Low Heat Transfer Fluid (Coll.) In - IVT X Series Manual

Rectify interference
2.3.7

Low heat transfer fluid (coll.) in

6 720 643 196-06.1I
Description: The heat transfer fluid (coll.) temperature on the incoming heat transfer (coll.) fluid is below the
set protection value (-8 °C). Resets automatically when the temperature has risen 1K.
Check
1. B Start the heat transfer fluid (coll.)
pump in the manual operation menu.
B Compare the value on T10 in the info
menu with one from a separate digital
thermometer.
Do the values correspond?
2. Is the value above -7 on T10?
3. B Replace control board.
Does the error message recur?
4. There is not enough energy in the heat
absorbing system. This can occur in
extremely cold weather conditions.
Tab. 7
14
Action
yes: 2
no: B Replace sensor T10.
yes: 3
no: 4
yes: Replace I/O card.
no:
6 720 643 196 (2010/02)