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700T Cybex treadmill It keeps blowing the 20amp slo blow fuses on the circuit board. The brushes are fine. I did a current draw and get 3.7 amp at 3 mph without walking. When start walking (200lb) It draws about 12.4 amps. Within a couple minutes it blows the fuse. The deck and belt appears to be in good condition. Any suggestions would be greatly appreciated. Thanks... Troy

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017

  • 473 Answers

SOURCE: Microwave keeps blowing fuse

If it blows the fuse as soon as you hit the START button, it's almost certainly a shorted high-voltage capacitor.

If it blows a few seconds after you hit the START button, it's probably the high-voltage transformer. You'll possibly also smell a faint electrical burning smell from the rear vent after you shut if off.

If it blows the fuse as soon as it's plugged in, you probably have a shorted door switch, a shorted varistor, or an internally exposed wire shorting to the chassis, etc.

Posted on Nov 19, 2007

  • 9098 Answers

SOURCE: Microwave keeps blowing fuse

If it went dead almost immediately after pressing the Start pad, that\'s usually a shorted high-voltage capacitor.

If it went dead a few seconds after pressing the Start pad, that\'s usually a failing high-voltage transformer.

Here are some links with info on part testing:

You can usually find helpful exploded view diagrams and order parts by
entering your full model number here:

Please write back with your brand and model number if you need further help.

We\'re happy to help and we appreciate your thoughtful rating of our answer.

Posted on Jan 13, 2008

  • 624 Answers

SOURCE: I have a Marshall G100RCD

You have a shorted output channel. You probably see burnt resistors and very heat stressed areas of the board. That is a sign of the outputs being shorted. Unless you have experience in repaired amplifiers you will not be able to repair this yourself. If you change the burnt resistors, they will most likely burn up again. The output transistors for one of the channels are also shorted. They must be replaced along with every other bad component. If you miss just one of the bad components you will most likely burn up all the good parts you just put in. Resistors must be checked to make sure they are within the rated tolerance, capacitors must be checked for being shorted or being dry, diodes must be checked for being open or shorted, output transistors and driver transistors must be checked for being open or shorted, and the list goes on. It is a very difficult job for anybody not experienced in repairing electronics.

Take it to a reapir center that will work on those type of amplifiers, not all repair centers will.

I am very sorry to give you such bad news, but it is the problem you are having.

If you need any additonal help feel free to ask, if you decide you are going to try and fix it yourself I can tell you what to look for and how to check them, but without the proper equipment you will not be able to do this.

If you found this information helpful a rating of "FixYa" would be appreciated. The "FixYa" ratings is not just for helping you fix your equipment yourself, it is also for helping you decide if you can even fix it yourself or not.

Thanks, and I hope you find a good repair center.


Posted on Jun 28, 2008

  • 6966 Answers

SOURCE: 700t trotter cybex treadmill

Hi again,

Appreciate the direct "Ask Me".

To your concern:

  • Error 1 - No speed signal at startup. This indicates that the controller board did not sense that the motor is turning. Procedures call for checking of the belt, the SCR (triac) controller (with an analog continuity tester), the presence of 130VDC spike/startup supply (with a voltmeter) and the brushes. Since you have replaced the brushes, the others then.
Of course the above requires familiarity with electronic components and circuitry, the use of an analog multimeter and possibly soldering. Should you be uncomfortable, then perhaps as you posted, "send the complete printed circuit to be check".

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Aug 20, 2008

  • 3085 Answers

SOURCE: fuse keep blowing

When a power supply fuse blows, it indicates that the bridge rectifier is defective.

Posted on Apr 01, 2010

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1 Answer

Fuse keeps blowing immediately when switching on the treadmill, why does this keep happening?

A fuse is designed to prevent excessive current from flowing into a circuit. If the latter is not protected by the fuse, the excessive current can either cause some serious damage or the excessive current can overheat parts and perhaps result in a fire.

So, you are drawing too much current and that explains the small plume of smoke you experienced. If an electric motor runs slow because of excessive friction or load, it will use too much current, overheat and burn out the windings. Disconnect the motor and attempt to run the unit with the motor disencumbered. If the new fuse does not blow, then the problem is with the drive mechanism. If fuse blows, the problem is with the electronics and not the motor.

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There are several fuses. All are 3AG size. On the Rectifier board you need:
F1=10 Amp 32V
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F4=5 Amp, 32V
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If your fuse blows repeatedly, the circuit is drawing
too much current. Possible causes:

1) short in circuit... frayed wire, accidental circuit board contact with metal frame, solder bridge on circuit board, or wire placement/connection error

2) Too high voltage in circuit can cause excess current


TROUBLE SHOOTING: measure circuit voltage w/ meter. If normal, put amp-meter (with fuse) in circuit

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If very high, trace (look) along current path for location

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1 Answer

Fuse keeps blowing.

couple questions -
what else is on the circuit,
and what current does the oven need

there are whirlpool over-range models with
1200watts of microwave,
1500watts of convection power, a
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375watt fan

over 15amps -20amp circuit needed

if you inadvertantly replaced a higher current fuse with a 15amp fuse, it will blow every time.
the install guide reccommends 20amp
not a solution, something to check,

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