shower running cold

[thomo27]

Morning all
System-combi sealed
boiler - baxi 28he platinum
fault - water from shower runs cold after about 1 minute.
Water from all other taps runs hot and the heat is maintained.
If I stop the shower and run the hot bath tap until the water is hot the shower then runs hot for another minute.
I monitored the boiler whilst running the shower and at the start it shows the ignition light going on and off and then once it runs cold there is nothing from the boiler no light no switching sounds

 

[AngelesPlumbing]

What kind shower you have? Thermostatic? Or pics

 

[thomo27]

Thermostatic

 

[AngelesPlumbing]

Thats the problem

 

[thomo27]

Thats the problem

Can you be a bit more specific lol

 

[HERTS P&D]

Cartridge.

Andy

 

[thomo27]

Cartridge.

Andy

3460250, member: 140646"]Cartridge.

Andy[/QUOTE]
Discontinued for my shower which is a mira combiflow built in to the wall
is there any known alternatives that can be fitted or is it a new shower??

 

[thomo27]

Just a heads up..
No fault with the cartridge..the issue was resolved by removing the flow restricter from the hot inlet filter..