Question about Miller Electric Mfg Co 903376 Deltaweld 302 MIG Welder, 3- Phase, 15 - 32 V

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CP 302 wlder

Have voltage on Meter and can raise and lower the voltage but get no reading on Amp meter or no arc.

Fan is running and the fuses on the feeder are ok can feed wire
but no arc. or reading on the meter.

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Trigger the wirefeeder while listening for the contactor on the CP302 to close, if it does start looking for loose, bad or missing ground connections to the work, then look for the power connection from the CP302 to the wirefeeder to be bad. If the CP302 contactor doesn't close look at the control cable between the wirefeeder and the CP302, try a different one if possible. If you hear the contactor close, and everything else is good, check the voltage at the CP302 output terminals to see if you may have a bad contactor.

Posted on Nov 29, 2008

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Posted on Jan 02, 2017

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Goodman a.c. ck361a has new fan motor and capacitor. Comes on runs great 10 min and fan shuts off but compressor on


Its probably drawing high amperage causing the motor to overheat. It may have the wrong size capacitor or weak capacitor. Or it is the wrong HP (horse power) or RPM. If you had a clamp on amp meter you can check the amperage by clamping around the L1 (normally the black) wire. Then check the amps that the motor is rated for (labeled on motor and box it came in). The amperage should be lower than it is rated for. Example... Amp meter reads 1.2a clamped around the L1 wire (left side of contactor) and motor rated at 1.5
If L1 is greater than 1.5a it will over heat. The new motor should be rated the same as the old HP, RPM & VOLTAGE.

Jun 11, 2015 | Goodman Heating & Cooling

1 Answer

DC 4.5-30V 0-10A Dual LED Digital Volt meter Ammeter Voltage AMP Power


If you want to read just the DC VOLTAGE of your RV battery , with the multimeter in the proper VOLTS range , you would simply connect the red lead to the positive feed and the black lead to the negative feed and read the digital display of the meter.

Whenever you want to read DC AMPERAGE with a multimeter , first set the meter for it's highest amps. Then you must connect the meter leads in SERIES somewhere within the circuit. This means that you will have to first create an OPEN in the circuit and then connect one lead from the meter to one side of the open and the other meter lead to the other wire . For example : let's say we would cut one wire going to a light bulb and then we would connect the AMP meter between the 2 ends of the cut wire , we could now read the AMPERAGE or SERIES FLOW of the current that the bulb draws when it is powered on.
Remember , NEVER connect the AMP METER directly across a powered circuit. It's like putting a direct short across the circuit.
Be sure to select the proper AMPS range setting on the meter before connecting the meter to a circuit. I recommend starting with the HIGH amps setting first to get an idea of just how much the circuit being tested actually draws when it it powered on. If you would happen to first start with a lower amps range , you might blow the protective fuse located usually inside the multimeter. Do no exceed the range of amperage that the meter is rated for.


May 11, 2014 | Vehicle Parts & Accessories

2 Answers

I have a Cozy model V0702A gas heater, and the blower quit working. How do I troubleshoot the problem?


To eliminate the T-stat from the puzzle, just short the T-stat's two wires together. If it works then it's the T-stat. To check the motor and capacitor, remove the power. Find the common winding of the motor and place one lead of the meter on it (make sure the meter is set to ohms) RX1, place the other lead on the start winding (should be a high resistance), then move it from star to run winding (should be a lower resistance), then measure from start to run and they should add up to basically the same reading as common to run +start. Exception of the common- any Non reading between start and run is a open (broken) winding. Internal overloads are placed in the common winding and are thermal (open because of heat caused by a short), they will reset when they cool down. Also check each winding to ground (the metal housing of the motor), and this should be a very high reading indicating no circuit to ground. The capacitor can be checked by first shorting the terminals together, disconnect an attached wire and placing the leads on the terminals with the meter set at R X 10000 and the meter should rise (numbers) momentarily as the capacitor charges then decrease as it discharges = good capacitor

Dec 10, 2013 | Cozy Heating & Cooling

1 Answer

Miniature fuse 8a blows on model r595slm


follow this steps and fix it. God bless you
However if the problem persist, you may have a) short circuit in capacitor b) short circuit high voltage diode c) short circuit in magnetron.


  1. Inspect the power cordUnplug the power cord and check for voltage at the outlet. Also inspect for damage, shorts, or burn marks that can be a possible safety hazard.
  2. Bad door switchIf your microwave does not work at all and you know everything is plugged in properly and the outlet is functioning, then also check the door hooks and the door release button. Using a volt-ohm meter on RX1, check your terminals. When your microwave door is closed you should have a reading of zero. Once the door is open the reading should change to infinity. If these readings do not match up, replacement of the door switch is necessary.
  3. Blown fusesTo determine if your fuse has blown out, which may attribute to your microwave not running, you need to pull the fuse out using a pair of fuse pullers. Lay it down and using a volt-ohm meter on RX1, check both ends of the fuse in question. If you do not get a reading of zero, then you will need to replace the fuse.
  4. Bad fan motorLocate the fan and remove the leads. Again using the volt-ohm meter on RX1, check the terminals. If an infinity reading is displayed, it means that the fan has gone bad and requires replacement.

Oct 25, 2013 | Sharp Microwave Ovens

1 Answer

Battery Drain


Hi Benbattell, try performing the following tests:
1. Fill acid type batteries to proper levels.
2. Charge battery overnight at 1-2 amps you need 12.5 volts or better after charging.
3. Hook up battery positive cable, then with your multimeter on the milliamp scale connect one lead to the negative battery post and the other lead to the ground cable. Meter should read 3 milliamps or less, 10 milliamps with a radio, 15 milliamps with radio and CB. If your meter reads higher you need to isolate the circuit by pulling fuses and circuit breakers one at a time and observe meter for drop in aprerage then get out your test light and track down the short in that circuit.
3. Make sure all connections are clean and tight especially the negative cable at "BOTH" ends.
4. Hook up volt meter to battery and start engine, if meter falls below 9.5 v while cranking replace battery.
5. With engine running at 3600 RPM battery should read 14.3-14.7 volts if not continue tests.
6. Unplug voltage regulator from alternator at crankcase by front of primary cover.
7. To test voltage regulator go to: https://www.youtube.com/watch?v=F8EjV0IjW9Q
8. With ohm meter, one lead grounded, touch alternator pin meter should read infinity, if not replace stator.
9. With ohm meter, both leads touching alternator pins meter should read 0.1 to 0.2 ohms on 1989 and later models. 0.2 to 0.4 ohms 1988 and earlier models, if not replace stator.
10. With volt meter set on AC scale, both leads touching alternator pins meter should read
16 to 20 volts AC for every 1000 RPM'S 1989 and later and 19 to 26 volts AC for every 1000 RPMS. If not replace rotor.
17. For a free wiring diagram please visit the website below. Good luck and have nice day.
Harley Davidson Wiring Diagrams and Schematics

Jan 26, 2012 | 2009 Harley Davidson FXDF Dyna Fat Bob

1 Answer

Okay my boyfriend has a 1999 dodge intrepid with 172,000 miles on it. he bought a new battery but now the battery light is still on? do you know what the problem could be? also what could he do to get it...


if the battery light is on while running the charging system is not working.you can check
with a volt meter,setting meter to dc volts & connect meter leads to battery.reading should
be 13.2 - 14.5 volts if lower than this your only reading battery voltage.check single red wire to the alternator it should read battery volts 12v.if battery voltage is present than alternator is faulty,if no voltage reading you'll need to trace & repair the wiring
note; battery should be fully charge before testing

good luck

Jun 20, 2011 | 1999 Dodge Intrepid

1 Answer

GE 19GT317 does not power on.i press the power button i hear 2 clicks.but it does not come on. what could be the problem?


There is the possibility that; (1) the horizontal output Transistor has shorted out. (2) the horizontal driver transistor and last but not least (3) the H output transformer.

If you have a Isolation variable power supply meter, connect the tv set to the meter. Slowly raise the voltage to 70 to 90 volts ac, but, keep an eye on the amp meter. If the amp meter rises sharply to mid poit while adjusting the meter to 70 volts..stop...you have a "dead short". The set needs trouble shooting and the short(s) eliminated to solve your problem.

If you manage to raise the voltage to 70, turn the set on and raise the voltage to 90 vac. The set should come on, but, the pic will not be that great. This will tell you that you either have a problem with the H driver, a cap, or the H transformer.

Apr 20, 2011 | GE 19GT317 19" TV

1 Answer

Fan on my big buddy heater just stopped working changed batteries still not working?tried the switch nothing .i only have radiant heat.


I would first check the wiring connections to fan and get a multi meter , set on 12 volts dc and see if fan motor has 12 vdc input voltage.
Too cheap to buy a voltage tester at wal mart ot harbor frieght, you can use a 12 volt bulb and socket, if you already have one. Remove fan wires & hook up 12 volt light bulb & if it lights, you got the juice. Carefull,dont let live wires touch because you short out $26.00 big buddy fan transformer. work with fan transformer unplugged from wall and dont plug in until you sure no wires touch.
use electrical or duct tape. electrical tape better.

otherwise,just buy the multi meter, they only $8.00 to $10.00
read & understand instructions, before you try to use it. otherwise,you could burn out your new meter.

well worth owning &
learning to use multi meter. I use it thousands of times.

if fan motor has juice but wont run, check fan shaft to see if it turns freely or scrapes or is stuck. oil fan motor bearings ,change the brushes.
make sure that the fan blades are not touching the fan housing and can turn freely.
if it still dont work, buy new fan motor.
if no juice at fan motor, check mr heater switch with the power off,unplug transformer from the wall or remove batteries.,
and use the ohm meter setting of the multi- meter to test for continuity of the switch when the switch is in the on position.
power must be off when using the ohm setting of a multimeter.
if power is on & using the ohm setting of the multi meter, you will blow out the multimeter. The ohm setting uses a 1.5 volt dc battery inside the multimeter to test for a compleated circuit.
so, 12volts dc would blow it out on ohms setting.
TESTING FOR OUTPUT OF FAN TRANSFORMER OR BATERY PACK.
If the switch is good,reinstall it on mr.heater and test the output of the transformer or battery compartment using the 20 volt dc scale of the multi meter. the voltage scale you select ,must be higher than the voltage you expect to find ,in order to avoid damage to the multi meter.
observe polarity,positive to red and negative to black.

the dc voltmeter setting is totally polarity sensitive and a reversed hook up could blow out the meter.
multi meter means it can read ac volts, dc volts,ohms and dc amps. Read and understand the included instructions before using a multi meter
a good single battery in new condition reads 1.62volts dc
1.5 vdc is almost dead, a good used battery reads 1.58 to 1.6 vdc
below 1.58 vdc is weak battery and 1.48 vdc is usually totally dead, but may be enough for momentary usage under 1 minute.

Sep 08, 2010 | Mr. Heater Big Buddy Heater

1 Answer

What is the fuse # for the power window


On the right side of your glove box, open the passenger door to access compartment #26 30 amp.

As for the power windows, try this.
1.        Measure voltage at 30 amp circuit breaker #26 at fuse block. Meter should read battery voltage. If not, replace or repair open to 60 amp fuse #13 in Power Distribution Center (PDC) as required.
2.        Turn ignition switch to off and measure resistance from ground lug on left side kick panel to ground. Meter read zero ohms. If not, repair open to ground.
3.        Remove master power window switch on left front door. Measure resistance at black wire (terminal one of green connector). Meter should read zero ohms. If not, repair open to ground.
4.        Turn ignition switch to on and measure voltage at terminal 5 of black connector. Meter should read battery voltage. If not, repair open to circuit breaker #26 in fuse block.
5.        Close master window switch. Measure voltage at terminal 1 of black connector. Meter should read battery voltage. If not, replace switch.
6.        Operate window switch. All windows should operate.


Thanks. you can rate this solution and show your appreciation.

May 20, 2010 | 1994 Jeep Grand Cherokee

2 Answers

Heater fan not working . changed fuse and nothing Silverado 1500


you can test the motor with a multe tester with ohms capable, locate the heater motor and the wires feeding it there will be 2 find the plug and unplug it, using the tester probe the 2 wires with the red and black from the meter to the motor side, on ohms scale the meter should deflect close to full scale, with a digital it should read around 30 or have at least have a low number but no lower than 20 or so, if you get a reading your motor is probably OK, you can also use the meter in voltage mode and with the heater turned on you should read a voltage higher than 10 on the vehicular side of the plug, if there is no voltage there check to see if you have voltage at the heater fuse, if so than replace your fan control switch,,,good to go

Jan 28, 2010 | 2003 Chevrolet Silverado 1500

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