Honeywell 7 Day Programmable Thermostat CM707

Product Information

Up to 4 daily independent time and temperature level changes let you set 4 time and temperatures pairs to suit your lifestyle. Surface or wall box mounting options, with trunking guides and wiring breakouts to simplify installation. One of the key features of the Honeywell CM707 is its advanced scheduling capabilities. Users can set up to six different temperature settings per day, ensuring optimal comfort and energy savings. This thermostat also has a vacation mode, which allows users to set an energy-saving temperature while they are away. The problem i have is that the radiators downstairs are constantly on regardless of whether or not the thermostat is on manual, auto, or off. This started happening out of the blue yesterday. With its programmable functionality, the CM707 gives you the flexibility to create customized heating schedules that suit your lifestyle. By setting specific time periods and temperatures, you can ensure that your home is always at the optimal temperature when needed, helping to save on energy costs.

On the boiler it is set to the Hot Water and Radiator mode, which it has always been. I have removed the batteries from both CM707's but it still carries on heating. It is like it is ignoring the downstairs Thermostat and just constantly heating the radiators.

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In terms of compatibility, the Honeywell CM707 is compatible with most heating and cooling systems, including gas, oil, and electric systems. It also supports both 24-volt and millivolt systems. Can be adjusted up to 3 oC (default is 1.5 oC) to provide better temperature control (less overshoot). The normal upper temperature limit of 35 oC can be reduced down to 21 oC to save the homeowner energy. The CMT707 Programmable room thermostat is a very easy to use and allows control of the time and temperature within your building.The CM707 has a large,clear LCD dispaly and is compatible with most combi boilers and heating systems* Two wire volt free connections are ideal for use with Combi boilers. Honeywell CM707 Programmable Thermostat (7 Day) Features:

Installer Set-Up Mode allows extra functions to be set at the discretion of the installer to match the consumers applications and needs: Holiday button provides energy savings by reducing the temperature from 1 to 99 days when people are on holiday, returning to normal operation (AUTO or MANUAL) on the day of their return.

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When enabled the Pump Exercise will switch the relay on for 1 minute at 12:00 if the relay has not been switched on since 12:00 the previous day. I have an issue with my heating and wondered if anyone could help/know of anything to try before i call someone out. I have an Ideal Combi 35 boiler and 2 Honeywell CM707 Thermostats, one upstairs, one downstairs, each controlling their own set of radiators. All around a year old. Temporary programmed temperature override to temporarily override the programmed temperature till the next switch point.