Question about Whirlpool GH4155XP Microwave Oven

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Whirlpool microwave oven

My gh7208xry is giving fault code f7 hv smps feedback

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There should also 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.

It says:

F7 Power to magnetron interrupted

1. Unplug microwave oven or disconnect power.
2. After 40 seconds, check to see whether this solves the problem.
3. Unplug microwave oven or disconnect power.
4. Check cooling fan operation
5. Check the magnetron.
6. Check P65 connection on the relay control board.
7. Check the P56/P66 connection between relay board and relay control board.
8. Check wiring to the 1200W inverter and control system. See “Checking Inverters.”
9. Check operation of all interlock switches.
10. Replace all parts and panels before operating.
11. Plug in microwave oven or reconnect power.
12. Check voltage at 4903-1 on relay board. If it is 120, unplug microwave oven or disconnect power.
13. Replace inverter.
14. Replace all parts and panels before operating.
15. Plug in microwave oven or reconnect power.
16. If problem persists, unplug microwave oven or disconnect power.
17. Replace relay control board.
18. Replace all parts and panels before operating.
19. Plug in microwave oven or reconnect power.
20. If problem persists, unplug microwave oven or disconnect power.
21. Check for reversed plug connection on controls or loose wiring.
22. Replace all parts and panels before operating.
23. Plug in microwave oven or reconnect power.

If for some reason your tech sheet is not there, you can download it here.

We regularly repair control units for customers nationwide by mail for $39.95 postpaid in about a week with a one-year guarantee.

Feel free to contact me directly (and please remind me of your full model number) 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
prototech@usa.net
http://www.microwavedisplay.com

Posted on Dec 02, 2008

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Microwave is saying f7


<- With a full model number from the tag on or in the oven, I may have been able to give you specific help.

Without that essential information, I can only give more general advice.

I would ask for additional information, but FixYa no longer notifies us experts when such inquiries have been answered.

F7 on a Whirlpool microwave is usually a problem with the inverter or other high voltage component.

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.

There's a video here showing how to remove a typical over the range control panel assembly in under 5 minutes.

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F7 call for service


Hi, the F7 = HV SMPS feedback error. Most of the time this is a costly microprocessor board issue but can be something as simple as a loose or broken wire.

If it is in fact new you should contact Whirlpool for warranty service. Anything you would do as a consumer will void the warranty.

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KitchenAid KHMS 2050 SSS, doesn't heat up and indicates "Error Code F7, VH SMPS feedback, call for service"


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This error code F7 from a Ktchenaid oven means that the function key is stuck on ERC. This can be fixed by having the control board (also called ERC or clock) be replaced.You may contact Sears for the replacement part at 1-800-252-1698; M-F 6:30 AM-10:30 PM - Sat 7:00 AM-9:30 PM - Sun 7:30 AM-9:30 PM - All times Central. Just get your model number ready when you call.
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Hi and welcome to FixYa, I am Kelly.

The F7 = HV SMPS feedback error. Most of the time this is a costly microprocessor board issue but can be something as simple as a loose or broken wire.

If it is in fact new you should contact Whirlpool for warranty service. Anything you would do as a consumer will void the warranty. First make sure your microwave is registerd via this link where it says "Register your product" http://www.whirlpool.com/custserv/index.jsp

Then using that same link you can schedule service or find out where your nearest carry in service center is.
Online Service Scheduling:
https://www.whirlpool.com/service/error.jsp?country=US&lang=en&brand=WP

CONTACT WHIRLPOOL
(866) 698-2538
Mon-Fri: 8am - 10pm (EDT)
Sat: 12pm - 5pm (EDT)

email: http://www.whirlpool.com/custserv/email_form.jsp


If the unit is second hand or out of warranty please include the model number in your next response.

Thanks for choosing FixYa,

Kelly

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Its got a code coming up saying f7


Most F7 codes are saying the keypad is sticking. Try running your fingers flat up and down across the keypad then horizontally multiple times and see if the F7 code clears. You cna verify this if you unplug the unit and then plug it back in. There should be a pause of about 16 seconds then the F7 code will appear if it is in fact a keypad problem.

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Whirlpool Velos Microwave showing "Error F7 HV SMPS Feedback" error. What does that mean?


F7 means that the control panel is not getting feedback from the Switched Mode Power Supply (high-voltage inverter).

This could be due to a problem with the inverter or the control unit / circuit board, but it appears to be the latter in most cases.

We repair microwave control boards for customers nationwide with our guaranteed $39.95 service.

We have full details, plus critical safety, disassembly, and troubleshooting info at our site. You'll find a link to our site in our listing here on FixYa: http://tinyurl.com/yzjozk

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.

You may reply back with your brand and model number if you'd like us to look into this further, or feel free to contact me directly if you need more help.

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

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

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