Operation Manual

Water pressure too low

Fault indication Current water pressure

e and c are lite up

Display text The water pressure in your central heating system is too low.

Solution Top up the water in the central heating system. See the documentation

for your boiler.

E-code: boiler failure

Fault indication E-code

c is lite up

Display text Boiler failure: Consult the fault table for the boiler, or for appliances

betweenthe thermostat and the boiler.

Solution UsetheE-codetondthefaultintheappliancestobecontrolled,e.g.

boiler, cascade controller or c-Mix.