Question about Whirlpool GH7145XF Microwave Oven

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Whirlpool GH7145XF No power,was working fine just stoped, nothing on. We have checked the 20amp inline fuse it test fine, is there another fuse under the case in the food cavity?

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  • waterman okc Dec 09, 2007

    where is the in line fuse located

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Check your main breaker fuse in your panel/subpanel.

Otherwise if the inline fuse is good and the main power is good, then look at the power supply for the microwave.

Mike

Posted on Nov 09, 2007

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1 Answer

Whirlpool microwave gh7208xrq totally dead 20amp


In many Whirlpool models, there are several fuse and thermal cutouts (TCOs) / thermostats.

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.

If you don't find yours, or if you want to look at it without disassembling the oven, you can download it here.

You can find links to helpful exploded view diagrams and part ordering help here.

I recommend that you bookmark that link to your favorites.


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

Jan 30, 2010 | Whirlpool GH7208XR Convection / Microwave...

1 Answer

Installed in 2/29/02, The unit stopped working today. Totally dead. I checked the plug (fine), checked the circuit, fine, and power to house is fine.


2 simple things to check: Inside there is a fuse (15 A) check it. Check that the TCOs (thermal cut outs) are closed ie zero resistance across them.

Oct 28, 2009 | Whirlpool GH7145XF Microwave Oven

3 Answers

Dead microwave, after power surge


look for a ceramic fuse in a fuse holder. probably 15 amp or 20 amp. if this is blown (and likely is) the micro won't work at all.

Oct 16, 2009 | Microwave Ovens

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
60watt bulb and a
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 http://www.whirlpool.com/assets/pdfs/product/ZINSTALL/8206589.pdf reccommends 20amp
not a solution, something to check,

Oct 14, 2008 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Gh7145xf has lost all power.


A microwave can be dead for many reasons.

It may be the fuse, which is usually located on the floor of the oven behind the control panel or between the door switches.

If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.

Then when it cools, it closes the circuit and allows power through again.

When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.

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.

If it goes dead or blows the breaker (or GFI) when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.

If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.

You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.

If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.

If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa.

There should also be a "mini-manual" hidden inside the unit behind the control panel or hidden on the left side behind the grille, which is very helpful when troubleshooting & testing.

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

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

Jul 28, 2008 | Whirlpool GH7145XF Microwave Oven

1 Answer

Nothing works, blank touch pad


before you replace a circuit board check the inline fuse on the unit if you take off the the front panel you usually can see the fuse it is a 20 amp fuse you will need an meter to check resistences across the fuse it should read read 1 to 2 olhs on the meter if that does not work then you need to check tstat on the megatron itself or the the cavity tstat more than likely it is the fuse

Mar 22, 2008 | Whirlpool MH7135XE Microwave Oven

2 Answers

Whirlpool Miccrowave (GH7145XFQ-1) went dead...


Does the display light up?
Are you sure it is getting power?
Check that and get back to us cause the next step is going inside

Jan 01, 2008 | Whirlpool GH7145XF Microwave Oven

1 Answer

Whirpool Microwave GH7145XF


So is it dead? (No life, no beeps, no lights?)

A microwave can be dead for many reasons.

If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the thermostat to open.

When it cools, it closes the circuit and allows power through again.

If it's random, it may be a bad connection, usually on the control board or fuse holder.

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.

If the fuse is good, it may be an open thermostat or thermal cutout on or near the magnetron or on top of the cavity / body of the oven.

If you or a friend decide to look into it, we have critical safety information and disassembly information at our site, linked here on Fixya: http://tinyurl.com/yzjozk

See our listing here on FixYa: http://tinyurl.com/yzjozk

Let us know if you need more help.

We appreciate your thoughtful rating of our answer.

Nov 09, 2007 | Whirlpool GH7145XF Microwave Oven

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