How to mend Vaillant Vcwgb 282eh

how do I rectify the fault as detailed below?

my vaillant boiler is saying a code com on it ?

Vaillant 828E - no hot water?

how to fix water pressure its down at bottom of grey part?

Boiler over pressure on the hot-water side?

Advice?

Vailliant turbo max plus 824e?

Vaillant igniting issue ( domestic ) not CH?

Vaillant F22 fault?

No hot water, intermittent when air temp drops?

can i replace my Potterton EP2 2 way programmer with a Center EHE0200361 RF?

Vaillant ecotec 831 plus?

How do I fix f22 error on my Vaillent Ecotec Plus boiler?

Vaillant Thermocompact Fault?

vaillant ecoTEC plus boiler fault code - how to fix?

Vaillant eco plus 531 boiler?

Vaillant condensing boiler ecoTEC plus?

Valiant thermostat , BMU-Err ?

my boiler will no work?

Hot water comes and goes!?

Vaillant Ecotech Plus 831 F22 fault?

Vaillant ecomax 828/2 e water pressure sensor?

how do I vent the heat exchanger?

Valliant Eco tec 28?

What does f.25 mean?

Vaillant vcw gb242 eh central heating problem?

Problem with the pressure in combi boiler?

Vaillant ecotec plus 630?

Vaillant VCW-Sine18 T3WFH Lights but then goes off after 5 Min?

Why is heating on at night?