Wittmann Tempro basic C 90 Translation Of Original Operating Manual page 31

Inspect the distributing main after the service jobs have been completed. At least
visually, it must be in perfect condition and there must not be any worn or bent
parts.
If the limiter (1) release (Led
cooled down.
Open bolt lock (3), open cover (2), remove side panel and press the reset button
(1A) to the stop. The contacts snap audibly back to their initial positions.
Make sure to detect the reason for release because the limiter normally will not
switch off!
Possible reasons for release of safety temperature limiter
§ Sensor defective
§ Short circuit at heating element
§ Level switch defective and/or insufficient water in tank
§ Control error
§ Valves defective
§ Remote line of safety temperature limiter is damaged (leak)
The limiter can also be tripped at temperatures which are too low.
(During storage or transport below 5°C). Allow the equipment to reach room
temperature and than press the Reset button.
Tempro basic C 90 & Tempro primus C 90
flashes), it can be reset after the stabilizer has
BASIC & PRIMUS C90 V 3.0 english / 10.04.2012
Page 31