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This guide is for homeowners and heating engineers who use Worcester Bosch boilers and need to understand the function and use of the Charging Key Assembly (part number 87161045910). This assembly allows you to manually top up the water pressure in your central heating system, ensuring optimal performance. Remember that any work on boiler components must be carried out by a certified Gas Safe engineer.
| Model Part Number | 87161045910 |
|---|---|
| Brand | Bosch |
It is used to manually top up the water pressure in your central heating system.
Installation *must* be carried out by a Gas Safe registered engineer.
Contact a Gas Safe registered engineer to check for leaks and re-pressurize the system if necessary, using the Charging Key Assembly.
Yes, it is designed to be removed after use to interrupt the connection.
The part number (87161045910 in this case) is usually found on the boiler's data plate or in the user manual.
Turn off your boiler and contact a Gas Safe engineer immediately.
Check for leaks in the system. Contact a Gas Safe engineer to inspect and repair any leaks. The charging key may be needed to re-pressurise the system after repairs.
Contact a Gas Safe engineer. High pressure can indicate a problem with the expansion vessel or other system components. Do not attempt to adjust the pressure yourself.
Do not force the key. Contact a Gas Safe engineer to inspect the filling loop and replace the key if necessary.
Compatibility:
This Charging Key Assembly is specifically designed for Worcester Bosch boilers. Ensure that the part number (87161045910) matches your boiler's requirements.
Installation:
Care:
