Dometic Furnace Thermostat (Heat Only) - Black - Fits Atwood & Dometic RV Furnaces - Part# 9108859546

DometicSKU: 9108859546
Added to catalog: March 24, 2026
Last in stock: Apr 1, 2026

Sale price$19.25 Regular price$34.99
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In stock (9368 units), ready to be shipped
Delivery Estimate April 22 – April 25
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

This Dometic heat-only thermostat is a direct replacement for Atwood and Dometic RV furnaces, providing reliable temperature control for your heating system. Designed as a genuine OEM service part, this black thermostat replaces worn or malfunctioning units to restore proper furnace operation. If your RV furnace isn't responding to temperature adjustments or won't cycle properly, this thermostat is likely the solution you need.

Key Features

  • Heat-Only Control: Dedicated thermostat designed specifically for RV furnace heating systems
  • Genuine OEM Quality: Factory-spec replacement part engineered to Dometic's exact standards
  • Black Finish: Clean, professional appearance that matches most RV interiors
  • Direct Replacement: Installs in place of original Atwood and Dometic furnace thermostats
  • Simple Operation: Easy-to-use dial control for precise temperature adjustment
  • Durable Construction: Built to withstand the vibration and temperature variations of RV travel

Technical Specifications

Part Number 9108859546
Type Heat Only Thermostat
Color Black
Application RV Furnace Control
Compatibility Atwood & Dometic Furnaces
OEM Status Genuine Dometic Service Part

Frequently Asked Questions

Will this thermostat work with my Atwood furnace?

Yes, this Dometic thermostat is designed to replace thermostats in both Atwood and Dometic branded RV furnaces. Since Dometic acquired Atwood, many parts are cross-compatible. Verify your current thermostat wiring matches before installation.

Does this control air conditioning or just heat?

This is a heat-only thermostat designed specifically for furnace control. It does not control air conditioning systems. If you need heating and cooling control, you'll need a different thermostat model with dual functionality.

How do I know if my thermostat needs replacing?

Common signs include the furnace not responding to temperature changes, inconsistent heating cycles, the furnace running continuously, or no response when adjusting the dial. If your furnace blower works but won't ignite, the thermostat is often the culprit.

Is this difficult to install myself?

Most RV owners can replace a thermostat with basic tools and electrical knowledge. You'll need to turn off power, remove the old unit, match the wire connections, and mount the new thermostat. Always follow proper safety procedures when working with RV electrical systems.

Why Choose Elkhart RV Parts?

We specialize in hard-to-find Dometic and Atwood RV parts that other suppliers don't stock. Located in Elkhart, Indiana — the RV capital of the world — we understand RV systems inside and out. Every part we sell is a genuine OEM component, ensuring perfect fit and reliable performance. Our expert support team knows these products and can help you identify exactly what you need. Fast shipping gets your RV back to comfortable temperatures quickly.

100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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