Worcester Bosch Greenstar 30 Cdi Conventional - Repressurise/Recharge??

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12 Jan 2017
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Hi all

I was hoping you can help me, My CH rads aren't all fully warming up - 2 in particular remain luke warm whereas others are piping hot.

I've bled the rads with some success, but it didn't solve the problem fullly and I have also rebalanced the system, which was successful, but when the heating went off, on the next cycle, the same rads were once again luke warm. I am pretty confident that one of the rads is the last one on the 'run' but not sure where the other one is in the sequence.

The boiler is serviced annually, and a power flush done every three years.

Some searches have suggested repressurising the system and the (not very detailed) user manual states that the system may need 'recharging' but gives no further advice on how to do this.

The boiler has no pressure gauge/dial on it and there is no key (although a marked spot for one on the removable cover)

So, I guess the point of this is to establish if the boiler I have does need pressurising, and if so, how do I do this? Internet searches haven't brought up anything that I can confidently use.

Many thanks for reading.
 
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