On Fri, 14 Nov 2003 14:49:55 +0000, Richard 3rd wrote:
The two most likely causes are
1) Scaling of the secondary heat exchanger.
2) Over reading primary temperature sensor. (likely an NTC themistor).
Is this a Vokera Linea (24/28/+)? with 2 digits on the front panel?
If the flow pipe temperature in CH mode is very much less that the
display indicates then suspect (2) above.
The temporary workaround is to reduce the temperature on the HW knob this
may then mean that can only get a luke warm flow - but by experimenting
you may find a good enough optimal setting and can live with it until
you are ready to repair.
Ed Sirett - Property maintainer and registered gas fitter.
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