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Dinosaur Electronics DIN3850415.01 Dometic Replacement Control Board -- 2/3-Way, Built-In Ignitor, Variable Temp

Dinosaur Electronics DIN3850415.01 replacement control board for Dometic RV refrigerators, with built-in ignitor and variable temperature adjustment.
Dinosaur Dometic Refrigerator Replacement Board
 
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Part Number: 3850415.01 REPLACEMENT
Manufacturer: Dinosaur Electronics

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Dinosaur ElectronicsReplaces Dometic 3850415.013-Year WarrantyDinosaur Electronics DIN3850415.01 -- Dometic Replacement Control Board

Stop wrestling with a failed OEM board. Dinosaur Electronics' drop-in replacement for the Dometic 3850415.01 brings a built-in ignitor, proven retry logic, and a variable temperature adjustment that fixes the one thing the original couldn't -- giving fixed-temp refrigerators real user control. A 3-year manufacturer warranty backs every board.

The Smarter Replacement for Your Dometic Refrigerator Board

When a Dometic absorption refrigerator stops cooling on LP or loses the ability to switch modes reliably, the control board is the most common culprit. Dinosaur Electronics has been engineering direct-replacement RV refrigerator boards for decades, and the DIN3850415.01 is purpose-built to replace the OEM Dometic 3850415.01 -- no splicing, no adapter harnesses, no guesswork.

Unlike the original board, Dinosaur's version includes a built-in electronic ignitor, eliminating a separate ignitor module as a potential failure point. The board also adds a variable temperature adjustment specifically for Dometic units that shipped with a fixed automatic temperature setting -- a common source of frustration for full-timers and seasonal users who need to dial in performance for their climate.

Built-In Ignitor

Integrated electronic ignitor eliminates a separate module and reduces overall failure points in the LP gas circuit.

2-Way or 3-Way Operation

Supports both LP gas and 120V AC operation, with 3-way models also covering 12V DC -- matches your fridge's original configuration.

Smart Retry Logic

Attempts ignition three times per cycle. If no flame is sensed, the board waits 30 minutes and retries automatically -- no manual reset needed.

Fuse Protected

Onboard fuse protection guards the board and downstream components against voltage spikes common in RV electrical systems.

Diagnostic Features That Save Time

Dinosaur built real diagnostic feedback into this board so you spend less time guessing and more time camping:

  • A check light activates after each failed ignition attempt, giving you a clear visual cue that the LP cycle did not establish a flame.
  • The board repeats its 3-try ignition cycle every 30 minutes if flame is never sensed, so the refrigerator keeps trying without intervention.
  • On DC-capable models, the indicator light flashes if 12V supply voltage drops too low for more than 10 seconds -- an early warning that your coach battery or converter may need attention before the fridge shuts down.
Variable Temperature Adjustment -- A Real Upgrade

Many Dometic refrigerators from this era shipped with a fixed "automatic" temperature setting baked into the OEM board. Dinosaur's replacement adds a physical adjustment that lets you tune the temperature threshold to match your load, ambient temperature, or altitude. This single feature is why many technicians specify the Dinosaur board even on refrigerators with a functioning original board.

Installation Overview

The DIN3850415.01 is a direct plug-in replacement designed to fit the same mounting location as the OEM Dometic 3850415.01 board. The board ships with an easy-to-remove cover. Always disconnect shore power, turn off LP gas, and allow the refrigerator to cool before beginning board replacement. Verify your Dometic model number and confirm you are replacing the 3850415.01 board before ordering.

Compatible Dometic Board: This board is designed as a direct replacement for the Dometic OEM board number 3850415.01 (also referenced as 3859415.01 in some service documentation). Verify your existing board number on the label before purchase.
2-Way vs. 3-Way: Confirm whether your Dometic refrigerator is a 2-way (LP + 120V AC) or 3-way (LP + 120V AC + 12V DC) unit before installing. Installing a 2-way board in a 3-way application will leave the DC heating element uncontrolled.
Maintenance Tip: While the board is out, inspect the LP burner orifice, thermocouple, and LP supply lines for corrosion or blockage. A clean burner and good gas pressure are essential -- even a perfect new board cannot compensate for a restricted gas supply or a fouled orifice.

Board Identification

Dinosaur Part NumberDIN3850415.01 REPLACEMENT
SKU80-8711
UPC799530707885
Replaces OEM BoardDometic 3850415.01 (also referenced as 3859415.01)
ManufacturerDinosaur Electronics

Electrical and Operation

Operating Modes2-way (LP + 120V AC) or 3-way (LP + 120V AC + 12V DC)
IgnitorBuilt-in electronic ignitor (no separate module required)
Fuse ProtectionYes -- onboard fuse
Temperature AdjustmentVariable -- field-adjustable (upgrades fixed-temp OEM units)

Retry and Diagnostic Logic

Ignition Attempts Per Cycle3 tries
Retry Interval (no flame)30 minutes between full retry cycles
Failed Ignition IndicatorCheck light illuminates after each failed attempt
Low DC Voltage AlertIndicator flashes if voltage too low for more than 10 seconds (DC models)

Physical

Weight0.4 lbs.
Cover IncludedYes -- easy-to-remove cover

Warranty

WarrantyLimited 3-Year Manufacturer Warranty (Dinosaur Electronics)
Important Information
  • This board replaces Dometic OEM board 3850415.01 only. Confirm the board number on your existing unit before ordering -- installing an incompatible board can damage the refrigerator or create a safety hazard.
  • Disconnect all power sources (120V AC shore power or generator, 12V DC coach battery) and shut off LP gas at the tank before removing the old board.
  • Do not operate the refrigerator on LP gas if you smell gas, suspect a leak, or have not confirmed LP supply pressure is correct -- a new board will not correct a gas supply problem.
  • The DC low-voltage flash alert is a warning indicator only -- it does not shut down 120V AC or LP operation. Address coach battery or converter issues promptly to avoid refrigerator damage.
  • Warranty is provided by Dinosaur Electronics. Retain your purchase receipt as proof of purchase for warranty claims.


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