It's a long shot, but I thought I'd ask the question anyways in case someone knew...
In my curing fridge I have an Eva-Dry peltier dehumidifier like this one:
http://www.ebay.com.au/itm/New-Eva-Dry-Petite-Dehumidifier-Thermo-Electric-Damp-Dry-Out-EDV-1100-/350779085065#vi-content
Recently, while I can hear that it's running and the light is on, there's no moisture collecting in the drip tray below. As such, the humidity in my curing fridge is getting out of control, generally around the 80% but sometimes up to 90% as I've now hung a breaola in there along with the salami that were drying.
As a temporary fix, I've cracked open the door on the fridge and I have a PC fan circulating the outside air, but I'd like to fix the problem with my dehumidifier, as it has worked well for the last few years.
Anyway, I've opened the dehumidifier up and checked that it's running. The front cooling fins are measuring 8.6C inside my house (where ambient is around 20C), so the thermopeltier side is working. It just doesn't seem to be condensing anything on the cooling fins! My curing chamber generally runs at around 12C. I couldn't see that any ice had formed on the cooling fins.
Has anyone had similar issues with any other dehumidifiers and have any tips or fixes?