dometic

  1. RH

    Water Pooling in Dometic DMC4101 Fridge—Causes and Fixes?

    This fridge has water collecting on the bottom shelf. I looked in the owners book and nothing is mentioned about a drain hose. Outside the RV there is the standard fridge vent cover and it's blocked off from the inside. No access to the back of the fridge unless I remove it. I called Dometic and...
  2. HD

    Dometic Thermostat Blank Screen—Troubleshooting and Upgrade Options

    Hi I have a 2017 Newmar Dutchstar 4018 I went to adjust the thermostat yesterday and it went blank no display I check the fuse in the low voltage panel it check good, I tried the reset procedure it is still blank is there anything else I should check before replacing the thermostat
  3. BI

    Finding a Low-Profile Replacement for 400mm Dometic Mini Heki Skylight

    Sprinter 3500, skylight is in a 400mm square cutout (not the 14" or 18" square most other systems use). The plastic is failing and needs replacement. Ideally, teh replacement would be very low profile so I can put it under a solar panel. Any advice is appreciated.
  4. DQ

    Dometic Furnace Blowing Cold Air: Troubleshooting 2013 International

    have a 2013 international with a Dometic heater/AC. When I turned on the heat this morning only cold air is blowing out. The fan is on auto. There is propane in the tank and the stove and H20 heater are working fine. Other than the sail switch. Does anyone have a guess as to what it might be?
  5. HO

    Dometic RM2354 Fridge: Freezer Works, Fridge Not Cooling on AC or Propane

    Greetings The fridge portion of my dometic stopped cooling about a week ago. Freezer is freezing nicely. tested the thermistor to find it had failed - according to all the youtube videos on testing a thermistor; read 5.9 ohms with probe in icy water. Ordered a new one (amazon - after...
  6. DT6

    Dometic DMC4101 Freezer Not Freezing—Fan or Control Board Issue?

    I've got a Dometic DMC4101 compressor fridge. The fridge gets cold and the freezer gets cold but not freezing. The fan in the freezer does not seem to be working. From what I understand the "Performance" setting is best for a cold freezer, with "Eco" keeping it at the warmest (setting 1), and...
  7. BG

    Free 28-Foot Dometic Slide Topper Available for Pickup or Shipping

    I have a 28-foot topper and hardware made by Dometic that is still in the original shipping material. This was incorrectly shipped to me and has been replaced with the correct topper. It is available if anyone will arrange and pay for the shipping. Connect James B. Crawford III at...
  8. SK

    Dometic 310 Toilet Makes Odd Noises When Filling Bowl—Is This Normal?

    Not sure how to ask this and still be politically correct in my language, but here goes. . .:LOL: I just replaced a cheap plastic Theford toilet with a Dometic 310. Install was flawless. Turned the pump on and every time I step on the pedal partially to fill the bowl, it literally sounds...
  9. NewmarKate

    Dometic Penguin II AC/HP Communication Issues and Lack of Fixes

    Question, for those of us with “ducted” ac/hp (dreaded Dometic/Penguin II low profile POS) I have been without use of my front 15k ac/hp since July 2025. WAITING for a fix, but NO, Dometic nor Newmar can get their acts together regarding a fix. Simply can’t get the Fresh Jet electronics to...
  10. MS

    Dometic Heater Sail Switch Wiring and Ignition Troubleshooting

    Early last year a mobile RV tech replaced the sail switch on our 2016 Montana. I continue to have issues with the heater. Heater cycles on and off 3-4 times then will not ignite. I am replacing the sail switch again, but I did not pay attention when I took the old one out. I have a spade...
  11. BR

    Persistent E1 Code on Dometic Thermostat: Wiring, Control Board, or AC Unit?

    Hello fellow campers we have a 2015 MK3735 Montana. I Have a E1 code on my thermostat I installed a new thermostat still E1 code then I had a mobile RV tech replace the circuit board on the main AC still E1 code apparently the living room AC Circuit board controls the bedroom ac and the furnace...
  12. Spower001

    Protecting a Dometic Fridge in Subzero Temperatures

    I have a dometic fridge. Worried about the below 0 temps coming. What do I do to keep fridge running? Thx!!
  13. LO

    Dometic Furnace Fan Runs but Won't Ignite in 2025 Asoria 5th Wheel

    I have a 2025 Asoria 5th wheel. Tha fan will run but furnace won't light. It is a Dometic brand. Both LP tanks are full, all burners on stove light. Any help would be appreciated. Thanks in advance.
  14. WI

    Dometic DFMD30111 Furnace Noise in 2025 2970RL: Is This Normal?

    Our 2025 2970RL has the Dometic dfmd30111 furnace. It makes a loud noise like a jet engine when running. Its loud enough to cause concern with our neighbors at our camp. I pulled the outside cover and vent off and inspected the system expecting to find mud dauber nest or some other obstruction...
  15. Mrgadget-ClassB

    Dometic RML 8330 Three-Way RV Refrigerator Fits Winnebago & Pleasureway Vans

    REFRIGERATOR MODEL RML 8330 UL; For Mobile Home or Recreational Vehicle Installation Operation by LP Gas, 12V DC or 120V AC Fits many Winnebago and Pleasureway Class B Vans Works on all three modes
  16. Kahoona-iRV2

    Dometic RM1350 Fridge Door Flap Slow to Close—Fixes and Causes

    The Dometic RM1350 has an odd way of sealing> It is a 4 door. When the lower pair of doors get closed a flap attached to the left one flaps over onto the edge of the right one sealing them. Ours foes not flap over for a while letting moisture and heat in. Eventually it may flap over. I have...
  17. OL

    Dometic DM2652 Fridge Blowing Thermal Fuse on Both Gas and Electric

    My dm 2652 lights on gas and electric. on either, after a few minutes, it pops the thermal fuse. the boards fuses are fine. any ideas? Thanks
  18. robbier49-iRV2

    Tips for Replacing Ball Seals on Dometic 4310 Toilet with Plug-In Base

    I am looking for anyone who has this Dometic 4310 toilet and have changed the ball seals. I have looked at all the post on Tiffin’s RV Network for any information that would help me change these seals. Specifically what to look out for and disconnecting the water and electrical lines. Looked on...
  19. JC

    Rear AC Fan Runs When Furnace Is On

    3791RD When I run my furnace the rear AC unit fan turns on blowing cool air. Furnace works fine. Don’t know why or how to shut the blower off. I did a hard reset on the system. Anybody come across this?
  20. SA

    Dometic DM2852RBFX Fridge Blowing 15A Fuse and Not Running on Propane

    Our fridge keeps popping the 15A fuse. There’s a known problem with the control panel as it doesn’t work on propane. Think this could also be the reason we keep shorting out?
  21. GR

    Upgrading to a Dometic 320 Elongated RV Toilet

    Hello everyone, I have a question and hopefully this is the right place. I have a 2024 bullet crossfire 2680bh and I believe it has a dometic 300? Porcelain toilet. It is a round seat and for a larger person like me feels very... "confining" when in use. I was looking to upgrade to a dometic 320...
  22. PA

    Dometic Thermostat Only Shows 38 or 80 Degrees

    Bought a 2016 3721RL in AZ and we camped at a few places as we headed back to VA this week. Good news we had heat with 22 deg F temps, but noticed the thermostat either showed 38 or 80 but not numbers in between as you attempted to go up or down. Fist night we left it on 80 and it was...
  23. LK23

    Dometic Macerator Toilet Caution Light Bypass

    I will soon take delivery of our 2026 New Aire 3545. When I purchased our previous 2022 New Aire and departed the dealership, I was about 80 miles down the road, when I stopped to take a break and "relief." I found the Dometic Macerator Toilet caution light was illuminated and the toilet would...
  24. MSGulfCoast-iRV2

    Dometic Penguin II Blue and Yellow Wiring Polarity

    I'm replacing a Dometic Penguin II with exact same unit. Question is about the 2 blue and 2 yellow wires in the AC wiring harness. They are identical. The wires from the coach don't match color-wise. Are they specific or are they just a loop? I know which 2 wires from coach each connect to...
  25. MO

    Dometic thermostat 9610008133 manual?

    Just had a heat-only thermostat installed, Dometic model 9610008133. I can't seem to find a manual for it anywhere online (guy that installed it didn't have one); anyone happen to have one handy?

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