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Symptom
Blank Display (Power Loss).
Display shows flashing
symbol.
Display shows
symbol.
When setting my program the
following is displayed --:-- --.-
The symbol is displayed but the
boiler is not firing.
How do I change the batteries on the
thermostat when they run out?
The thermostat constantly monitors the battery
power level, which typically lasts for about 2
years before needing replaced. When the power
is running low a flashing
displayed on the screen. To change the batteries
follow the steps in the above section ('STEP 1:
Installing the Batteries' on page 3), replacing
the used batteries with new ones in Step c.
Note: While changing the batteries your program
settings will be stored but you may need to adjust
the time settings to be correct.
TROUBLESHOOTING THE CMR707
Remedy
Check batteries are installed by removing the battery
cover.
Check batteries have been installed in the correct
orientation.
Replace the batteries.
The batteries in the thermostat are low on power
- Replace the batteries.
A fault has occurred in your heating system. Remove
and re-insert the batteries.
If the
contact your installer.
The time period has been disabled, to enable see
'Disabling / Enabling Time Periods' on page 4
This may be due to the internal controls of the boiler.
How do I set one temperature for the
whole day?
To operate as a simple thermostat with one
temperature throughout the day, select the
manual operating mode by pressing the
symbol will be
MAN button. Adjust the temperature by
pressing the
set anywhere from 5°C to 35°C in 0.5°C steps.
The thermostat will continue to maintain this
temperature until another operating mode is
selected or the temperature is adjusted.
symbol does not clear after a few minutes
or
buttons - this can be
FAQ's
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