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Dometic 3850730569 Refrigerator Gas Valve and Burner Assembly

Dometic 3850730569 Refrigerator Gas Valve and Burner Assembly
Dometic Refrigerator Gas Valve and Burner Assembly
 
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Part Number: 3850730569
Manufacturer: Dometic

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Dometic OEMLP Gas / PropaneAbsorption RefrigeratorDometic 3850730569 Gas Valve and Burner Assembly -- Restore LP Operation in Your Dometic RV Refrigerator

When your Dometic absorption refrigerator stops cooling on propane, the gas valve or burner assembly is one of the first components to suspect. This OEM Dometic part 3850730569 is a direct-replacement gas valve and burner assembly designed to bring LP-mode performance back to your rig without guesswork. At just 0.1 lbs and measuring 6.25 x 4.0 x 1.5 inches, it is a compact, proven component built to Dometic factory specifications.

Factory-Spec LP Burner Replacement for Dometic Absorption Fridges

Dometic absorption refrigerators -- found in millions of Class A, Class B, Class C motorhomes, fifth wheels, and travel trailers -- use an LP gas burner to heat the ammonia-water solution that drives the cooling cycle. Over time, the gas valve can fail to open or close properly, the burner orifice can clog or corrode, and the burner tube can warp from heat cycling. The result is a refrigerator that runs fine on 120V shore power but refuses to cool on gas -- a serious problem for boondockers and dry campers who depend on propane.

Part 3850730569 replaces the complete gas valve and burner assembly as a single unit, so you are not chasing individual components. Using a genuine Dometic OEM part ensures the orifice size, valve flow rate, and burner geometry all match what the cooling unit was engineered for, protecting your refrigerator's long-term performance.

OEM Direct Fit

Manufactured to Dometic factory specifications for a bolt-in installation with no adapters or modifications required on compatible models.

Restores Gas Mode

Addresses the most common cause of LP cooling failure -- a faulty gas valve or fouled burner -- in one replacement part.

Compact Form Factor

Measures 6.25 x 4.0 x 1.5 inches and weighs just 0.1 lbs, making handling and installation in tight refrigerator compartments straightforward.

Critical for Off-Grid Use

Restoring propane operation is essential for boondockers and dry campers who cannot rely on shore power or solar alone for refrigeration.

Where This Part Fits in the Dometic Refrigerator Lineup

Dometic (formerly Electrolux/Dometic) has produced absorption refrigerators under the RM and NDR series designations for decades. The gas valve and burner assembly on these units is a wear item -- the valve diaphragm or solenoid degrades over years of heating and cooling cycles, and the burner can accumulate carbon or rust scale that disrupts the flame pattern.

Part 3850730569 is associated with Dometic's RM series absorption refrigerators commonly found in RVs from the early 2000s through recent production years. Always verify compatibility by cross-referencing your refrigerator's model and serial number on the data plate inside the fresh food compartment or on the exterior access panel before ordering.

Boondocking Benefit: A functioning LP burner lets your refrigerator run entirely independent of shore power or battery state. For off-grid camping trips of more than a day or two, propane mode is the most efficient and practical option -- this repair pays for itself on the first extended dry-camp outing.

Diagnosing Gas Valve and Burner Failures

Before ordering, confirm the burner assembly is the source of your LP cooling problem. Common symptoms include:

  • Refrigerator cools normally on 120V but produces no cooling or weak cooling on LP gas setting
  • Igniter sparks but burner flame does not light or stays lit for only a few seconds before the control board locks out
  • Visible rust, corrosion, or carbon buildup on the burner tube when inspected through the exterior vent panel
  • Gas valve audible click (solenoid) but no gas flow confirmed at burner orifice
  • Error codes on electronic control models indicating flame-sense failure after multiple ignition attempts
Note: If the refrigerator fails on both AC and LP simultaneously, the cooling unit (ammonia circuit) itself is more likely the cause rather than the gas valve/burner assembly. This part addresses LP-specific failures only.

Installation Overview

Replacing the gas valve and burner assembly is a manageable DIY repair for RV owners comfortable working with LP gas components. The assembly is accessed through the exterior refrigerator vent panel -- no need to remove the refrigerator from the cabinet in most installations.

  • Shut off LP gas at the tank and confirm zero pressure at the appliance before beginning
  • Disconnect the gas supply line fitting at the valve inlet
  • Disconnect the electrical connector(s) to the solenoid valve
  • Remove the burner tube and orifice assembly from the flue baffle
  • Reverse the procedure with the new assembly, check all fittings for leaks with approved leak-detection solution before relighting
Maintenance Tip: While the burner area is open, inspect the flue baffle and boiler tube for mud dauber (wasp) nests -- a very common cause of LP ignition failure in RV refrigerators. Clear any obstructions before reinstalling the burner assembly to ensure proper draft and combustion air flow.
Related Parts to Consider: If the thermocouple or thermistor flame-sense probe shows corrosion or heat damage, replace it at the same time. The gas valve/burner service interval is also a good opportunity to inspect the flue baffle insert and boiler area for corrosion that could indicate early cooling unit deterioration.

Product Specifications

ManufacturerDometic
Part Number3850730569
UPC7315091124614
Component TypeGas Valve and Burner Assembly
Fuel TypeLP Propane

Physical Dimensions

Length6.25 inches
Width4.0 inches
Height1.5 inches
Weight0.1 lbs

Application and Fitment

Appliance TypeDometic Absorption Refrigerator (2-way AC/LP and 3-way AC/LP/12V)
Primary SeriesDometic RM Series RV Refrigerators
RV TypesClass A, Class B, Class C motorhomes, fifth wheels, travel trailers
OEM or AftermarketDometic OEM Replacement Part

Compatibility Verification

Where to Find Model NumberData plate inside fresh food compartment or on exterior access panel
Cross-Reference MethodMatch by Dometic refrigerator model and serial number
ReplacesOriginal factory-installed gas valve and burner assembly on compatible Dometic RM series units

What Is Included

Included in PackageGas valve and burner assembly (complete unit)
HardwareVerify mounting hardware against your specific model -- small fasteners may not be included
NOT IncludedThermocouple/flame sensor, igniter electrode, flue baffle, LP supply line or fittings
Important Information
  • LP gas work must comply with NFPA 58 and applicable local codes. If you are not confident working with propane appliance components, have a qualified RV service technician perform this repair.
  • Always shut off LP gas at the supply tank and confirm zero line pressure before disconnecting any fittings.
  • After installation, test all gas connections with an approved bubble-type or electronic leak detector before lighting the appliance. Never use an open flame to check for leaks.
  • Verify refrigerator model and serial number compatibility before ordering -- this part is not universal to all Dometic refrigerator models.
  • This assembly addresses LP gas mode failures. If the refrigerator fails on both AC electric and LP gas modes simultaneously, the sealed cooling unit is likely at fault and requires separate diagnosis.
  • Dometic service work may affect warranty status on newer units -- check your warranty terms before proceeding with DIY repair.


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