Need help with thermistor

[wileecoyote]

I am trying to find a replacement thermistor for my Norcold DE704D. I have yet to find an actual replacement part. If I can find a suitable alternative I can solder to the wires and use that would be great. All you EE's here should be able to do this. There are no specs on the old one and the wiring schematic don't really help. Underneath is the temp-resistance values. I believe it only works on the 12V DC operation.

 

[Don Sr]

Got my 1990 thermistor a couple of weeks ago at rvdealership.com - 800 755-4775. Maybe worth the call as all the EE seem to be boating. Looks identical to my DE251 thermistor

 

[fc3]

Google is your friend. Search for NTC thermistor.

 

[wileecoyote]

Google is your friend. Search for NTC thermistor.

Frank, I looked in Newark, but they have 906 NTC's listed, I was hoping someone would have a more specific model in mind. At least to narrow down the field. I may contact RVdealership.com. I was under the impression, from looking at the parts listings, that it was only serviced as part of the harness.

 

[wileecoyote]

Called PPL motorhome and they don't list the Condensor Themistor. The wiring harness, which I figured would include the Thermistor is no longer available. He said he could however, sell me the whole cooling assembly. I passed!
Found this at Newark and appears to be very close. I'll find out and let you know.
http://http://www.meas-spec.com/downloads/44006.pdf

 

[wileecoyote]

Update:
I soldered in the thermistor I got from Newark, and checked the resistance values. All looked OK. All inputs to the transformer appear to be good, but no output on the blue wires. Not sure if it's the transformer or the board. I'm thinking I can probably find a transformer, but not worried about it now. Just figured I would update that the thermistor didn't do it.