What to do if Worcester Control Unit is not connected?
If your Worcester Control Unit displays error 1009 indicating that it is not connected, it means the wireless device is not connected. Disconnect and reconnect all wireless devices.
What to do if Worcester Control Unit displays a blank screen or low battery symbol?
If your Worcester Control Unit's display is blank or shows a low battery symbol, it means the batteries are depleted. Replace the batteries to fix this.
What does error 1007 mean on Worcester Comfort+ II RF Control Unit, and how to fix it?
Error 1007 on your Worcester Control Unit indicates that there is no wireless signal. To fix this, check the signal strength and reposition the control unit in a better location.
What does error 1017 mean on Worcester Comfort+ II RF, and how to fix it?
Error 1017 on your Worcester Control Unit means the system pressure is too low. You should fill the system to resolve this issue.
What does error 1009 mean on Worcester Comfort+ II RF Control Unit, and how to fix it?
Error 1009 on your Worcester Control Unit indicates a lack of wireless signal or a failed connection. You should reconnect the wireless device.
How to fix Worcester Control Unit error 1010 no communication with heat source?
If your Worcester Control Unit displays error 1010 indicating no communication with the heat source via EMS-BUS, it means there's a communication problem even though the heat source is EMS compatible. Try replacing the EMS connections or interfaces.
What to do if Worcester Control Unit says maintenance overdue?
If your Worcester Control Unit displays error 1072 indicating maintenance is overdue, it means that maintenance is overdue by 14 days. Inform the installer that maintenance is overdue.
What to do if Worcester Control Unit says maintenance due on?
If your Worcester Control Unit displays error 1070 indicating that maintenance is due on a specific date, it signifies that maintenance is approaching. Inform the installer that maintenance should be carried out within the next 30 days.
What does Worcester Control Unit error 309x mean?
Error 309x (where x is the number of heating circuit) on your Worcester Control Unit indicates that the control unit temperature sensor is faulty because it is outside the permissible range. Replace the control unit.
What does Worcester Comfort+ II RF Control Unit error 1071 mean?
Error 1071 on your Worcester Control Unit indicates that maintenance is now due. The hardware maintenance is due. Notify the installer.
Explains warning signal words and symbols used in the manual.
Provides essential safety guidelines for users and describes the intended use and risks.
Describes the control unit as a room-dependent controller and its features.
Details how to install the Key in the heat source, including electrical safety precautions.
Provides guidance on installing the control unit, including placement and wireless range.
Details the elements shown on the control unit's standard display screen.
Explains how to view and set room temperatures for different operating modes.
Describes how to activate and deactivate the control unit's key lock function.
Guides on setting heating schedules and temperatures based on time.
Explains how to set the domestic hot water (DHW) heating schedule.
Details the procedure to disable specific heating or DHW switching times.
Describes how to reset the heating or DHW time programs to factory defaults.
How to adjust the desired temperature settings for heating and hot water.
Instructions for setting a holiday period to manage heating/DHW automatically.
How to access information like system pressure, outdoor temp, DHW, and signal strength.
Covers adjusting language, time, date, format, sensor calibration, contrast, and resetting settings.
Accessing system configuration data and heating circuit assignments.
Restoring all control unit settings to factory defaults.
Setting maximum flow temperature and control type for heating efficiency.
Accessing fault history and setting service reminders.
Displaying installation date, controller, and base station software versions.
Pairing and unpairing wireless components like the Key and control unit.
Configuring heating curve parameters for weather-compensated control.
Details pairing procedures for wireless components with the Key.
Lists common fault codes, their causes, and recommended actions for resolution.
Instructions on how to replace batteries in the control unit and safety warnings.
The Comfort+ II RF is a programmable, wall-mounted control unit designed for radio-controlled remote control of heating systems, paired with a Key that integrates into the heat source. This system is ideal for heat sources that are difficult to access, as all programming and adjustments can be conveniently made from the living space.
The Comfort+ II RF control unit acts as a room temperature-dependent controller, capable of operating as a weather-compensated wireless controller when used with an optional outside temperature sensor (wireless or tethered). Its primary function is to control a heating system via radio remote control, managing both central heating (CH) and domestic hot water (DHW) heating through a modulating heating controller. The modulation feature enables intelligent communication with the heat source, ensuring the desired room temperature is achieved as efficiently as possible. This intelligent control helps save fuel and money by minimizing temperature overshoots and allowing the burner to stop shortly before the target temperature is reached.
The control unit allows for up to six switching times to be set in both the central heating and DHW programs, offering flexible scheduling. The Key, an integral part of the system, communicates wirelessly with the control unit and is installed directly into the heat source. It features an LED to indicate various operating conditions, such as fault states, pairing mode, and normal operation.
The user interface of the Comfort+ II RF is designed for ease of use, featuring a display that shows temperature, time, date, heating and DHW status, fault codes, and menu symbols. A rotary push-button knob allows for selection, confirmation, and navigation through menus. Dedicated keys for DHW, Advance, and Menu provide quick access to specific functions.
The control unit offers several operating modes for heating and DHW:
Users can easily view and adjust the setpoint room temperature. In "Auto" mode, pressing the selector displays the setpoint. In "On" mode, it shows "Permanently" and the set permanent room temperature. In "Off" mode, it displays "Permanently" and a 5 °C temperature, indicating frost protection is active. The room temperature can be adjusted by turning the selector, with the new temperature flashing for three seconds before being applied.
The control unit allows users to set detailed time programs for both heating and DHW. Up to six switching times can be configured for each, defining temperature changes or DHW activation/deactivation throughout the day and week. These programs can be set for different time periods (e.g., Mo-Fr, Sat-Sun, individual days). Switching times can also be deactivated if not needed.
A "Holiday" program allows users to set a start and end date for a holiday period. During this time, heating and DHW are switched off, with frost protection active to prevent freezing. The system automatically reverts to normal operation at the end of the holiday. This program can also be cancelled if plans change.
The "Info" menu provides useful system information, including:
The "Adjust" menu allows for customization of various settings:
To prevent unintentional changes, a key lock feature can be activated by simultaneously pressing and holding the select heating key and selector. "Key lock" will be displayed, and interaction with the control unit will be disabled until the lock is deactivated using the same key combination.
The Comfort+ II RF control unit and Key require minimal maintenance, primarily focusing on battery replacement.
The control unit displays a "low battery" symbol when the batteries need replacing. Users have approximately 60 days to replace them before programmed settings are lost. The control unit uses LR6/AA 1.5 V Alkaline batteries. To replace them, a flat-head screwdriver is used to open the locking device on the underside of the control unit, allowing it to be released from the wall socket. New batteries should be inserted, ensuring correct polarity, and then the control unit is re-fitted into the wall socket. Used batteries must be disposed of according to environmental instructions.
The casing of the control unit can be cleaned with a dry cloth. Cleaning agents or solutions should not be used.
The system includes maintenance reminders that are visible in the installer menu. These reminders indicate when hardware maintenance is due, overdue, or next scheduled, providing a contact number for the installer. For council housing tenants, this feature allows a date to be set for annual service/maintenance, displaying a reminder 30 days prior and showing a contact telephone number. If the service display is not cleared by an engineer, the control unit will limit the room temperature 14 days after the maintenance date to a reduced set value.
General| Display | LCD |
|---|---|
| Temperature control range | 5°C to 30°C |
| Power supply | 2 x AA batteries |
| Mounting | Wall-mounted |
| Control Type | Programmable |
| Compatibility | Worcester Bosch boilers |
| Type | Wireless Programmable Thermostat |
| Communication | Radio Frequency (RF) |
| Features | Frost protection, Holiday mode |
| Range | Up to 30 meters |
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