Icemaker drain valve

[Jason Worman]

Hi All,

Have gotten around to getting icemaker up and running and found icemaker drain valve. What does this do and should it be opened or closed when icemaker is running? It is the original Dometic 1070 ice maker. Thanks

[Bill Lampkin]

Jason, I've never seen a drain valve on an icemaker, and we have had Dometic fridges on one rv or another for 30 years. Not that I can't learn something new, but.....
Are you sure the valve is not actually the fresh water supply to the IM? The fresh water supply is 1/4" tubing.
The only 'drain line' I know of on a Dometic is the line that drains the condensate from the fins on the inside of the food compartment. No valve on that line (3/8" or 1/2" if I recall). 

[Jason Worman]

There are two brass  valves, one says water shut off and further down the line the second valve says ice maker drain. Strange

[Bill Lampkin]

Could be to drain the fresh water line to the IM for winterizing. Brass valves, too expensive for OEM, previous owner may have put the valve in.

[Jason Worman]

Bill,

It sounds reasonable. The appliance guy took a look at it and thinks the valve is to drian the line for winterizing the coach. He said normally the valve should remain closed during regular operation. No ice forming yet in maker so will see what happens.

Jason

[Bill Lampkin]

Jason, It might take a while to get your first batch of ice, the freezer has to be very cold, this triggers a snap switch in the icemaker that starts the water flow and icemaking cycle. You'll hear the ice dump into the bin, I wouldn't open the freezer door until you hear it dumping ice. And throw away the first few batches of ice while the system cleans itself.

[Jason Worman]

Bill,

Thanks for the help today

Jason