Central heating valve not working

V4043H1056 22mm 2 port zone valve 240V
HWL3916001 Replacement actuator for V4043H
40003916-001 Replacement actuator only, for V4043H
Synchron Motor 107595


http://www.grantandstone.co.uk/heating-controls/V4043.htm £57.04 £39.12
http://www.keeptheheaton.com/acatalog/Honeywell_Diverter_Valve.html £35.63 £29.51 £9.99
http://www.discountedheating.co.uk/shop/acatalog/Online_Catalogue_Individual_Mid_Position___Zone_Valve_s_1096.html £37.50
http://www.buydirectheatingsupplies.co.uk/erol.html#2646x0&&http%3A%252F%252Fwww.google.com%252Fsearch%3Fsourceid%3Dnavclient%26q%3Dv4043h £37.50
http://www.onlineplumbingsupplies.co.uk/acatalog/Motorised_Valves.html - £33.50 inc
http://www.rkm-heating-controls.co.uk/honywell.htm - £24.15+

http://www.screwfix.com/app/sfd/sea/searchresults.jsp;jsessionid=AGL5RZCWFJXBPCJO2C4CIIQ?_dyncharset=UTF-8&q=Synchron+Motor&n=&pn=1&pd=1&pi=1&cn=1&cd=1&x=12&y=9 - - £7.99+