Set Appliance State:

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

The maximum DHW temperature can be limited on this appliance, this may have been done for safety reasons.
Enter the installer mode and access level 5 - A2 for the maximum DHW temperature.
(click here for information on how to do this)
Is the maximum DHW temperature set to a high enough maximum for the flow rate and temperature requirements?
Note:
The default maximum is 60°C but it may have been reduced.