Vaillant MultiMatic 700/2 - Maintenance;troubleshooting; Maintenance messages

multiMATIC 700/2
Notes
10/2015 97 Training 0020228700_00
6 Maintenance/troubleshooting
6.1 Maintenance messages
Maintenance messages appear on the upper line in the controller's basic display.
In the example on the right, the maintenance
message has been triggered by the boiler
electronics.
The following is an overview of the possible
maintenance messages.
Message
Note/information
Maintenance
The controller service request is displayed. Pro-
grammed with "Menu > Installer level > Service
information > Service date"
Heat generator maintenance
The boiler service request is displayed
Low water pressure, heat generator
Low water pressure, add. module
Service ventilation unit
The ventilation unit service request is displayed
Heat pump maintenance
The heat pump service request is displayed
Low water pressure
Restricted operation
Comfort protection
Solar circuit protection active (VR 70)
The solar circuit protection temperature has been
reached or exceeded and is blocking the solar
pump.