Welbilt heater doesn't heat contactor switch doesn't light

When switched on power is supplied to the heating element until the temperature reaches that which the thermostat is adjusted to and then the thermostat switches off the power to the element.

Whether electro-mechanical or electronic the thermostat isn't doing the job and as it is a digital control electronic thermostat that seems dead, I guess that is the part that needs repair or replacement.

I would try the thermostat one by turning it up to a higher heat. I feel the other one may heat on high but would not shut off. You would have to do it manually.

Is the thermostat turned down all the way? If not, you have to take the cover off and look inside to see what the trouble is. UNPLUG the unit first. Further diagnosis could require a digital volt meter. It could be a broken switch, corroded contacts on the thermostat, or the thermostat could be warped so that it never goes on.

Hi,

Check out this tip that I wrote about space heater problems..

DeLonghi Space Heater does not Heat

heatman101

If the switch has changed its color means it did burn out at one of the terminals. Yes, you can buy a new switch.
But if this is not the problem it can be that the thermostat is not working.
There are thermostats available.
But if the thermostat and the siwtch are not the problem it may be that the junction with the electrical resistance is burned up. This can also be replaced.
All items I found in Mexico City.
I do not think it is economically feasible to acquire the parts and replace them. Chinese made appliances or spare parts are not to be found for a good price and still are not reliable. Buying a new one is the solution, perhaps.

Similar problem here. But in my case, it was a blown fuse. There's an in-line fuse on the internal wiring of the heater. Take the control-side off (remove the bottom grey plastic bracket, then remove a sheet metal screw, then slide the whole assembly down off of the radiator). Where the elements go into the reservoir at the bottom of the radiator, the white wire should have an inline fuse connected to it. It will probably be covered with what looks like heat-shrink tubing. Snip, snip, and replace.

There is a bottom element and a top element so the elements could be dead.

More likey, there could be no power coming from the wall - there are switches on the front that need to light up or the thermostat could be set to off.

1st, check the electrical cord plug; because of the hielectric demand, thesaes plugs overheat and form a burn coating on the prongs that stops the hilevel of electric but allows a small level ofalaectric that still lights the lights but no power for heat.
2nd, the thermostat is not making contact: it is a bi-metal contactor that sometimes burns or loses its strength and no matter where you turn it it wont work. You can simply cross the terminals of the thermostat to see if you get electric flowing (you have to open the oen housing to do this.
3rd, the element could be burned-out or (as often happens) the connection to the heat element burns-off. Again, you need to open the end housing and look, or take it to a small appliance repair place.

This might be a re-branded De Longhi heater. Here is De Longhi parts website:
http://www.delonghi-accessories.com/models.asp?cat=143

Parts are also avail. from Fox International, though price is higher.