Found this for you , amazing what you can do using Google search.
Diana
http://www.knowhere.co.uk/Kettering/Northamptonshire/Midlands/messages?start=6
I recently purchased a 2.0 KVA Haverhill generator and I am looking for someone to assist in servicing this unit, perhaps an ex employee of the company, with servicing knowledge, could contact me and help with my problems. Thanks
Re: Haverhill Generators by phil (Member 10120231) on 18-Mar-2004 ref your haverhill gen,if you still need help get in touch. ex service engineer
Re: Haverhill Generators by stuart sharples (Member 10125393) on 28-May-2004 I Have recently purchased a Haverhill Generators Battery charger unit type LWA 100 it has 12 or 24vdc switched output rated at 15 A for 12v and 13A for 24V the genny gives out 12 and 24v but the control board appears to be dead does anyone know of an ex service engineer or anyone with circuit diagrams for the voltage regulator board
Best regards and heres hoping Stuart
Re: Haverhill Generators by phil (Member 10120231) on 5-Nov-2004 Stuart I have diagrams for most of the haverhill units if you still need them.phil@clar50.freeserve.co.uk