1
Press the Thermostat screen. If screen does not
illuminate then replace batteries.
Battery Replacement:
Un-clip the thermostat from its cradle by sliding the
thermostat upwards.
Using a flat bladed screwdriver pop off the rear cover
Replace batteries
Refit battery cover
Batteries should operate for approximately 18 to 24
months. Only good quality alkaline batteries are to be
used.
2
If warning triangle is shown then press it.
If “Zone 1 Fault” shown refer to Location Guidelines (opposite).
If “Boiler Fault” shown, check boiler display and refer to boiler
installation manual.
3
If Time / Day at top left of display is incorrect, change by pressing
“Menu” > “Help & Settings”.
4
If Central Heating will not switch on check Target Room
Temperature is at least 1°C greater than Actual Room Temperature.
If not press radiator symbol at bottom left of screen until “On” is
highlighted then rotate outer ring clockwise.
If Central Heating will not switch off press radiator symbol until
“Off” is highlighted.
5
Check power to boiler is on (boiler display should be on).
6
If boiler transceiver left hand RF light is off, refer to Location
Guidelines (opposite).
7
Ensure boiler Mode Knob is in Winter position.
8
If the fault persists then isolate the boiler, remove 1 thermostat
battery and repeat Quick Start Guide instructions from Step 8 (see
front page).
TROUBLESHOOTING
