Doesn't heat I made a batch of popcorn and about 30 min later tried to make another. Sprayed Pam onto plate, added popcorn and turned it on. These are the same things I always do. The arm turned but when the corn didn't pop I checked the plate. Cold. This was a Christmas gift so I've had it less than a month.

It is helpful to know brand and model regarding a query. The popcorn popper probably has a thermal switch to prevent overheating which may happen if the popper is over full. It is a cut off. And you generally have to wait about 15 minutes or a bit more for the unit to cool down so it works again.

wait longer between batches

That model has a thermostat (also called a high limit) that is set at 450F. it should produce a popping cycle of 3 mins, and yes will burn popcorn if you don't dump it fairly quickly.
The speed it heats cannot be too fast, there is only so many watts in the heat element. it may go to hot, but never to fast.
The best way to test temp is time the 2nd popping cycle with a stop watch. the second batch should be 3 mins +/- 30 seconds. if it is 4 mins it is too cold. a 2 min popping cycle is to hot.
A popper that is too cold is also popping poor quality popcorn, higher amount of unpopped kernels, and small chewy popcorn.
Measure carfully when doing time test popping. That model is 2oz oil, 6oz popcorn, and 1 tsp salt. Start timing when you put ingredients in, and stop when you dump it. The kettle must be hot, that is why you time the 2nd batch.

Old popcorn is the first thing to check, and that you are measuring correctly. 12oz of popcorn is the correct amount in a 3 min popping cycle. always time the 2nd batch.

That model popper has 2 heat elements, and 2 thermo stats that control them. If the first 2 things to check are good, then you dropped a thermo stat or heater and it is operating on 1 heater instead of 2.

Treat Time Model TPC-603

Turn on light and popcorn buttons, for 2 minutes to heat up the popper's kettle.


Then turn off the popcorn button, this stops the turning gears while loading oil and popping corn.

Warning the stainless steel kettle will be hot. Might want to wear an oven mitt.
1 tablespoon of oil (I use coconut oil) and 1/3 cup of popping corn. This makes est. 6 to 8 cups of popcorn.

NOW turn on the popcorn button so the gears start turning, this turns a wire on the bottom inside the kettle to keep the kernels from sticking or burning to the bottom.

If making multi batches, during the process it states in the manual to allow it to cool 5 to 10 minutes. I normally pop 3 to 4 batches and then let it cool down.

When finished popping, turn off both the light and popcorn buttons.

your problem is in the instructions.. you need to make it a little hot, means run it on empty for a few min. stop the machine, and add 2 tablespoosn of veg. oil your fav. oil, not olive. add enough pop corn to fill the inner circle surface of the bottem plate, then run it again until the bowl is full.. maybe 5 min. You should have perfect bowl full of pop corn.
enjoy :-)

There's a thermostat inside that controls the temp of the heating surface. It has to thoroughly cool after making a batch. Probably 10 to 20 minutes.

It's best to put the popcorn bag on an upside-down paper plate, and be sure it's off-center, not in the center of the turntable.

Raising the plate and keeping it slightly off center allows more even heating and also protects the glass tray from overheating repeatedly in the center, which can eventually lead to its cracking.

If it still won't cook properly, the magnetron, cooling air flow or power line voltage may be less than it should be.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

It's normal for the temp to cool down when putting oil in. The oil is absorbing the heat from the kettle. If it takes more than 5 minutes for the first batch, and more than 3.5 minutes for the following batches, it may have a bad element.
Try calling their tech support at: 773-433-7450 or Try finding a local dealer at:

http://www.cretors.com/dealers.asp

http://www.concessionpalace.com/concession-tutorials/P-60_60_Special_Uncle_Walts-1866_2085_2086_2656-popcorn-machines.pdf