More likely that the ammonia "smell" is added to the refrigerant to warn you that there is a problem. Definitely go to the web sites to see if your refrigerator is on the recall list.
Also, check under the refrigerator, if you can. There may be a panel or a heater, or something directly under the refrigerator. What I found, is that a leak in the refrigerator could rot out the floor under it.
07 TM 40D;ISL 450 Cummins(upgraded). Very happy w/coach
Gnarly toad to scoot around.
Geocaching, hiking, fishing, National Parks, Civil War sites.