P
Plumb Logic Ltd
I have recently linked 2 no. Glow Worm Flexicom 30sx boilers and connected them via 35mm pipe work to a low loss header to serve an under-floor heating system in a large, new build, domestic property.
The boilers have both been suffering with a reoccurring F9 fault code which is taking them out of action at the same time. The client is currently resetting the boilers twice a day.
Glow Worm sent an engineer out who changed the pressure sensors on both boilers which made them work for approx 1 week before the fault started to reoccur.
I was skeptical about this fix as the heating system is newly installed, has been flushed and these two boilers only serve the under-floor heating.
Glow Worm sent out another engineer today who has said that the problem lies with the flow rate of water through the boilers.
Basically he thinks that the water is passing from the boilers and through the low loss header so quickly that the sensors in each boiler aren't detecting a pressure rise and are going to F9.
He has then simply closed the return isolation valve down on each boiler slightly in an attempt to "throttle" down the flow rate.
Does this conclusion and solution from the second engineer sound correct ?
Any advice much appreciated.
The boilers have both been suffering with a reoccurring F9 fault code which is taking them out of action at the same time. The client is currently resetting the boilers twice a day.
Glow Worm sent an engineer out who changed the pressure sensors on both boilers which made them work for approx 1 week before the fault started to reoccur.
I was skeptical about this fix as the heating system is newly installed, has been flushed and these two boilers only serve the under-floor heating.
Glow Worm sent out another engineer today who has said that the problem lies with the flow rate of water through the boilers.
Basically he thinks that the water is passing from the boilers and through the low loss header so quickly that the sensors in each boiler aren't detecting a pressure rise and are going to F9.
He has then simply closed the return isolation valve down on each boiler slightly in an attempt to "throttle" down the flow rate.
Does this conclusion and solution from the second engineer sound correct ?
Any advice much appreciated.