How to start the oven without timer - Rangemaster Classic 90 (Electric) Kitchen Range

A malfunctioning control panel or membrane can cause erratic behavior in your microwave oven. If the control panel is not registering the start command correctly, it may interrupt the cooking cycle. Try cleaning your membrane and control panel with a soft and damp cloth to remove the dust.
If cleaning doesn't resolve this issue, try resetting the microwave oven by unplugging it from the power source for a few minutes, and then plugging it back in.
The microwave may not generate the required heat to cook the food properly if the magnetron or high voltage capacitor is defective. This could lead to the timer counting down without any heating action.

Without a model number its hard to be exact. If your oven is older it will have a clock timer motor that turns the dials or flips the clock display cards. This timer has gears and bushings that will be annoying as they wear and start a vibrating hum or clicking-usually not worth tinkering with..it can be taken out and checked or replaced. Electronic timers of course don't have any moving parts to the timer, but have relays in the circuit to turn the oven on and off. They do not 'whir'. This is the likely issue.
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1) When oven turns ON, Power flows between the timer and the oven.
http://waterheatertimer.org/How-to-wire-pin-timers.html

2) For example the oven might be connected to pins 8 and 1.
Connect a light bulb to terminals 8 and 1.
http://waterheatertimer.org/images/10-pin-wiring-350.jpg

3) Since the H3CR timer is rated max 16 amps, I suspect the timer controls a contactor and is not directly attached to heavy oven wires.
So if max amp load on timer is 16 amps, then it is safe to add light bulb wire without line fuse between timer and light.
http://waterheatertimer.org/Fuseholder.html

4) Add comment and say what you are doing.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

On some ovens you have to pull the oven out of the cavity and remove the top panel of the oven to get access to the electronic timer control. On other ovens you only have to remove the panel which is behind the timer without removing the whole thing. Just slide it out a bit and have a look at the panel behind the timer.

I assume the display for the clock/timer is now blank. If the oven is still working the only thing you are missing is the clock. If you can't do without it you will need a new clock.
Most of the time the clock/timer stops working it affects the operation of the oven, the oven won't work. If this is the case you will need a new timer unless you can do without the clock/timer. If so a repairman should be able to bypass the clock with ease so that the oven will operate without the clock/timer.

hi there! I have a moffat stove and hopefully these instructions help you.
First clear out the racks in your oven. Take them out and remove any excess chunks at the bottom.
Then close your oven door and lock it by pulling the lock latch.
Now looking at your oven knobs [not your burner knobs] turn both of them so they are both on the arrow knob [your oven knobs should have small pictures on them and both should have arrows]
Now you need to set the time so in the middle of your oven their should be a timer and one start and stop timer on top of each other. Both timers go in increments of half an hour. So if you are starting your self cleaner at 3 move the dial to 3 or if you are starting at 3:30 move the dial to one tick after 3. Once you set your start timer, you need to set your stop timer.
Setting your stop timer, it is recommended to set it for 3-5 hours. I set mine for 4 hours. So then set stop timer to time you want the cleaning to be. If you set your start timer at 3:30 put your stop timer at 7:30.
The oven will start cleaning according to the time you set. The oven will get very hot. I recommend to not used the burners as the temperature goes to 500 degrees! You will smell an odor and that is your oven cleaning.... Hope this helps...

Without a load (food or water) to absorb the microwave energy the microwaves will bounce back into the waveguide and on to the magnetron antennae causing damage. Usually there is a lot of arcing and noise when there is nothing inside the oven cavity which alerts you to the problem. I cannot say for sure if it destroyed the magnetron.

buy new one magnatron is bad

You need to trace the power feeding the high voltage transfomer. Because the table doesn't turn, it implies that a door switch or safety interlock is the problem.