No power to gh4155xps - Whirlpool GH4155XPS Microwave Oven

Which model of Sharp microwave do you have?

For the SMC1441CB, after setting the cook time, press the power level button and then the appropriate digits for the percentage of full power to use. For full power, press power level then 1 and then 0. For 50% power, press power level then press 5.

For the SMC0710BB, after setting the cook time, press the Power button until you see the desired power level displayed on the LCD screen. Press Power once to get 100% power. Press Power 6 times to get 50% power.

For the R-659YW, you set the power before setting the cooking time. You press the Power button several times to get to the desired power level. Pressing Power 7 times will have the microwave cook with 40% of its full power level.

Many current Sharp appliance manuals are available on their product page or the Sharp support page. The current Sharp microwaves are listed here: http://www.sharpusa.com/ForHome/HomeAppliances/Microwaves/Models.aspx?facet:configurationfilter=Countertop . Other appliance manuals are available when you enter the model number in the search bar at http://www.sharpusa.com/Support.aspx .

I hope this helps.

Cindy Wells

go to www.repairclinic.com and get it

God bless you

Hello, welcome to Fixya!

The unit not powering up is an indication that it has a power fault.

First, remove the unit's power cord from the wall, wait for about 30mins, then plug it back in. It may cool by then and might power on. If it doesn't power on, plug it into another outlet, to make sure there electricity entering into the unit.

If plugging into another power outlet doesn't power it on then the unit is most likely having a power problem.

When electric current comes from the power outlet into the cooker, it goes straight into the power supply board which then circulates the current into the unit. So if the cooker doesn't power on, the first thing is to make sure there is power entering into the machine.

So check the power cord, if it is a 3-pin plug, it must have a fuse in it. check the fuse if it is not blown. if fuse is intact, then power supply board should be checked.

If any machine or electronics device doesn't power on, it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Regards.

Hello,

the problem of this unit is power related.

First, remove the unit's power cord from the wall, wait for about 30mins, then plug it back in. It may cool by then and might power on. If it doesn't power on, plug it into another outlet, to make sure there electricity entering into the unit.

If plugging into another power outlet doesn't power it on then the unit is most likely having a power problem.

When electric current comes from the power outlet into the cooker, it goes straight into the power supply board which then circulates the current into the unit. So if the cooker doesn't power on, the first thing is to make sure there is power entering into the machine.

So check the power cord, if it is a 3-pin plug, it must have a fuse in it. check the fuse if it is not blown. if fuse is intact, then power supply board should be checked.

If any machine or electronics device doesn't power on, it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Regards.

Hi,

the problem of this unit is power related.

First, remove the unit's power cord from the wall, wait for about 30mins, then plug it back in. It may cool by then and might power on. If it doesn't power on, plug it into another outlet, to make sure there electricity entering into the unit.

If plugging into another power outlet doesn't power it on then the unit is most likely having a power problem.

When electric current comes from the power outlet into the cooker, it goes straight into the power supply board which then circulates the current into the unit. So if the cooker doesn't power on, the first thing is to make sure there is power entering into the machine.

So check the power cord, if it is a 3-pin plug, it must have a fuse in it. check the fuse if it is not blown. if fuse is intact, then power supply board should be checked.

If any machine or electronics device doesn't power on, it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter and continuity tester in order to read the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Regards.

Hi and welcome to FixYa, I am Kelly.

For post reference use this parts diagram:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5139915&diagram_id=28260680#d28260680

Usually either the capacitor (Item 20 above) or the diode (item 19 above) causes this problem.


You POWER OFF the unit completely. CB OFF or local plug un-plugged.

- Open the chassis and you FIRST discharge the capacitor by holding a screwdriver way back on the handle and GROUND the capacitor across the 2 terminals at least 3 times. (Trust me if the capacitor is good and you do not do this your in for a really bad day)
- Disconnect one end of the power diode and then test the diode for continuity 2 times reversing the leads. It should read continuity on ONE direction / polarity only. If it reads open in both directions or short in both directions it has failed.
- Next test the capacitor by probing the terminals and again reversing the leads. On a scale of R x 1,000 or R x 10,000 (X 10 better) your looking for a momentary jump in resistance and then the meter returns to near infinity. (Just make sure all the leads are off ONE set of terminals first) Reverse the test leads and probe again. You should see the resistance jump and then fade to near infinity EACH time the leads are reversed..

These are the 2 most common reasons for the unit to run but not heat. If after testing you still have no isiolated the problem, respond with your results and we can proceed from there.

Thanks for choosing FixYa,
Kelly

The magnetron has become defective, especially when it is followed by popping noises and is laboring are classic signs of failure. The other two components that should be checked are the high voltage capacitor and diode, but considering the repairs needed it would be cheaper to replace.

Door catches.

Remove from any power source, remove the cover of the cabinet. Slacken off the clamp mechanism and ease the clamp over the guide to allow the door to open. The door may be easily adjusted by slackening off the screws that clamp the door catch/actuators in place whilst holding the door closed and then tightening the screws. The rear of the door may be adjusted by slackening the lower door hinge screws and adjusting as required.
I hope that helps.

Here is a link to the wiring diagram.

wiring/Tech%20Sheet%20-%208205611.pdf