27
Maintenance
Troubleshooting
Measured values of the
storage tank temperature are
incorrect
Storage tank temp.
Measured values wrong
Causes: plug contact, sensor
cable, control, storage tank
temperature sensor.
After rectification of the
malfunction it must be
acknowledged by pressing the
‘Arrow’ button.
Boiler temperature too low
Boiler temperature
too low [
C] ###
Causes: plug contact, cables,
non-return valve, actuator,
control.
After rectification of the
malfunction it must be
acknowledged by pressing the
‘Arrow’ button.
Exhaust fume temperature too
high
Exhaust fume
temperature
too high [
C] ###
Cause: because of a too long
fuel adding procedure or open
gas vent flap, the exhaust fume
temperature has exceeded 300
C.
For rectification, refer to the
operating manual.
Work on the electrical
equipment may only be
carried out by a specialist
after disconnecting the
installation from the mains!
Summary of Contents for 40S-70
Page 27: ...23 Commissioning Circuit diagram ...
Page 29: ...24 Commissioning Short operating instructions ...
Page 31: ......
Page 35: ...28 Notes ...
Page 38: ......
