Question about GE Spacemaker JVM1750 Microwave Oven

1 Answer

No power have continuity at 250 vt 20 amp fusse & bottom TCO

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • GE Master
  • 3,051 Answers

Hello there and welcome to fixya
This a fairly common issue with these microwaves
Normally what the problems turns out being that the fuse that sits on the controle board inside
So what you are going to have to do is first remove the outer shell this is done by removing the screws that are on the edge of the unit along the back then remove the screws on the sides then all you have to do is to slide the cover back towards the rear abnout 1/4 inch then the cover should lift off ok?
the fuse sites on the right side on a electronic board on the right side as you look at he microwave from the front
simply remove the fuse and replace it WITH THE EXACT SAME FUSE THIS IS VERY IMPORTANT then test the microwave it it now works great all u have to do is to put the cover back on and you are done ok
However if it does not work then you will have to investigate the power inverter and have it tested this part can be expensive (just to let you know ) ok?
Please keep me informed on how this is going post me a comment ok?
Best regards Mike

Posted on Feb 14, 2012

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The power light no longer turns on, despite it being plugged in. What may be the problem? A fuse?


Yes, it can be a fuse (usually a 20-amp fuse), or it can be a thermal cutoff device (called a TCO or thermostat) that is usually located above the cooking cavity (under the outer panel).

Sep 18, 2014 | Microwave Ovens

1 Answer

Microwave VENT fan keeps running


I would say you replaced a good hood thermostat (or "TCO" / thermal cutout) with a new thermostat of the wrong type.
The oven cavity TCO and the magnetron TCO will read zero ohms continuity when tested.
They are "normally closed" devices.
But the hood vent exhaust fan's TCO is a "normally open" TCO or thermostat, so it should read open or "infinity" on a continuity check.
If the temperature under the microwave gets too high, the hood TCO opens, which turns on the vent fan until it cools back down.
I would bet that only your fuse was blown.

May 18, 2013 | Microwave Ovens

1 Answer

I have GE Advantium 120 SCB1001 Microwave Oven. It is plugged in, outlet has power, but nothing comes on at all.


There are TCOs (thermal cutouts) which also can fail or blow, resulting in "no power" conditions.

All but one of them should be accessible without taking the oven from the wall.


At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.


The full service manual is here.

You can find helpful exploded views and order GE parts here.

BUT there is one TCO which has thinner wires of a color other than black or white. This is the hood TCO and should read "open" or "infinite" which is correct.

All other TCOs should read shorted or virtually zero ohms on a continuity test, as should the fuse.


The cavity TCO is only accessible by removing the oven from the wall, then taking off its outer cover.

When taking the oven from the wall, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download GE owner's manuals and installation instructions here.


We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Jun 07, 2012 | GE Advantium 120 Convection/Microwave Oven

1 Answer

Hotpoint rvm1435 microwave: seemingly no power (no lights work, no buttons work, etc); however a voltage tester shows electricity inside the unit. I tried replacing the fuse, but that was not it...any...


In addition to the fuse, the safety devices which will render the oven dead during a fault condition are the bottom TCO and the cavity TCO.

The TCOs (thermal cutouts) have thick black wires connected to them, and they should both read "closed" or zero ohms when you do a continuity check on them.

Do not confuse the hood TCO, which has thinner red and blue wires connected to it and which are supposed to normally read "open" or infinity. If the hood TCO were bad, the hood vent exhaust fan would run all the time.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Aug 24, 2011 | Hotpoint RVM1435 Microwave Oven

1 Answer

No power or lights at all. Fuse is OK, Tested circuit board and power supply on it works. Open TCO??


You can check the TCO- thermal control contact sensor.by using a meter for checking the continuity. If open then replace if not then you can check on the relay trigger, check on the circuit trigger to the relay that must switch the lights,fan and microwave.
See if the door latch switch is contacting because only when the door is latched the switch contacts to give supply to the microwave circuit.
Hope you test on these tips.

Aug 25, 2010 | Frigidaire FMV157GM Microwave Oven

1 Answer

Kid ran empty for ten minutes, got very hot, now doesn't work. Fuses seem OK.


most likely the thermal fuse ( usually calld thermal cut off orTCO) which is mounted on top of the cavity and is to protect the cavity from over heating has blown out.power to control board goes through this tco.to access this tco u have to remove the outer cover of the unit by removing all the screws th back and sides.once u have removed the cover then u can the tco at the top.it is round in shape.u can do a continuity test on it.

Aug 19, 2009 | Microwave Ovens

1 Answer

FMV158FMB Just stopped working.


This may be a blown 20A fuse, open bottom T.C.O. (not to be confused with the hood TCO, which should read "open"), open cavity TCO, or open magnetron TCO.

We have the service / repair manual for this model and have uploaded it to our site here for free download to help you.

It will give you safety info, step by step help in disassembly, troubleshooting tips, and part numbers.
They will give you safety info, step by step help in disassembly, and troubleshooting tips.

Most computers will open this document automatically, but you may need the
free Adobe Reader.

You can order parts by entering your full model number from the tag on the oven here.

Accessing some components (especially the oven cavity thermostat) for testing and possible replacement will require you to remove the oven from the wall and take off the outer cover.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download Whirlpool owner's manuals and installation instructions here.

Feel free to contact me directly (and please remind me of your full model number from the tag on the unit) for more information & help.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Jul 24, 2009 | Frigidaire Microwave Ovens

1 Answer

Jvm1190 over range micro/convection oven


If the hood vent exhaust fan came on by itself, that was due to excessive heat on stove top, a failure of the hood TCO (thermal cutout / thermostat) or a problem on the control circuit board (smart board) which we regularly repair for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

There should be a "mini-manual" (tech sheet) hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting, testing, and locating components.

d:%5cele%5crepair%5cmicrowave%5cge_hotpoint%5cmini_manual_behind_grille_small.jpgdee77f7.jpg

At our Web site, we have a video available showing how to remove a typical over the range control panel assembly in under 5 minutes.

In this model, there are three TCOs which could be open, rendering the oven dead: The bottom TCO (not to be confused with the hood TCO, which should be normally open) the heater TCO and the magnetron TCO.

Also, the fuse should be checked in the unit.

Accessing some components for testing and possible replacement will require you to remove the oven from the wall.

If so, the installation instructions are very handy, and it's best to have two people since the microwave can be heavy and awkward.

You can download GE owner's manuals and installation instructions here.

You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

After you look into this, if you still need help, please write back with more details.

Feel free to contact me directly (and please remind me of your full model number) for more information & help or see our Web site.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

William E. "Ed" Miller, AS-EET
prototech@usa.net
http://www.microwavedisplay.com

Feb 15, 2009 | GE JVM1790 Convection / Microwave Oven

1 Answer

GE Spacemaker Microwave Blown Fuse replaced still no power


If you measure across the varistor leads with it still in the circuit, you should measure around 100-300 ohms, which is the DC resistance of the primary of the low voltage transformer.

If you read infinity / open the primary of the low voltage transformer is bad.

If the varistor is bad, it will be shorted and usually it will be cracked or split. This is a much simpler way to test the varistor.

Have you checked the magnetron thermal cutout (TCO) (or thermostat if so equipped) and the oven TCO? These are the leading causes of a dead GE when the fuse is okay.

You didn't mention the model number. What is it?

Please reply back here if you still need help.

We're happy to help you. Once we have all your information and offer a final solution, we'd appreciate your thoughtful rating of our answer.

Jul 17, 2008 | Microwave Ovens

1 Answer

Ge Spacemaker microwave jvm240 wv Micro hood combo.


sounds to me like the magnatron has shorted out. i don't know of a way to test them unless you have some high dollar equipment. a continuity test prob wont tell you anything. what reading did you get on the cap when you tested it?

Jan 05, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

Not finding what you are looking for?
GE Spacemaker JVM1750 Microwave Oven Logo

145 people viewed this question

Ask a Question

Usually answered in minutes!

Top GE Microwave Ovens Experts

D. E. Hev

Level 3 Expert

1167 Answers

 Larry
Larry

Level 2 Expert

115 Answers

Shekar Avadhani

Level 2 Expert

61 Answers

Are you a GE Microwave Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...