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07-06-2020, 08:45 AM #11
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Well, after two days of no problems, the 1210 started blowing fuses again last night. I'm down to my last 5 AMP fuse until I can get to Walmart!
So far, no luck calling Theatford/Norcold. 25 minutes of on-hold elevator music. Will call GD next.
Looking at the schematic, I'm surprised that the fan supply is routed through the circuit board. The fans could have been run off the battery, with a separate in-line fuse, and controlled by the same fan temperature switch (schematic legend "O"). I may mess with that when I have some time.
Right now, I have disconnected the fans again and using a temporary 120VAC fan on the lower vent
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07-06-2020, 12:38 PM #12
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This is a guess as to why they are controlled through the circuit board, rather than as you described above. If they are connected and controlled only by the temperature switch, they could/would possibly come on even if the refrigerator was turned off, as in when you aren't using the camper. This would of course eventually drain the battery or batteries in the camper unless you are plugged into power when the camper is stored. The way they are wire now is that the refrigerator has to be turned on in order for the "K3" relay to operate and then allow power to the temperature switch, which then turns the fans on. If you decide to "rewire" it like you mentioned above, I would make sure that you add a switch somewhere in order to kill power to the fans so that the temperature switch doesn't turn them on while parked and not using the camper. Hope this helps.
2016 F350 CrewCab Dually
2018 Momentum 394M...Heavily Modded!
2023 Suzuki GSX-S1000 GT+
Excessive Payload is a Wonderful Thing
"If it ain't fast....It ain't Fun"
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07-09-2020, 06:56 PM #13
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Did you get an answer / resolution to this? In particular, why does the 5A F1 fuse keep blowing and what is the permanent fix? I am having this issue now and I am 5 days from home with a planned longer stay. No mobile Techs in this area are operating with COVID guidelines in place, so I’ll have to break down and find a dealer I suppose.
Home is where you park it!
2021 Solitude 380FL
2014 Silverado 3500HD LTZ DRW 6.6L Duramax Allison 6 Speed
RVing since 1996; Full Time since 2018
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07-15-2020, 05:04 PM #14
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My fridge did the same thing. After taking it in, I was told the relay had gone bad as well as the cooling fans. Fans were smoking and drawing 15 amps. Waiting 3-5 weeks for parts now and have to use coolers for the rest of the summer. I’ll be ordering those Titan fans today!!!!
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07-15-2020, 06:48 PM #15
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- Jul 2020
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- Eastern Ks
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Had same issue 3rd nite out on 2021 337RLS found debris in one of the fans kept blowing 5 amp fuse. Cleared debris so far so good.
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07-15-2020, 06:54 PM #16
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I have a Grand Design 385gk. Purchased October 2019. Norcold refrigerator 2118sst. Never worked consistently since we got it out this spring. Brought it to a factory repair center for norcold. Norcold is requesting 8 hours tests x 2. Dragging this feet while we're in motel rooms. Call grand design and emails, since May getting no help or no sign that gd is willing to help. Requested that they Jack up Never cold Norcold. No results! Email to gd vice president McCarthy, no result no answer. Wish I could some indication that gd or Norcold cared. Right now thumbs down. What do I do.
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07-16-2020, 07:10 AM #17
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With the Titan Fan kit, is there a concern that it would blow out the pilot light if you were running on LP?? When it is hot, I have found running on LP seems to work better than electric with the AC units running. Also, where did you get the DC source for the Titan fans?
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08-15-2020, 02:17 PM #18
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I asked this question in another thread also, so I’ll hope for a response from at least someone... Did you install any type of fusible link, etc between the 12v source you used and the fan kit controller? The 12v supply for the Norcold 2118 fridge control board in our unit is on a 15A ATC fuse back in the master 12v Control Panel. If I tap into that steady source for the Titan kit, will that be too much current for the Titan controller?
Home is where you park it!
2021 Solitude 380FL
2014 Silverado 3500HD LTZ DRW 6.6L Duramax Allison 6 Speed
RVing since 1996; Full Time since 2018
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08-15-2020, 03:28 PM #19
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Looking at the Titan TTC-SC22(B) -120mm kit, it shows:
Rated Voltage: 12V DC
Rated Current: 0.56 A
So less than 1 amp normally.
You could place an small inline fuse on the 12V to the Titan if you wanted.
ATO/ATC fuses like used in the DC Panel go down to 1 amp.
Like:
Blue Sea Systems Waterproof in-Line ATO/ATC Fuse Holder https://www.amazon.com/Blue-Sea-Syst.../dp/B004ZIUA62
130PCS Standard Blade Car Fuse Assortment, SIM&NAT 1A 2A 3A 4A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A https://www.amazon.com/130PCS-Standa.../dp/B07G33XCHM- Gene
Kim & Gene
2015 Reflection 317RST
2017 Ram 3500 CC LB 4x2 6.7 CTD AISIN 3.73 DRW Auto Level Rear Air, BD3, Prodigy P3, Aux Tank
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08-15-2020, 05:24 PM #20
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2016 F350 CrewCab Dually
2018 Momentum 394M...Heavily Modded!
2023 Suzuki GSX-S1000 GT+
Excessive Payload is a Wonderful Thing
"If it ain't fast....It ain't Fun"
Lesson Learned
Today, 09:39 AM in It happened to me!!!