow on the uptake' when starting from cold. I've never had enough time to work out exactly what happens but the symptoms are overheating and lock-out although the pump is turning. Put your hand on the flow pipe while the boiler fires up and see how far down the heat gets before it locks out.
anyway, i just pulled the spindle out and by using the finger tips of two fingers the spindle did rotate quite easily.
i also turned the ch on then off at the timer and the pump did continue do its job as you stated.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local