What is the make and model number of your unit, please?
Ok what you need to do is follow the testing proceedures on page 19 of the service manual. Run these tests and let me know what you come up with.
I have uploaded the manual to a free server for your retrieval. Please click here to go to the files download page. Once you are there click on the free button to the lower left of the page. This will begin a timer that you will have to wait for to count down to zero (usually 30 seconds).Once it has finished you will be shown a download icon to click on and the download will begin. Save the file to your desk top folder so it is easy to find. You will need a .pdf reader to open the file. I recommend FoxIt reader rather than Adobe Reader. Both are free for personal non commercial use. If there is something in the manual that you do not understand, please let me know and I will walk you through the proceedure, or explain it in terms you can understand.
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Best regards, XXXXX XXXXX Smithy
Yes I am aware of that. What you need to do is run the complete set of tests as outlined on page 19. Check that each test performs as it is supposed to. If you find any that do not then refrence the appropriate page in the disassembly pages further on in the manual.
Thank you for the accept.
Best, XXXXX XXXXX Smithy
You can continue to ask follow up questions if you like.