Repair a Jenn-Air wall oven control?

[urodoc]

Model WW27210. The "button" (flat plastic pressure area on the control panel) for temp/time up doesn't work. I thought it was the circuit board (part number 71002215), but on disassembling see that a plastic "pusher" on the front plastic frame of the circuit board is broken. See pictures. Any suggestions on how to repair the silly little plastic pusher? I think just gluing it won't work since not enough joining area. All parts out of production. TY.

 

[PJB12]

Part Search:
Sometimes one can find the obsolete appliance part that's needed on eBay or Bonanza. The part might be used or might be an aftermarket clone. Try searches with the part name and the appliance model number and search with just the part number.

Creative Repairing:
You might have luck by making a hinge for the operator out of VHB tape or other high strength tape.

Maybe E-600 glue will work to hold the part on. It's flexible when dry.

A glue/tape idea messer-upperer is if the plastic is HDPE. Adhesives & tapes generally don't stick well to HDPE. How to find out? Look for a recycling emblem on the bezel or simply try it. (HDPE is recycling symbol #2).

If you're steady of hand, perhaps you can make a flexible "hinge" out of some thin plastic or metal and screw it as a flap to hold the operator in place. The metal or plastic hinge will flex when the button is pressed.

Out Sourcing:
And, it certainly will be possible to have someone with a 3D printer "print" you a new panel. There are lots of people on 3D printer forums that do such projects quite inexpensively- sometimes free for the challenge.

I wish you good luck. You'll get it going! (And let us know how the job went)
Paul

 

[urodoc]

@PJB12 TY. I'd looked on ebay, no one sells either the plastic frame or the entire unit (they only offer send-in repair of the circuit board itself). I'd thought of the 3d printing. The plastic looks like polystyrene, so maybe model glue will work, or I'll try E-600. My idea currently if no one else has suggestions is to glue a flat plastic bridging across the front of the empty circle, and glue the pusher head to the underside of that, rather than try to rely on just that little hinge point. Difficulty may be that the travel on the circuit board physical button is only about 1mm, so the bridge might push the pusher shaft to push it (I suppose in that case I could try filing the pusher shaft down a little. Shame that the whole oven function relies on a 25 cent piece of plastic, but then again it's 18 years old. TY again.

 

[PJB12]

Your plan sounds great, Urodoc!

I've had very good success on polystyrene with Weldbond Multi-Purpose. The plastic should be scarified a bit and it has a rather long cure time, but the bonds were surprisingly strong.

Let us know how it works out!
Paul

 

[urodoc]

Your plan sounds great, Urodoc!

I've had very good success on polystyrene with Weldbond Multi-Purpose. The plastic should be scarified a bit and it has a rather long cure time, but the bonds were surprisingly strong.

Let us know how it works out!
Paul

Ty again. Since I wasn’t sure it was polystyrene, I used E-6000 to fasten a bridge of 35mm film sonce it’s flexible, and glued the pusher to the underside. Had to make a cople relaxing cuts so it had enough movement, but it now seems great. Could be good forever. Saved $300 for board repair, and even then some of them said they couldn’t repair anything but the circuitboard itself. Or saved $1000+ for a new oven, for $3.87 total.

 

[Sparky617]

What is the full model number? www.repairclinic.com has parts but separates them out by a longer model number. The one I looked at didn't have the control panel you show. You can go there and enter in the complete model number and find parts.

 

[urodoc]

What is the full model number? www.repairclinic.com has parts but separates them out by a longer model number. The one I looked at didn't have the control panel you show. You can go there and enter in the complete model number and find parts.

Ty. I had actually looked there, shows as “Unavailable.” Model WW27210B, part 77002215.

 

[nobes]

@PJB12 TY. I'd looked on ebay, no one sells either the plastic frame or the entire unit (they only offer send-in repair of the circuit board itself). I'd thought of the 3d printing. The plastic looks like polystyrene, so maybe model glue will work, or I'll try E-600. My idea currently if no one else has suggestions is to glue a flat plastic bridging across the front of the empty circle kelownaproappliance.ca, and glue the pusher head to the underside of that, rather than try to rely on just that little hinge point. Difficulty may be that the travel on the circuit board physical button is only about 1mm, so the bridge might push the pusher shaft to push it (I suppose in that case I could try filing the pusher shaft down a little. Shame that the whole oven function relies on a 25 cent piece of plastic, but then again it's 18 years old. TY again.

For repairing the broken plastic "pusher," you might try creating a small brace or reinforcement using epoxy putty or plastic welding material to increase the bonding area. You could also consider 3D printing a replacement part if you have access to a printer or look for someone offering 3D printing services. If none of these options work, modifying the button with a tiny mechanical switch behind the broken pusher could provide a more durable solution.