How to replace diverter valve . Leaking diverter valve on Baxi Duo Tec / Potterton Promax 

How to replace diverter valve / 3 way valve assembly. Leaking diverter valve on Baxi Duo Tec / Potterton Promax boiler step by step
This video is for GAS SAFE ENGINEERS only, always follow manufacturer instructions.
Before to start any work on gas appliance isolate the power, turn off the gas and the waters.
Leaking diverter valve
1. Download manual
www.wolseley.co.uk/wcsstore/E...
2. Remove front cover
3. Isolate the cold water, flow and return valves
4. Drain the boiler
5. Leave open the drain point
6. Remove diverter valve.
7. Reinsert the new diverter valve.
8. Close the drain valve open the flow and return valves.
9. Re-pressurise the heating system till 1 - 1.5 bar