JM250DF1BB General Electric Range - Instructions

Very easy repair, Pulled burner coil out, removed old burner bowl. Put in new burner bowl, plugged burner coil back in... easy as 1,2,3

Removed burner element and put in bowl

This repair is EASY if you know how to use an ohm meter. If not, seek help for this step.

SYMPTOM:
The oven (JKP27WOP3WG or JKP27WP3WG and many ovens like it ) was not getting hot enough. Verifying the cooking temperature with an typical oven thermometer, I was able to determine that the oven was cooking temperature was about 150 degrees to low.

FAILURE POINTS:
There are two logical failure points (1) The oven sensor ( WB21X5301 about $75), or the (2) the controller board (PS238233 about $252). In my case it was the controller board. When replaced the oven worked beautifully.

REPAIR:
As with any repair, you MUST DISCONNECT POWER TO THE UNIT BEFORE SERVICING!!!

Pull oven from the wall:
- Disconnect power by flipping the circuit breaker to the OFF position.
- Remove the top flange / cowling from the top of the oven (it just pulls off)
- Remove two screws under the top flange / cowling
- The whole unit easily slides out, but it is highly recommended that you use two people to place the oven on the floor.

As a diagnostic between these two parts, if the oven sensors measure approximately 1.1K ohms of resistance at room temperature, then it is probably not the sensor. The oven sensor wires are connected to two white wires that run up to the controller board. You need to disconnect the oven sensor to make the measurement. You may either completely remove the oven sensor by cutting the wire (be sure to allow yourself enough slack so that they may be safely reconnected) where it connects to the white wires, OR, (preferred method) if leaving the oven sensor partially installed,
- Remove the top sheet metal cover (10 screws)
- Remove the service connect cover (2 screws - this is where the main Power cord comes into the unit)
- Disconnect the white wires from the controller board (this connector which also includes other circuits is on the left side when looking at the controller board).
- Remove two screws from oven sensor but just let in dangle down so that you can put the sensor in the ice water / boiling water.

Measure the resistance under the following conditions. Your ohm meter should read APPROXIMATELY...
- 1.02K ohms in ice water
- 1.09K ohms at room temperature
- 1.36K ohms in boiling water.
If you get approximately these readings, then it is NOT the oven sensor. If that checks out then re-install the sensor AND the connector.

If it is NOT the sensor, replace the controller board.
- Take a moment to write down the color of the wire to the LETTERING (N, L, G, C / COM,,,) on the controller board. The connectors are in different locations on the new controller board so the wire color to the letter designation is significant.
- Carefully remove the wires one at a time
- VERY carefully remove the keypad ribbon cable from the right side of the controller board.
-- The ribbon cable will disconnect by releasing some little pressure clips on the side of the connector.
- Remove the controller board (4 screws)
- Install new controller board (4 screws)
- VERY carefully connect the keypad ribbon cable on the right side.
-- Make sure that the connector is in the OPEN position first, then,
-- Slide in the cable ensuring that all parts of the ribbon made it into the connector, then
-- Press down on the connector locking tabs.
- Reconnect each wire to the correctly lettering on the board.
-- Again, the connectors MAY BE in a different order on the replacement controller board. Match color to letter.
- Reconnect the (5 wire?) connector that includes the white oven sensor wires.
- Make sure everything looks normal, (i.e. no wires are pinched, remove tools from top of oven area, etc.)
- Re-install top cover.
- Re-install service connect cover.

You can test the unit while it is out of the cabinet,
- Make SURE that all sheet metal covers are in place.
- Flip power breaker to "On".
- Test that oven gets to the desired temp.

Watched a repairman do it the last time for $200.00. This time I unplugged the stove, unscrewed four screw nuts holding the upper rear cover, unplugged old wires, reconnected new ones, fed them thru to the front, attached them to the new block, screwed the block into place, replaced back cover, stuck the element into place, made my little brother plug it back in and turn it on first. It worked. Cost me $20.00 to do what the repairman did the last time. I also replaced the reflector pans. No-brainer.

Pulled out burner and put new bowls in. Looks like a new stove!

Took 5 minutes to replace the 4 bowls. Ordered the bowls one day & they arrived the next day All went perfect.

Remove nobs from both switches.
Pull out the range (the hardest part).
REMOVE THE POWER PLUG FROM THE WALL
Remove 7 screws with nut driver and take off upper back panel.
Remove 2 phillips screws from front, they hold the switch brackets.
The new switches don't fit in the bracket so discard the bracket keeping the screws.
Removing 1 wire at a time from the old switch transfer to the new noting the letter/number ie "H1 P1" combos they are all there just not in the same places on the new switch.
When wiring is complete, using the bracket ,screws from the front screw on the switches.
Replace the back panel with 7 screws.
In my case the old nobs did not fit the shafts of the new switches. I found some at the local hardware store. I bought 4 for $0.29 each! I expect to be replacing the other burner switches shortly.

unplugged unit pulled it away from wall took off the backplates traced wire to plug replaced with part ordered very smooth operation. the most impressive thing to me was i ordered part on computer and it was at my door in 30 hours awesome.

I removed the rear cover from the stove then removed the knob and two screws on the front panel that hold the control in place. I then took the wires off the old control one at a time and placed them on the new control. Then I placed the control in position and tightened the two screws on the front panel, replaced the knob and screwed the back panel in place.

first slide out range from wall and unplug it. then remove the rear panel, it is about 6 or 8 1/4" screws. remove the selector knob on the front of range and then remove the two philips head screws. this is how you remove the burner controller. hold the new controller next to the od one and one by one take the wires off the old one and put them on the new one. re-assemble and you are good to go.

First I removed the two screws that hold the element in place. I then pulled the element out about 3 inches and disconnected the two wires

After unscrewing the old heat sensor from inside the oven, I pulled the range away from the wall, got behind it and removed the small panel over the heat sensor. Naturally, the plastic clips connecting the heat sensor to the range wiring wouldn't come apart, so I eventually had to simply pry them apart with two pliers. Then, naturally, the new plastic connector clip on the replacement part didn't match the clip from the range, so I had to cut off both receptacles and strip the wires, then used the provided wire nuts to make the connections. After that, it was easy, just secured the heat sensor inside the oven and replaced the panel. I didn't push the range back against the wall until I tested the repair. It worked fine!

The known problem: a short occured between the surface element and the INF switch. After replacing the wire between the surface element and INF switch. The surface indicator light remained on - indicating a power surge/spike. Prior to removing the old INF switch I disconnected the wires from the old switch one at a time and plugged each into the new switch terminals. Then I removed the knob from the front of the control panel and the 2 screws holding the old INF switch in place. Removed the old switch and replaced it with the new switch. Reinstalling the 2 screws and the knob. Surface indicator light was no longer illuminated and surface element works fine.

The most obbious suspect is the upper oven fan. Turned off power circuit breaker. Removed two philip screws at top of control panel and lowered the panel. Using the 3D view of the oven on this web site I located the fan limit switch. Jumpered the limit switch. Turned power on and the fan ran. That proved the switch was defective and not the fan. Replaced the limit I purchased from Partselect.com.

Please note* My life career was electrical. I used the schematic that came with the oven to determine that the limit was the only control between one of the 240 volt lines and the fan. Thus I knew it was safe to jump the limit.

If you are in doubt, seek some advice.
Good Luck, Arno

The first step was to determine whether the problem was with the fan itself or the switch. I did this by opening the back cover and using a Volt meter to verify that the fan was not getting power. (I could have skipped this step.)

Next, I unplugged the range, closed up the back cover and lifted the range hood by removing two hex head screws that are just inside and on either side of the top of the opening in the range door. Propping the hood open, I removed the connector leading to the switch, then pushed the switch out the front. Inspection showed that the switch was damaged so I closed up the range and ordered the part from Part Select. Once the part arrived, it was a 15 minute job to unplug the range, lift the top, install the new switch, and close up the unit.

Caution. On starting to install the switch, I failed to unplug the range and my finger brushed one of the hot contacts leading to the switch. Thankfully, I was not injured. Do not repeat my mistake on this issue. Unplug the range even if you're only installing this simple switch.