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Old 04-07-2009, 06:10 PM   #15
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Excel Owners Club
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Originally Posted by Roadking View Post
I saw Rockingtom's post of 0.6 amps for the heater, but I measured mine and I swear (memory?) it was upwards of 2 amps. I confirmed this by placing tape over the door connections and noting the difference.

So when dry camping to save my weak batteries I placed a piece of tape over the door connections, which was fine until I forgot about the tape. Later when cleaning the fridge I discoverd excessive moisture and small amounts of mold in the crevices of the door seal. Tape was removed and moisture problem was fixed!!! Memory problem still exists.

Thanks for the new insight. Over in the Excel Owners Forum Rockintom is pretty much the authoritative voice on all matters large and small (Just ask him). So, if by chance you catch him on this one and maybe one or two more, the guys may dub you SKIA II.

Where can I find the "door connections"? I've looked at both the freezer and the refrigerator doors and can't find anything that looks like an electrical contact. (Maybe SKIA knows. )

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Old 04-07-2009, 09:21 PM   #16
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I stand corrected on the current draw of the humidity heater. Checking my service manual it states 0.7 amps for the heater. This is a Norcold 1201LRIM which is a four door model. The fans draw 0.3 amps each (0.6 total). These are nominal draws at 12VDC. My memory failed me again!!

The humidity heater is attached to the left door and the electrical connection is via two button contacts located on the left door hinge side about 6 inches down from the top of the door. These contacts are brass in color and are about 7/16 inch in diameter. THere is a matching set of contacts in both the door and in the sidewall of the fridge and these make contact when the door is closed.

FYI -- when the heater is activated it will feel very slightly warm to the touch.... I'm guessing maybe 80 to 90 degrees F maximum.

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Old 04-07-2009, 09:31 PM   #17
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Some additional Norcold 12VDC info - If you nave an ice-maker and the heat tape on the water lines (note these are thermostatically controlled to come at around 35degreeF but this external mount location of the thermostat may not be ideal - mounting location might be too warm to be useful):

ice maker water line feed heat tape - 1.3A
water solenoid valve heat tape - 0.5A
water dispenser feed line heat tape - 0.2A

Total above water line heat tape = 2.0A @ 12VDC (these are all actual measured values)

The exterior (chimney vent) fans in my rig are rated (per label on the fans) at 0.4A @ 12VDC each, there are two.
2007 and 7/8ths Newmar Essex 4502
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Old 04-07-2009, 09:50 PM   #18
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Remember on this issue, as I mentioned, I just reported what my contact guy at Norcold service desk gave me. I copied the comments from his email and made them red in color. I'm just the messenger on this one. SKIA cover his tail on this one! Also remember, he got an IQ the hovers from 14 to 15! Ain't too darn smart, he's plenty happy! rockin'
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Old 04-07-2009, 09:57 PM   #19
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FWIW, my Norcold 841 nameplate says it draws 1.2ADC whether it is running on 120VAC or propane.

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