12
6.3. Operation
To turn the product on/off, press the red switch on the front of the product. A light will
come on when the product is switched on.
To adjust the temperature, use the temperature dial located next to the on/off switch. To
increase temperature turn the dial to the right. To decrease the temperature, turn the dial
to the left.
7. TROUBLESHOOTING
WARNING:
Disconnect electric supply before removing or repairing any electrical
equipment or covers over electrical equipment.
FAULT
POSSIBLE CAUSE
REMEDY
No hot water
1. Mains supply off.
2. Strainer in pressure
reducing valve blocked.
3. Pressure reducing valve
incorrectly fitted.
1. Open stopcock.
2. Turn water supply off,
remove strainer and clean.
3. Re-fit correctly.
Water from hot
taps is cold
1. Not switched on.
2. High limit thermostat has
tripped.
1. Switch on the product.
2. Check and reset.
Intermittent water
discharge through
tundish on warm-
up
1. Expansion vessel has lost
its charge pressure.
1. Turn off stopcock, open
a hot water tap, check
vessel charge pressure and
recharge
Continuous water
discharge
1. Pressure reducing valve not
working.
2. Expansion relief valve not
seating correctly.
3. Temperature and pressure
relief valve not seating
correctly.
1. Check pressure from
pressure reducing valve
if greater than 0.3 MPa
replace cartridge.
2. Manually lift the valve once
or twice to clear any debris
from the seat otherwise
replace valve.
