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Maytag mdbh955aww field test says high current motor. does that mean the motor is bad or could it be the start capacitor. one tec said it was the board? so why the field test says motor current?

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MYyork mts45sbad46/240 chillar compassor going to high ampere

could be low voltage causing the high current
could be a failed start/run capacitor causing the extra current draw
could be a failed compressor motor
check the utility power incoming voltage into the house or premises
if it is a 3 phase unit in commercial application , check all phase circuit breakers as one may have dropped out
Call out an electrician to check the capacitor and run tests on the motor .

Sep 05, 2015 | Cars & Trucks

1 Answer

How torque develops in motor?

The start capacitor on the motor develops the needed extra torque to start the motor. It adds current to the start winding which increases the magnetic field inside the motor.

Nov 02, 2014 | Air Tools & Compressors

3 Answers

I turn key and starter spin but will not engage flywheel.

You have one of two problems: Either the starter drive on your starter is defective and is not engaging the flywheel to crank the engine, or the flywheel has some broken or damaged teeth that are preventing the starter from engaging.
Starters come in a variety of designs. On some, the solenoid is mounted on top of the starter. When you turn the key, the solenoid routes current to the starter motor and at the same time pulls a lever that slides the drive gear mechanism out so it will engage the flywheel and crank the engine. If the solenoid is weak or damaged, it may not be strong enough to overcome the spring tension that retracts the drive gear. So the starter spins but doesn't crank the engine.
On other starters, the solenoid is mounted remotely. When the starter motor starts to spin, it ratchets out so the drive gear will engage the flywheel and crank the engine. If the drive mechanism is damaged or hung up, the motor may spin but not crank the engine.
Regardless of what type of starter you have, it will have to come out for further inspection. The drive gear (which is sometimes referred to as a "Bendix drive") should move out when the starter starts to spin. The drive gear usually has a one-way clutch that is supposed to protect the starter against damage if someone keeps cranking the engine once it starts. The gear should turn one way but not the other. If the gear is locked up or turns freely either way, the drive is bad and needs to be replaced. If the drive can't be replaced separately, you'll have to replace the entire starter.
Starter Testing If the drive seems okay, the starter should be "bench tested" using jumper cables or special equipment designed for this purpose.
CAUTION: Be careful because a starter develops a lot of torque. It should be held down with a strap or clamped in a vice (be careful not to crush or deform the housing!) before voltage is applied.
A simple no-load bench test can be performed with a battery and a pair of jumper cables to see if a starter motor will spin. But this test alone won't tell you if the starter is good or bad because a weak starter that lacks sufficient power to crank an engine at the proper speed (usually a minimum of 250 to 500 rpm) may still spin up to several thousand rpm when voltage is applied with no load.
A better method of determining a starter's condition is to have it tested on equipment that measures the starter's "amp draw." A good starter should normally draw a current of 60 to 150 amps, depending on the size or power rating of the starter. Some "high torque" GM starters may draw up to 250 amps, so refer to the OEM specifications to make sure the amp draw is within the acceptable range.
If the starter does not spin freely, or draws an unusually high or low number of amps, it is defective and replacement is required.
An unusually high current draw and low free turning speed typically indicate a shorted armature, grounded armature or field coils, or excessive friction within the starter itself (dirty, worn or binding bearings or bushings, a bent armature shaft or contact between the armature and field coils). The magnets in permanent magnet starters can sometimes break or separate from the housing and drag against the armature.
A starter that does not turn and draws a high current may have a ground in the terminal or field coils, or a frozen armature.
Failure to spin and zero current draw indicates an open field circuit, open armature coils, defective brushes or a defective solenoid.
Low free turning speed combined with a low current draw indicates high internal resistance (bad connections, bad brushes, open field coils or armature windings).

Jul 27, 2012 | 2005 Ford Taurus

1 Answer

With the tec b472 qq ..i get mesage RC000;W-13807 DO U KNOW WHAT THAT COULD MEAN ..THANKS

this means that you have a field missing in your label definition.
Ypu must have a PC000;XXXX,XXXX,etc field defined first

Feb 04, 2011 | Toshiba TEC B-472 Thermal Label Printer

1 Answer

How to change a starter

Starter - There are like 2 or 3 bolts on most starters that are long and go into the engine block. Then there is the electrical positive connection which should be removed only after the battery has been disconnected to avoid shock and fire caused by a short in the electrical system when disassembling or assembling (warning: this a safety measure designed to keep you from hurting yourself or the car). Assembly is the reverse of the removal.
TESTING No-Load Test Make the connections as shown in the illustration. Close the switch and compare the rpm, current and voltage readings with the specifications found in the chart located in this section. Fig. 1: Proper connections for the starter no-load test 87952035.gif
  • Current draw and no load speed within specifications indicates normal condition of the starter motor.
  • Low free speed and high current draw indicates worn bearings, a bent armature shaft, a shorted armature or grounded armature fields.
  • Failure to operate with high current draw indicates a direct ground in the terminal or fields, or frozen bearings.
  • Failure to operate with no current draw indicates an open field circuit, open armature coils, broken brush springs, worn brushes or other causes which would prevent good contact between the communtator and the brushes.
  • A low no load speed and low current draw indicates high internal resistance due to poor connections, defective leads or a dirty commutator.
  • High free speed and current draw usually indicate shorted fields or a shorted armature.
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Jul 21, 2010 | 1990 Chevrolet Cavalier

1 Answer

Maytag/Amana top-load washer motor humms but fails to start

id start with the start capacitor first. but ive seen a bad pump lock up a unit too. motor switch could be bad if the capacitor does not fix

Jun 24, 2009 | Amana ALW880WH Top Load Washer

2 Answers

My table saw stops after a minute or two i replaces the capacitor and still does the same the breaker pops out

This means it's drawing high amp. Could be just packed with saw dust, getting hot. The breaker is probably thermal. Clean it up good. If it still trips, check for name plate current on motor and test.

If you need further help, I’m available over the phone at

Jun 22, 2009 | Delta 36-716B 10" 1-3/4 HP 120/240V...

1 Answer

Acq158xpo whirlpool window ac power on unit humms

hello there!
well,humming that's the motor stuck up,it can't start up,the running winding of motor has built up current because it can't move on,the start winding is not wotking,check starting capacitor ,using multi tester have set to RX100 test rod on both terminal pointer will deflect to "o"reading,then reverse the test rod on terminal of capacitor this will deflect also to "0" but gradually go back to original position at high value.if this happen your capacitor is good.but if not deflect.defective capacitor,replace defective capacitor,
if capacitor is good,check relay coil,or check motor starting winding resistance,if you get high resistance more than 100 ohms
you motor is defective replace motor,
have a nice day,don't forget to rate me,thank's a lot

Apr 28, 2009 | Whirlpool ACQ158XP Wall/Window Air...

1 Answer

Maytag MDBTT79AWW dishwasher fills and nothing else. Once filled you hear a click, followed by a humming sound for 3-5 seconds, then silence. This will happen two or three more times, and then unit will...

That sounds like the motor trying to start but being jammed it is shutting off via an internal breaker. Check for something in the bootom of dishwasher that might have gotten down there that could do this. You might have to take the sprayer off and some things below that.

Mar 04, 2009 | Dishwashers

2 Answers

Delta Radial arm saw 33-990 tripping circuit breaker

More than likely motor but try this , if you have a wrap around amp probe or can borrow one or purchase a cheap one place the amp probe around the positive wire connected to panel breaker ,with meter on proper scale ,start saw and read probe current , if cap bad current will be high and stay until breaker trips , if motor will start high on start ,then low then ,very high and breaker will trip , be careful in panel working around live circuits , the reason it reads this way is because as the motor warms the laminates it the armature separate and cause the increase in current to spike ,if cap bad never gets to speed and has high current draw constantly , to verify cap(1) remove from circuit (2)place a screw driver across terminals to release any charge (3), then take ohm meter on ohms place meter leads on terminals one on each terminal at same time meter will rise and fall back(4) reverse leads and should rise and fall as before if it does this it is more than likely good a lot of electrical reasons for this but this will tell you what you wanted to know , good luck

Dec 08, 2008 | Saws

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