The most important thing for us is checking the system is safe to use.
On a unvented cylinder service we carry out the following:
Strip out line strainer and clean - this stop any incoming debris coming into your system.
We checks for any signs of leaks - crusting around pipework shows previous leaks.
check and top up pressures in the expansion vessels / internal air gap (A very important part) -if you don't have the system serviced annually, this is the main reason for faults to happen on unvented cylinders.
check safety relief valves operating safely.
checking for installation errors (Happens all to often).
check hot water temperature corresponds to dual stat.
top up pressure on heating side (if applicable).
check flow rates.
make sure electrics are safe and working correctly.
fill in the service log book.
If your hot water cylinder isn't serviced annually then you could actually be damaging the system and cause potential issues with the system.
You can call or message us to book in a service or repair on your Kingspan tribune cylinder - 07904536661.
why is water flowing through my tundish on my unvented cylinder? This post explains some issues your unvented hot water cylinder could be experiencing.