Question about Reddy R115DT Oil Filled Utility Heater

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Motor Running backwards.

I can get it to run properly by turning the motor the proper direction when starting but as soon as it stops then starts on its own it runs backward and shuts off immediatly.

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  • Anonymous Mar 03, 2009



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Flip ur wires on motors. just reverse ur polarity.

Posted on Jan 07, 2010

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My bosch 4100 lost power and the blade started running backwards. what went wrong and what parts do I need to order to fix it?

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as that is not possible unless there is a direction change switch as in a reversible drill there is a major fault in the motor windings
take it in to an appliance repair shop for a proper diagnosis and quote

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I have a Zebra 170xiIII. The feed motor runs both forward and backward. Will be running fine and I have to pause and will start running backward. Have replaced motor and same thing. What's wrong?

The DC power supply drives that motor and may start running it backwards when it begins to fail. The motor normally makes more noise than usual in both directions when it starts to fail like this.

Google "43470-002 power supply, Xi III +" and you will be able to purchase the part.

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Rear motored truck on kato ho p42 after dcc installation not working properly after period of time

I've had the same issue. I doubt it's your DCC hookup. Those motors are probably shot, and need to be replaced. I run analog, and I've had multiple motor failures with these things. These motors don't last long and, when one goes, the other one often follows... fairly soon after. I was able to prolong the motor life a little bit by orienting the motors to run the same direction. (I turned the rear truck around. I realize that's probably not possible, with your DCC in place.) I've still had motors fail, in spite of motor orientation. I've got all nine units, and six of the nine have had to have motors replaced. Some units, I've had to replace motors more than once! I haven't figured out any way to bring a motor back to life, once it starts stalling intermittently, or if it quits altogether. Sometimes, rotating the motor a tiny bit in its cradle might help, but that's a stop-gap. I suspect motor failure... unrelated to the DCC hookup.

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Well, lets see - posted problem with spinning wrong direction - had one free answer to problem - looks like I got my money's worth - It's the wind - of course - why didn't I think of...

If its a twin fan model a/c, sometimes what can happen is one of the fans is dead or not starting properly due to a failed start capacitor or the motor may be open circuit. The other fan when running creates a "vacuum" which sucks the air through the bottom ( or the other fan) which causes it to "run backwards" The suggestion from what was posted earlier ,of the wind causing it to run backwards is also possible if the start capacitor (or motor) is faulty. if the motor doesnt have the power to start up in the correct direction and the outside wind is strong enough, the fan motor can actually be "blown backwards" Hope this helps,

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Hayward Super ll Pump - shaft spins opposite direction when it is running, what can cause this?

The only way a motor for these units can run backwards is if the internal lead connections of the winding are reversed. On some rare occasions I have seen a failed start cap cause a motor to start in reverse but turning it off and on would fix that. If your start cap checks out OK and the motor is truly running 'backwards' you will need to replace it.

If on the other hand the flow is not going the correct way look into the valves and filter(s) for issues.


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Brand new honda lawnmower starts and runs fine then backfires

There should be 1 or 2 screws on the carb. You will probably have to remove the air breather to get to the screw(s). I've been seeing a lot of these types of questions, new equipment not running properly. Factory settings were not set properly.

When you find the screw(s), screw in a clockwise direction until it stops; DON'T SCREW DOWN TIGHT, JUST UNTIL IT STOPS. Then unscrew counter clockwise 1 1/4 turns. Try starting.

Continue this process, 1/4 turn at a time up to 2 1/2 full turns. If you forget where you are at on the turning process, start over by screwing back down. Then pick up process where you left off.

If you need further assistance, just let me know.


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I am having the same problem, sometimes it runs in the wrong direction, blowing the air down. Sometimes something gets tripped and I need to turn the thermostat to off and wait a bit then restart it. If I am lucky it will run int the correct direction and also will warm the house. Sometimes it send nothing but cold air to the house's forced air.

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Hobart A-200 Motor Direction

No, do not swap hot and N.

First, verify rotation. As the attachment shaft rotates, it should push the engagement pin into the keeper slot. Looking down on top of the mixer, the planetary should rotate clockwise.

If the unit runs backwards, does it start slow? Can you get it to run either way by giving it a push start before turning on the power? If so, your start switch is not working properly. (Which is my guess) Check your capacitor.

There is mechanical and electronic start switches. (Metal arms and a contact or a little gold rectangular metal can.)

Check it out and let me know what you find -- Mike

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