Panasonic NN-H664 Microwave Oven - Page 8 - Answered Questions & Fixed issues

My personal suggestion would be to go for these repair catalogs. I know this website www.reliable-store that i used to get manuals from, and they have all models online. I also brought for my 1989 BMW, such old model, they had it and it was very good manual. Go ahead, I bet.

Unfamiliar as I am with the "Inverter", most microwaves have a few screws holding the cover on to the base. When the cover is removed, you should see a light. If you would like a schematic of all this, try typing your model number in to the required box at the web-site named "searspartsdirect" and that might be helpful. God bless your efforts.

https://www.manualslib.com/manual/438181/Panasonic-Nn-Cd989s.html Click link to download manual

https://www.thegoodguys.com.au/panasonic-27l-1000w-stainless-steel-microwave-nn-sf574sqpq Click link and download manual

http://panasonic.ae/en/manuals/NN-CD987w.pdf Click on link and download manual.

Http://www.retrevo.com/samples/Microwave-manuals.html

Do search on google If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10

it needs to be repaired others have had the same problem. here's one review... liked this product very much, until it died after a little under 1.5 years. I brought it to a repair center recommended by Panasonic. They quoted me a parts-and-labor price of around $125 to fix the thing. The repair included a new membrane pad (the buttons on the front), new fuse, and new fuse holder. The repair center told me they've been instructed by Panasonic to replace all old fuse holders with newer, better ones. Apparently, the original fuse holder was somewhat defective, causing the fuse to burn out. I don't know if this bears any relation as to why a relatively new membrane pad might have gone bad, but it's certainly annoying for a device costing several hundred dollars.

If its 20 years old Throw it it not cost effective to fix.

Remove outer cabinet. Activate latch to release the door. Probably caused by a broken spring.

It sounds like you have a microswitch that is bad or out of alignment.

If power is supplied to turntable motor yet it does not spin, then replace the motor.

from panasonic parts or from e-bay

I had that issue and I opened the unit and there was a fuse near where the power went in. Went to the small local hardware store and they ordered it. It was well under $5 (can't remember) but it still works over 10 years later. If the fuse blew again I would have trashed the unit.

Inverter and melectron faulty will couse this problem

Melectron need to replace

Fairly sure you can download one from the Panasonic website. I did for my inverter combination oven.

That would be an inverter issue. Here's my overview of Panasonic microwave faults: Diagnosing Panasonic microwave oven stoppages: If it stops after 22 seconds, that means the controller has detected a problem, usually a problem with the inverter, controller, magnetron, or a bad connection from one or the other. If it stops at 16 seconds and is a sensor model, it probably has a defective humidity sensor. If it stops after 7 seconds, it has a problem with the inverter. If the digital programmer circuit / controller does not get a feedback signal from the inverter for a period of 3 seconds, the controller will stop the cook cycle. Or see if this describes what's happening: Put in time, push start and unit runs for 2 seconds, relay clicks, unit goes off. Cook time on display goes off and clock time comes back. Bad upper interlock switch and charred connector. If so, see: http://www.microwavecontrol.com/safety.htm http://www.microwavecontrol.com/disassembly.htm http://www.microwavecontrol.com/doorsw.htmH95, H97, H98 or H99 mean that there's a problem with your inverter, magnetron, or digital programming circuit. It may be a loose connection in the wiring between the inverter, magnetron, and/or control board, or maybe one of those components has failed. Due to the complexity and lethal voltages used and produced in inverters, I do not recommend that an inexperienced person work on these. You can find an authorized Panasonic servicer here. In Canada, you can find an authorized Panasonic servicer here. Got more questions? Please contact me directly for full details since FixYa doesn't always inform us of follow-up questions. Remind me of the full model number and FCC ID number from the tag and your detailed symptoms. - William E. Miller, AS-EET [email protected] http://www.MicrowaveControl.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"

As with many, if not most microwaves, Panasonic Genius microwaves cook using waves at 2450Mhz.

See my help file on door switches here. If you have other questions, please feel free to contact me directly (see below). .- William E. Miller, AS-EET [email protected] http://www.MicrowaveControl.com Microwave Oven Control Panel Repair Nationwide "Recycling by repairing since 1982"