Thread Number: 84239
/ Tag: Ranges, Stoves, Ovens
Help or guidance Please for GE p7 wall oven |
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Post# 1086173 , Reply# 1   8/23/2020 at 15:51 (1,341 days old) by goatfarmer (South Bend, home of Champions)   |   | |
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Post# 1086230 , Reply# 2   8/23/2020 at 21:55 (1,340 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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The sensor on the bake element is the lock thermostat and over heat protector for the oven, if the element needs replacing you remove this thermostat and mount it on the new element.
These early P-7 ovens were very good but complicated , if it does not heat at all it could be a bad sensor, bad selector switch, bad responder or circuit board depending on which system your oven has, bad heat relay, bad sensor on the bake element, bad transformer, bad lock switch and of course a bad wiring connection.
John L. |
Post# 1086257 , Reply# 3   8/24/2020 at 04:59 (1,340 days old) by Racinboo10 (Saylorsburg pa)   |   | |
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Thank you guys, I will pull the oven out and test some things with the ohm meter and go from there. I appreciate the help. I will try to test things this weekend. Thank you for the guidance! Michael |
Post# 1086298 , Reply# 4   8/24/2020 at 11:40 (1,340 days old) by sarahperdue (Alabama)   |   | |
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Post# 1086374 , Reply# 5   8/24/2020 at 19:17 (1,339 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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Hi Sarah, The 2nd generation GE P-7 ovens around all had a little control board in the temperature control circuit, they were fairly reliable.
The 3rd generation P-7 ovens went to a dual range mechanical thermostat that had sodium potassium filled capillary bulb, this system was used from the mid 70s till they went all electronic controlled ovens for the p-7 ovens around the mid to later 80s.
This 3rd ten system was the most reliable of the three major control systems.
John L. |
Post# 1086417 , Reply# 6   8/25/2020 at 00:38 (1,339 days old) by SudsMaster (SF Bay Area, California)   |   | |
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Hey John L, interesting info.
Perhaps you can shed some light on the P*7 wall oven here.
I bought this 1941 house in 1997. Looks like the kitchen was remodeled in the 70's or 80's. The P*7 wall oven is original, although I replaced the Harvest Gold oven door with a stainless steel version I got about 15 years ago off Craigslist.
I am wondering what generation this oven is.
It's Model JK190R3HT.
S/N RT644340G
4.6 Amp at 220 V.
It works perfectly although the temp probe and rotisserie accessories are missing.
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Post# 1086455 , Reply# 7   8/25/2020 at 07:23 (1,339 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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Hi Rich, I can not get that model # to come up, GE was sometimes funny on older model #s, if you post a picture of the controls I can better answer your question and date the oven.
There are no JK models usually would be a JKP if a P-7 oven in that time period, a JKP19 has electronic touch controls, is that yours, maybe post a picture of the model tag, they also never made a P-7 oven that had 220 volts on the model tag.
John L. |
Post# 1086491 , Reply# 8   8/25/2020 at 12:18 (1,339 days old) by sarahperdue (Alabama)   |   | |
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Was sometimes funny on the older model #s.
Yep. Our house had an older GE double wall oven when we moved in, and one of the doors had a cracked window. I called GE about it. When the rep couldn't find the model number in the database, he told me to buy a new oven. I bought a donor oven from the Habitat ReStore and replaced it myself. Since then, I've purchased many vintage and used GE products. I'm sure my getting mad and taking my business elsewhere has really hurt their business. Not. But it makes me feel better. Sarah |
Post# 1086575 , Reply# 9   8/25/2020 at 21:47 (1,338 days old) by SudsMaster (SF Bay Area, California)   |   | |
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John,
OK, here are the photos.
It is definitely a "JK" model, with no "P". You can also see that it's a P*7 model.
I got the voltage wrong; it's a 120/240 model (which is how this house is wired).
Let me know. |
Post# 1086578 , Reply# 10   8/25/2020 at 22:01 (1,338 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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Hi Rich, Your oven has the simpler 3rd gen oven control system with the mechanical thermostat, it should be mid 70s to early eighties, the only thing electronic was the temperature control for the meat thermometer.
I probably have all the stuff for the rotisserie and a meat probe for this oven if you need either.
These were very good ovens, the next generation GE wall ovens went to an electronic oven control system and used a lot of Roper parts as GE had acquired Ropers manufacturing fascicles, the ovens were never as sturdy or well built after that.
Julia Child used a double oven version of your oven when they filmed her book, The Way To Cook which I consider her best work.
John L. |
Post# 1086580 , Reply# 11   8/25/2020 at 22:03 (1,338 days old) by sarahperdue (Alabama)   |   | |
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Post# 1086586 , Reply# 12   8/25/2020 at 22:32 (1,338 days old) by SudsMaster (SF Bay Area, California)   |   | |
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Thanks, John and Sarah.
Yes, this oven, despite being about 40 years old, still works great. The only thing I've done with it is a slight adjustment to the temperature dial (easy).
I confess I don't use it all that much. Since I've gone low carb I don't bake bread much any more. And for roasting meat I use a rotisserie propane grill set outside in a covered patio area. But you never know. For frozen pizza I use a largish french-door bench-top Oster convection oven, which works fairly well if a bit unevenly. I just rotate the pizza half-way through to get more even browning. Also use the Oster for stuff like frozen pre-cooked chicken wings and shrimp.
Mostly in the past few years I've used the GE wall oven for cleaning cycle decontamination of burner grates and drip trays for the Frigidaire "Gas On Glass" 36" cooktop.
However recently I bought a big frozen beef lasagna at Costco, and it will probably be prepared in the P*7 once the weather here cools down. I could use the Frigidaire Compact 30 out on the enclosed patio, I suppose, but I've never calibrated that one.
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Post# 1086594 , Reply# 13   8/25/2020 at 23:47 (1,338 days old) by CircleW (NE Cincinnati OH area)   |   | |
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My cousin's had the double oven version in Harvest Gold when they lived in Memphis in the mid to late 70's. |
Post# 1086614 , Reply# 14   8/26/2020 at 02:48 (1,338 days old) by SudsMaster (SF Bay Area, California)   |   | |
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Post# 1086649 , Reply# 15   8/26/2020 at 10:30 (1,338 days old) by neptunebob (Pittsburgh, PA)   |   | |
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Was the first generation P*7 totally mechanical? In the video, the engineers refer to an "electric thermostat" rather than a "hydraulic" one. Now NASA having inventors submit ideas for a probe that can explore Venus that has to be heat resistant and some designers are going with an all-mechanical design because electronics cannot survive in the heat.
Also, with some modern self clean ovens, won't using the SC cycle fry the electronics? |
Post# 1086906 , Reply# 16   8/27/2020 at 23:37 (1,336 days old) by SudsMaster (SF Bay Area, California)   |   | |
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Post# 1087017 , Reply# 17   8/28/2020 at 19:17 (1,335 days old) by combo52 (50 Year Repair Tech Beltsville,Md)   |   | |
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Post# 1087347 , Reply# 18   8/31/2020 at 02:23 (1,333 days old) by SudsMaster (SF Bay Area, California)   |   | |
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Post# 1087407 , Reply# 19   8/31/2020 at 16:18 (1,333 days old) by kb0nes (Burnsville, MN)   |   | |
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>with some modern self clean ovens, won't using the SC cycle fry the electronics?
If they are poorly designed maybe. Hopefully they don't place the circuit board inside the oven cavity ;) I do know of a wall oven a friend had that failed the control board during a self-clean cycle. Hardly a fault of the electronics, that is bad design. Electronics sure get a bad rap around moisture and heat, both of which they are fairly unaffected by as long as its not extreme. I have one poorly designed RF amplifier I kept going for years. About once a year the output transistors would get hot enough to physically unsolder themselves from the PC board!!! Even though the transistors leads exceeded 360 deg F they never failed. |
Post# 1087446 , Reply# 20   8/31/2020 at 21:43 (1,332 days old) by chetlaham (United States)   |   | |
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Post# 1170062 , Reply# 21   1/21/2023 at 19:27 (459 days old) by SudsMaster (SF Bay Area, California)   |   | |
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John,
My error. The model tag says 240, not 220.
By my latest count, I have about 20 washer/dryers/dishwashers in my collection, not including the stuff I use regularly in the main house, and not including ranges of one sort or the other.
Couldn't find the harvest gold door off the original wall oven. Doesn't mean it's not hiding somewhere in the junk heap. Unlikely that I junked it, but of course anything is possible. Probably I stuck it on the one I got the stainless door from, just a matter of finding it. I just got a bit overwhelmed counting the 20 that I did just now. Next time I'll bring a pad to record all the particulars. |
Post# 1197823 , Reply# 23   1/24/2024 at 07:42 by SudsMaster (SF Bay Area, California)   |   | |
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