E9 error code on Noma dehumidifier

How to fix an E9 error code on a Noma dehumidifier. I think I need to replace the sensor

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Hi @markwillcox,

What is the model number of the dehumidifier?

Have you tried cleaning the sensor with canned air or a soft brush?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0