11
B 270-22-F+CRN 20-3 - 7009065_
UK – 27.09.2017
Check the temperature setting for the water supply. Maximum water temperature is 70°C/158°F?.
-ATTENTION: Before it is possible to reset the system it must cool down to below 80°C/176°F. This may
take 15-25 minutes
Reset the unit. Turn the Switch
POS. C
fig 5.1 into “0” position for 5 seconds. The unit will start when there
is water consumption
Follow the instruction at the display to set it back to the home screen, fig. 5.2
High motor temperature – pump has been overloaded – reduce load.*
If the failure has been one of the above and the problem has been solved. Reset the unit. Turn the Switch
POS. C
fig 5.1 into “0” position for 5 seconds. The unit will start when there is water consumption.
5.1.4 Other faults.
Read the display and consult the Grundfos manual which were delivered together with the equipment.
If this do not solve the problem Contact a service technician.
