| Dometic refrigerator condensate hose [message #354605] |
Mon, 11 May 2020 13:44  |
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Richard RV
Messages: 631
Registered: July 2012
Location: Full-timer for 12 years, ...
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I've been trying to diagnose my Dometic refrigerator's increasing interior temperatures. I'm in Phoenix and the coach has been baking in the sun, so some rise in temperature is expected. In my searches I've run across numerous references to a couple of condensate drain hose related issues.
The first is whether the drain hose has what Dometic calls a "check valve" inserted in the end of the hose. Shown at the bottom of page 23 in the diagnostic manual:
https://fourwheelcampers.com/NewDometicRefrigeratorManual.pdf
It's not really a check valve allowing one way flow, it's simply a plug that has some holes drilled in it. My refrigerator did not come with one and I've been using it without one for a few years.
The second is whether the refrigerator condensate house has a loop or S-curve in it to hold water and act similarly to a P-trap.
My questions:
- Does your Dometic refrigerator have such a condensate line check valve/plug, and/or in your experience are they standard?
- Do you loop your condensate line or have you seen looped lines?
- If you added the plug or loop did that actually have an effect on refrigerator cooling?
Thanks in advance.
Richard
'77 Birchaven TZE...777;
'76 Palm Beach under construction;
‘76 Edgemont waiting its turn
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