Question about Black & Decker 19" Electric Lawnhog Mulching Mower with Rear Bag

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B&D CMM1000 Mower

My mower is great! After several years of use it now shuts off after about 5 minutes of use. If I let it sit a few minutes it will run again. I recently replaced the batteries thinking that this may be the problem. The mower is much more powerful with the new batteries but it still has the problem of shutting off after a few minutes of use. The motor is not hot and nothing seems to be overheading. Suggestions? I bought the mower as a reconditioned unit.

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  • Anonymous Jun 14, 2008

    I have a CMM1000 mower as well. Just recently when I attempted to start it after it was charged it would not start. I banged the rear wheels of the mowers and it started but it seemed to run slow. I stopped it and started it up again and it ran normal. After doing this a couple of other times the mower now will not start at all. I have opened the top cover and looked at all of the connections and they are all solid. Not sure what the problem is. Any other suggestions on what I should do to resolve this?

  • dthomp15 Jul 08, 2008

    Yup! Cuts off after running for awhile. Seems to be related to the load on the motor (LENGTH of grass.) After an half minute or less, it will start again. You can hear a slight "click" of a breaker resetting. After this has happened several times, the time before it stops shrinks and the length of time to reset gets longer. Frustrating. Let it rest for an half hour and the time intervals become more tolerable. Still not the pleasurable experience we had last year.

    I have not taken it apart to see if there is a circuit breaker accessable for replacement...but will soon. Any info would be appreciated.


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Convert your mower to cmm1200. you needs parts 905058-81 to convert it.this to elliminate the circuit board & it's easy to install just follow the instruction. circuit board was on recall depend on the date code of the mower it is also no longer available.
good luck.

Posted on Jun 02, 2008

  • mr aicnelav Jun 02, 2008

    correction on the parts # 905231-38 service convertion kit.

  • mr aicnelav Jun 19, 2008

    check if the switch cable in not kink,pinch or damge. it will affect big time not to start properly.


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