crwdns2933897:0crwdne2933897:0

Duo Plus 5200 not brewing single but will brew a pot

What is the issue with a Duo Plus 5200 if will brew a pot of coffee, but not a single serving?

Thanks

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

crwdns2934109:0crwdne2934109:0

crwdns2853045:0crwdne2853045:0 crwdns2853046:0crwdne2853046:0
crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0