Kahoona
Super Member
Hi
A friend of mine has three Pelonis Ceramic Disc heaters which he loves. Pelonis no longer will repair them. All three will only work in a very low output. They have been repaired for this problem before. They should put out the required amount of heat to warm the area up to the selected temp and then lower the output to maintain it. They were a very good heater in their day, close to $150 then. He wants me to fix one of them. I said I'd try but this is not a simple 3 way switch and rheostat. Here is what I know:
The heat sensor does change impedance when the temperature changes.
The rotary function switch seems to work properly.
The fan spins.
The heating element puts out low heat, weather it puts out high I am not sure. I suspect the element is good since it is not a simple 2 speed but a variable one.
Here is what I suspect:
I suspect the variable resistor connected to the temperature dial among other things.
I wonder it there are other problems on the board.
Should I?:
Change out the VR or since half of the cost of a Mouser order is postage, just repopulate the entire board as I would do with an Amp power supply that age?
Can anyone tell me where to get a schematic or any kind of service manual?
Has anyone fixed one of these or have any suggestions? I am out of my element here but this is for a good friend and also a bit of a grudge match.
Photos and instruction manual attached.
Thanks in advance
Kahoona
A friend of mine has three Pelonis Ceramic Disc heaters which he loves. Pelonis no longer will repair them. All three will only work in a very low output. They have been repaired for this problem before. They should put out the required amount of heat to warm the area up to the selected temp and then lower the output to maintain it. They were a very good heater in their day, close to $150 then. He wants me to fix one of them. I said I'd try but this is not a simple 3 way switch and rheostat. Here is what I know:
The heat sensor does change impedance when the temperature changes.
The rotary function switch seems to work properly.
The fan spins.
The heating element puts out low heat, weather it puts out high I am not sure. I suspect the element is good since it is not a simple 2 speed but a variable one.
Here is what I suspect:
I suspect the variable resistor connected to the temperature dial among other things.
I wonder it there are other problems on the board.
Should I?:
Change out the VR or since half of the cost of a Mouser order is postage, just repopulate the entire board as I would do with an Amp power supply that age?
Can anyone tell me where to get a schematic or any kind of service manual?
Has anyone fixed one of these or have any suggestions? I am out of my element here but this is for a good friend and also a bit of a grudge match.
Photos and instruction manual attached.
Thanks in advance
Kahoona