Whirlpool dehumidifier Mod AD70USS1 The diiagram

You need a new humidistat. There are two here, but not sure if you your machine

https://www.fix.com/parts/heating-and-cooling/dehumidifier/whirlpool/

There are numerous listings on Amazon, but all unavailable.

https://www.amazon.ca/Kenmore-Whirlpool-WP1168670-Dehumidifier-Humidistat/dp/B077B1VZSV

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Hey friend, thank you for your post!
I understand that you would like to remove the cabinet within your Frigidaire dehumidifier. Typically, the cabinet is not accessible. If you need to access anything internally within your dehumidifier I would suggest seeking assistance from a professional. Best regards! -Matt

Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

Hi,

Here is a tip that explains what can be happening to make the dehumidifier showthat the bucket is full when it is not.

Dehumidifier Problem It shows Bucket Full

heatman101

If you haven't already, clean the filter after it has thawed. In addition, the coils behind the filter may need cleaning.

Turn the unit OFF & Unplug it. Remove the filter and the upper half of the front of the cabinet. Clean the cools with warm water and dish washing liquid. Rinse with a damp sponge, dry the coils and apply a light coating of WD40. Reassemble the cabinet, plug the unit in, turn it back ON and take it for a test drive. Be sure to clean the filter at least once every 2 weeks.

According to the Owner's Manual for your model, the fan will run continually, if the unit is set in continuous mode or if the unit is in defrost mode. Once the unit senses a rise in the humidity level, the compressor will start up again. Also, a dirty or clogged air filter will cause the fan to run more that it should.

Hope this helps you troubleshoot and solve the problem.

In answer to all your questions. If it's working properly, Yes.

indicates a gas leak and there is insufficient gas in the system

Hi,
Here is a tip that I wrote to help people with just that dehumidifier problem..

Dehumidifier Problem It shows Bucket Full
http://www.fixya.com/support/r4688381-dehumidifier_problem_shows_bucket_full

heatman101

Might try Manual @

http://www.appliancefactoryparts.com/dehumidifiers/helpcenter/ownersmanuals/fedders/