7. Troubleshooting
Problem
Likely Fault(s)
Solution
The LED element on indicator
light is on but the heater cannot
achieve a suitable temperature
for hand washing (water is too
cold)
Flow rate is too high
Check the supplied flow
restrictor is fitted in the tap
The heater will not operate (no
LED element on indicator) whilst
water is flowing
Flow rate is too low
Check a minimum flow of 1.2 l/
min is delivered at the outlet.
The heater will not operate (no
LED element on indicator) whilst
water is flowing
Incoming water pressure is too
low
Ensure a minimum 0.05MPa
(0.5bar) pressure
The heater will not operate (no
LED element on indicator) whilst
water is flowing
No power to the heater
Check power supply
10
