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Hot water zone of 4 zone system not operating

casualguy · 2016-11-04 22:15:53

Hi, all my rads in 3 zones are working properly, but the 4th zone for the hot water doesn't heat the water in the hot water cylinder. The cylinder is upstairs & the pump for the 4th zone to send water up seems to be a small bit hotter than the other 3 pumps. I checked if the shaft is spinning inside the pump when switched…

04-11-2016 11:15PM

#1
casualguy

Registered Users, Registered Users 2 Posts: 42 ✭

Join Date: April 2016

Posts: 31
Hi, all my rads in 3 zones are working properly, but the 4th zone for the hot water doesn't heat the water in the hot water cylinder.
The cylinder is upstairs & the pump for the 4th zone to send water up seems to be a small bit hotter than the other 3 pumps.
I checked if the shaft is spinning inside the pump when switched on & it is.
Apart from a small bit of the pipe exiting the pump been hot, the rest of the pipe is cold. The 2nd pipe alongside the pump is cold as well, again a bit away from the pump location.
Is this because of a lack of water in the system? And that the cylinder is upstairs?
Thanks in advance for any help.

Tagged:

boiler

pump

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