State Water Heaters SCE 65-400, Installation, User And Service Manual, Page: 60 / 72

is
Release R.1.0 Uk 60
Warning
Maintenance may only by carried out by a service and maintenance engineer.
8.4 Fault table 'insufficient hot water'
If the appliance is not supplying enough hot water, this can have a variety of causes.
If this is the case, consult
’Table 8.3 Insufficient hot water’
Table 8.3 Insufficient hot water
Characteristic Cause Measure Observation
Insufficient hot water Set water temperature
(T
set
) too low
Set the control thermostat to a higher position. See paragraph
’5.5 Control thermostat’ .
Hot water supply used
up. 1. Reduce the amount of hot water that you use. Give the
appliance enough time to heat up the water.
2. If this fault occurs regularly, then check whether the maximum
thermostat is switching. If this is the case, then check that the
circulation- and/or shunt pump are working properly.
If the fault has not been rectified and nor can a cause be
determined, then disconnect the appliance from the mains, shut off
the gas valve and warn your installer.