How do i check if a magnetron is operational

It shows that magnetron is not operating,check high voltage diode grounded from the high voltage capacitor by replacing the same with same specification,if problem remains then check connection leads connected with magnetron for loose or corrosion,finally check by replacing the magnetron.

hello sir 

you are right magnetron is fully interrupted....... but tell me  !. do you want to repair machine( 4 sec problem) 2. do you want to buy inverter , magnetron  please tell i am ready to help you sir


I believe that is a microcomputer board failure. You will have to replace this board. Website below.

I have gotten parts from "repairclinic" on line and they worked fine. I saved $600 on the last repair of an oven. Good luck.





or sir you can find and fix each and every type of code error


http://www.applianceaid.com/micro_faultcodes.html#WLP

From a similar model's tech sheet (and yours should have one hidden inside):

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. Check resistance of the magnetron thermostat.
4. Check the magnetron. See this file for details.
5. Check wiring to the 1100W inverter and control system. See "Checking Inverters"
6. Check operation of all interlock switches. See this text file. Check door, hinge and cavity front alignment. Adjust as needed.
7. If switches operate correctly, replace 1100W inverter.
8. If problem persists, replace electronic control.
9. Plug in microwave oven or reconnect power.

You can find helpful exploded view diagrams and order parts by entering your full model number (KHHS179LSS2 without dashes or spaces) 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.

According to the technical sheet found hidden inside the unit behind the controller and online here:

F7 Power to magnetron interrupted
1. Unplug microwave oven or disconnect power.
2. After 40 seconds, check to see whether this solves the problem. (Possible reason: Over temperature protection for the magnetron opened.)
3. Check resistance of the magnetron thermostat. It should be close to 0 ohms.
4. Check the magnetron.
5. Check wiring to the 1100W inverter and control system.
6. Check operation of all interlock switches.
7. If switches operate correctly:
- Replace 1100W inverter.
- If problem persists, replace power supply board.
8. Plug in microwave oven or reconnect power.

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.

For model KHHS179LWH2, from the tech sheet located behind the controls or found online here:

F7 Power to magnetron interrupted

1. Unplug microwave oven or disconnect power.
2. After 40 seconds, check to see whether this solves the problem. (Possible
reason: Over temperature protection for the magnetron opened.)
3. See safety info here, then check resistance of the magnetron thermostat. It should be close to 0 ohms.
4. Check the magnetron.
5. Check wiring to the 1100W inverter and control system.
6. Check operation of all interlock switches.
7. If switches operate correctly:
- Replace 1100W inverter.
- If problem persists, replace power supply board.
8. Plug in microwave oven or reconnect power.

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

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

HI. in most cases, this will lead to a failed Heating device(magnetron tube).It would be wise to check the Magnetron cutoff fuse to be sure of its integrity. if the fuse is blown, simply replace it. if the fuse continues to show continuity, replace the magnetron.

(((The fuse is located inside the unit along side the magnetron)))

This is schematic:
http://www.servicematters.com/docs/wiring/wiring_main.htm
But your correct model # is: GH5184XPS4

F7 Power to magnetron
interrupted
1. Check the door, hinge and cavity front alignment. Adjust as needed.
2. Check the operation of all interlock switches.
3. To check the over-temperature protection for the magnetron, unplug
microwave oven or disconnect power.
4. After 40 seconds, check to see whether this solves the problem.
5. If this solves the problem, check the cooling fan for proper operation or
blockage.
6. Unplug microwave oven or disconnect power.
7. Check resistance of the magnetron thermostat. It should be close to
0 ohms. If necessary, replace magnetron thermostat.
8. Check that the control cable to the 1100 watt inverter is correctly connected
to plug P2 on the display PCB. If necessary, adjust or reconnect.
9. If interlock switches operate correctly, replace 1100W inverter.
10. If problem persists, replace electronic control.
11. Plug in microwave oven or reconnect power.

I’m happy to help further over the phone at https://www.6ya.com/expert/vitaliy_f406165329c75ede

From the technical sheet usually located behind the control panel or grille:

F7 Power to magnetron interrupted

1. Check the door, hinge and cavity front alignment. Adjust as needed.

2. Check the operation of all interlock switches.

3. To check the over-temperature protection for the magnetron, unplug microwave oven or disconnect power.

4. After 40 seconds, check to see whether this solves the problem.

5. If this solves the problem, check the cooling fan for proper operation or blockage.

6. Unplug microwave oven or disconnect power.

7. Check resistance of the magnetron thermostat. It should be close to 0 ohms. If necessary, replace magnetron thermostat.

8. Check that the control cable to the 1100 watt inverter is correctly connected to plug P2 on the display PCB. If necessary, adjust or reconnect.

9. If interlock switches operate correctly, replace 1100W inverter.

10. If problem persists, replace electronic control.

11. Plug in microwave oven or reconnect power.

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

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

F7 is q 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 resistance of the magnetron thermostat.
6. Check the magnetron.
7. Check P2, P4 and P27 connections.
8. Check wiring to the 1100W inverters and control system. See
“Checking Inverters.”
9. Check operation of all interlock switches.
10. Replace inverter, if defective.
11. Replace all parts and panels before operating.
12. Plug in microwave oven or reconnect power.
13. If problem persists, unplug microwave oven or disconnect power.
14. Replace electronic control.
15. Replace all parts and panels before operating.
16. Plug in microwave oven or reconnect power.
17. If problem persists, unplug microwave oven or disconnect power.
18. Check for reversed plug connection on controls or loose wiring.
19. Replace all parts and panels before operating.
20. Plug in microwave oven or reconnect power.

first you check all high voltage section circuit and check magnetron .. check control unit also..