Pressure relief valve
The pressure relief valve should be checked annually by twisting the cap and verifying
water is discharged and the valve reseals.
Element
Limescale can build up over time and seriously hamper the performance and life of the
heating element. Check and descale the element annually, or more frequently if the
installation is in a particularly hard water area.
Accessing the unit
8
MAX
MAX
E
MAX
E
L
E
N
MT
BT
EH
R
NE
1
2
3
4
5
Thermal cut out
Element
Thermostat