Worcester Bosch Wireless Programmable Room Thermostat Comfort II RF 7733600002

The Worcester Bosch Greenstar Comfort II RF is a wireless programmable room thermostat supplied with a plug-in RF receiver. The receiver plugs into the boiler while the thermostat communicates with it by radio frequency, so every control function is reached from one accessible position in the home. It forms part of the Worcester Bosch Greenstar controls range and allows six adjustable heating temperatures to be set per day through a short, simple menu structure.

• The boiler does not respond to a heating demand from the thermostat, or runs when no demand has been set.
• The thermostat loses its RF link to the receiver, giving intermittent or no communication.
• The display is blank, unreadable, or the buttons do not register presses.
• The unit stays locked on one schedule and will not accept changes to the daily temperature settings.
• The plug-in receiver no longer switches the boiler after the thermostat has called for heat.

• Confirm the part number 7733600002 against the existing control or the boiler's documentation before ordering.
• Check the alternative numbers listed below, as the same control may be referenced under more than one code.
• Check the boiler end of the installation is suitable for a plug-in RF receiver before replacing an existing wired control.