Heat will not come on unless i put a piece of ice on the thermostat

Sounds like the float switch is tripped. Check the drain for a piece with 2 wires. Remove and inspect. Shop vac drain until clear, put float switch back in. Replace batteries in the tstat

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first unplugg it let melt ice then set thermostat lower and clean all the ice and water

if antifreeze level cant be mainained then it needs fixed..it may have a blown head gasket or a stuck thermostat.. what makes you think its the radiator unless there is fluid under the car?//put a large piece of cardboard under the engine and see what falls on it..

if its filling with water then the freezer temp is ok ( must be 15 deg or colder ) so you must have a bad icemker heat . . its best to replace the icemaker as the cost of part sometimes will cast more .. and unless your handy ice mkers are not to mess with unless you know them .. mm

Depending on what type of Thermostat you have, it is usually as simple as setting a jumper for Electric heat instead of gas.
If you have a digital Thermostat then turn off the power to the Air handler and remove the thermostat. Look closely at the small jumpers and make sure your jumpers are set to elect. and not gas so the fan can run in heat mode.
If you have a standard heat cool mercury switch then same as before with the power and unscrew the thermostat, and where the yellow wire is connected if there is a factory with on the yellow, then move the factory wire to the (A) and put the yellow wire back on the (Y).

Good Luck!

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Wake up one morning and Boom no ice left in the bin. What happened and What can I do to fix it without calling someone? Some ice makers will get a piece of ice in the wrong place and jam the extraction. Get a hair dryer and heat up the ice maker to release the fouled ice cube and that baby will start going. No water in ice mold?Do this easy test: pour some water in the ice maker mold and wait. If it kicks out a batch, but it has no water in it, most likely the water valve is bad. Watervalve for SxS box Since it is the cheapest part and you can do it yourself replace it. If it turns out you need a new ice maker then you have a new water valve already to go with it. What if the ice maker has ice in it but won't harvest any? One cheap and easy item for the do it yourselfer to replace is the ice mold thermostat. Check for voltage between T and H if you have 120 volts then the bi-metal (inside that ice mold thermostat) is bad. If it's good you will have 0 volts. Ice mold thermostat Located in the plastic housing and seated against the ice mold is that thermostat. This looks intimidating but is easily fixed by anybody who could change a spark plug. There is no wiring.

The waxy piece has a clear plastic bracket, if its not connected, look around your freezer. The waxy piece fits inside the bracket, and attaches to the ice maker, just in front of the ice tray.

The white wire fits inside the waxy piece. It is the thermostat that tells the ice tray when to dump the ice.

This is impossible to feel around for, so you will need to remove at least the bottom freezer compartment as well as the ledge piece from just inside the freezer door. If you are a relatively thin/small person, you can extend the top tray fully outward, and slide underneath. Looking up at the ice maker, the plastic bracket should have a little prong. This prong will attach just behind the ice maker, with the thermostat facing the ice tray.

It goes on the bottom of the ice tray and snaps in that is the sencor that tells when the ice is frozen

Keeps on beeping? Every 3 to 4 seconds? Try putting the thermostat wires together. An open bin thermostat will cause this problem and the board see it and starts beeping.