WHERE IS THE THERMISTER GO - LG LHD45EL Dehumidifier

there is NOT...

By your model number...
I bounce off of a lot of other (subsequent models (I presume))...

But your model does NOT resolve to any serious parts
USA domestic suppliers... not even good drawings!!

I tried appliancepartspros, easyapplianceparts, repairclinic, partsselect & searspartsdirect.com

Got spanked pretty good... Looked at related circuit boards... but none had any significant detail to determine a THERMISTER
FROM... Do not match

Time to get the ACTUAL NUMBERS OFF OF your thermistor...
and go to electronic houses... eBay, grainger... even RadioShack

In my humbled opinion...

FAD504DUD ENG10 12 FAD704DWD Dehumidifier Display Circuit Board Frigidaire...

Water Filters Lawn Garden Appliance Parts

PartSelect Appliance Parts and Repair Help

Find Your Appliance Parts

Had same erroe code in 2008. CH 01. Bucket Full light was flashing, but it was empty. Would not start. Called customer service and was advised it was most likely a compresser problem. In that compressoe was still in warranty took it to a lacal service center. Compressor was Ok, but had to replace Evap Thermister Board and Sensor. $120.00 in parts and $50.00 labor.
I am not an expert.
Good luck.

Had same problem in 2008. Had to replace Evap Thermister board and sensor. Parts $120 Labor $50.00.
I am not an expert. Good Luck!

What do you have the humidity level set at on your dehumidifier? The average is 65%. Make sure you do not have it set at 75% because if you do this could be causing it to keep the humidity so high.