1. The oil machine motor fuel management softwareinsulation breakage due to internal leakage;
2. Water or junction box wiring board insulation caused by decreased ability;
3. The external power input line Popi also in contact with the oil machine shell;
4. The machine internal circuits due to leakage caused by other reasons;
5. The machine does not have a reliablefuel management systemsand ground leakage protection circuit;
6. oil machine leakage, can easily cause fire and personal injury accidents, such as found in oil-leakage, must wind up immediately after stopping the leakage site and find out so completely solve the problem before being put into use again
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