Question about Stoves 720EF Electric Double Oven

1 Answer

Faulty lights and timer bleeper on neon clock display on front of electric oven.

The control buttons seem to work and there is a very faint glow on the neon display that is just about visible. The alarm beep is very weak. Do I need a new PCB?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Prodigy:

    An expert who has answered 500 questions.

  • Stoves Expert
  • 650 Answers

It is very possible the control board is going bad. Before replaceing the control board pull the connectors and reinstall them. There could be a bad connection causing the display not to lioght up completly. If that doesn't work then it looks like control board time.

Posted on Nov 27, 2014

3 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 250 Answers

SOURCE: Stoves 720ef electric double oven not working

According to the circuit diagram on page 31 of the handbook, power for the ovens passes through the clock. The power feed is direct for the actual clock but via a seperate Thermal Cutout for both the top and bottom ovens. I think it is highly unlikely that both Thermal Cutouts have failed at the same time. I would try turning the power off totally to the oven for a while and then turning it back on, set the time and ensure the oven is in manual mode. As the top and bottom ovens have seperate controls after the Programmer and both are not working, it has to be the programmer that is not extending the power through to the rest of the oven.

Posted on Jan 05, 2009

  • 250 Answers

SOURCE: Stoves 720EF oven controller/timer stopped

I haven't tried this myself but if you know what you are doing, then it is worth having a go! Firstly, if you need a new clock/timer for the 720, they are about £80 from espares.
Someone else has stated that a number of oven timers have an electrolytic capacitor which ages and cause the display to fail.. The following is from his post:-

The display went blank, and the oven would no longer operate.

By looking at the specification sheet for the timer, it appears the models vary chiefly on the series resistors installed in the mains supply. On the New World, the mains power goes through a 5.6K resistor both on the live and Neutral, making a total mains series resistance of 11.2K. Newer models presumably consume less power so need different series resistors.

Anyway, I managed to fix my timer. There was a relay, three resistors, a zero-ohm link, an ASIC (Application-specific integrated circuit) chip and an electrolytic capacitor.

Electrolytic capacitors tend to 'dry' over time. In other words, they wear out. The relay is usually in one state and not subject to wear. The resistors checked out OK with an ohmmeter. ASIC semiconductor chips tend to be very reliable. They only fail in times of surge etc, and the mains series resistors would definitely prevent that! This left prime suspect #1. The electrolytic capacitor.

The capacitor on the board was a 220uF 25V radial 125 centigrade electrolytic. These are extremely common components. Any radial electrolytic of 220uF and equal or greater than 25v, and with adequate temperature endurance will do.

I couldn't find anything over 85 centigrade endurance in my electronics box. Bearing in mind my cooker has a cooling fan, and the panel never feels hot, I took the chance on my 85 centigrade capacitor. Rated 220uF 63v.

De-soldered the original capacitor, and making sure I have the polarity correct, soldered the new one in. Polished the display, and all working like new!



As I said I haven't checked this and I presume you would get a replacement from Maplin. The standard radials are part no VH41R and VH43W and the higher heat DT64U. If you did do this you will obviously need to check if this fix is applicable ( is the capacitor accessable) and also the rating of the capacitor. Let us know how you get on.




Posted on Dec 23, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No power to oven (MCB tripped but has now been reset on) but temperature light to small oven glowing faintly. If any control is turned on then this glowing light goes out. Any Ideas?


Check the bulbs in main oven. Bulb blows and takes out circuit board. A new circuit board will set you back £250 to £300. It can possibly be repaired if you can solder. need to take out the board behind the clock and find the blown track. if you can solder a jumper across it you can get it working again and it will cost you nothing. I had to do this to mine and it has been working for last 3 years.

Jan 14, 2016 | Neff U1421 Double circotherm Electric Oven

1 Answer

Probe light on convection oven stays on. Clock won't display. Oven still works though.


Sounds like the control board is not communicating correctly with the rest of the unit, consult a professional.

Aug 10, 2012 | Frigidaire 30" Built-In Single Electric...

1 Answer

I have a Fisher & Paykel OS302. The temperature and oven mode selects are dead, no LED display, no operation. The clock module is working. This happened all at once, I tried to turn it on and both...


This sounds as if the electronic clock timer is in automatic mode. It must be in manual mode for the oven to work. Turn the oven on and play around with the timer controls/buttons. When the oven indicator light comes on the clock is in manual mode.

Feb 26, 2011 | Fisher and Paykel AeroTech OS302 Electric...

1 Answer

My GE wall Oven Model #jctp18ba1bb is not working.the board is blankm the only thing that works is the oven light.Is there any kind of thermal fuses etc. in this oven.thge control board was replaced 8...


When you say board I assume you mean the electronic clock/timer. This timer directly affects the oven operation. Even if the internal oven fuse is blown or the thermal overload is tripped the electronic timer and oven light will always work. If the oven light works and the electronic timer/clock does not I'd say that the timer/clock is faulty.

Feb 10, 2011 | GE Profile 30" Built-In Single Electric...

1 Answer

Having taken the oven out to fix a problem with the hob (720EF double oven and grill), reinstalled the oven and powered –up, the clock won’t come on and stay on, the oven and hob appear to work! Any...


Both the top and bottom oven will only work if a time (any time) has been set on the clock. Setting the time operates a contact to switch the power through. The only exception is the grill. This will work even if the time has not been set. So if the oven controls/lights and heating work, to me it means that the clock/timer is half working and the only thing that isn't is the display.
I haven't had the clock/timer to bits but a fellow blogger has said that in some timers there is an electrolytic capacitor that controls the display. When this fails as they are renowned for doing, the dispaly mal functions. If there is one then Maplin have some - VHR41W/43W and DT64U depending on value etc. Let us know how you get on.
If you need a new clock/timer they are around £80 from espares.

Jan 03, 2011 | Stoves 720EF Electric Double Oven

1 Answer

My Bosch double oven timer is not working. No clock, notimer, but the oven is working fine.


Sure this is the failure off the unit but make sure that the step down transformer for the power to the unit is faulty or burnt. If so replace the transformer. If power goes tto unit without display then the processor can be faulty . Change the clock timer. unit if you need the timings.

Sep 19, 2010 | Bosch HBN 452 / HBN 456 Electric Double...

2 Answers

Display light faded and now gone


Supposedly the electrolytic capacitors on the display board need to be replaced. See: http://applianceguru.com/forum1/18842.html

Jan 15, 2009 | Thermador SC302T Electric Double Oven

2 Answers

Neff Oven


It appears that the timer has gone faulty, possibly because of a short in the bulb holder, which probably explains why there is no display and the main oven not working. the top will still work as it is not controlled by the timer.
the solution hear would to be fit a new timer.

Sep 30, 2008 | Neff U1661 Double circotherm super...

1 Answer

Burners and oven wont get hot and light wont come on


The input power is incorrect. The neutral connection may be missing

May 22, 2008 | GE Profile JTP18 Electric Single Oven

1 Answer

FAULTY TIMER/CLOCK


I found mine did the same I pusshed the face and it came back on. It appears fault within circuitry of clock and will need to be replaced

Dec 14, 2006 | Smeg F170 Pyrolytic Stainless Steel...

Not finding what you are looking for?
Stoves 720EF Electric Double Oven Logo

94 people viewed this question

Ask a Question

Usually answered in minutes!

Top Stoves Ovens Experts

ashburton

Level 3 Expert

417 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

yadayada
yadayada

Level 3 Expert

75822 Answers

Are you a Stoves Oven Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...