Hi, my tesero cipola has only been used 3hr. since I bought it 3 years ago. I was injured at that time so I wasn't interested. I turned it on a few days ago and it worked fine. Went through battery check ok and then went silent. I could then adjust the knobs and go looking. The I tried it again and when I turned it on it beeped like normal then went to a constant loud tone like it would if I had the pin pointer on a large metal object. Constant, wont stop and the machine wont work. I tried new good alik batterys tried installing them whit the device on, off, all knobs to off, then to on. The only thing I didn't do was install the battery reversed. I disconnected the the lead coming from the coil and it still did the same thing so the prob is in the box. I cant get the tone to change by passing metal over the coil. It is a loud steady, unchanging tone. Oh, I cleaned the battery box contacts, same thing. could there be a short in the Bat Chk circuit?
Any guesses? Anybody?
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