Alde on 2018 320s: not heating after de-winterizing

we used our alde last fall then winterized for winter. Last week we dewinterized and everything is working but the alde. I am trying to troubleshoot but no avail and looking for support. 
Fuse not blown, hooked up to 30amp shoreline power, only using electric (not combo electric/gas), power at receptacle, hose levers all in proper position according to manual. I am not sure how to check glycol but I did not drain that last year. 
What should I check next?

Comments

Sign In or Register to comment.