Fix Samsung DVG45BB6900H Gas Smell Issue

I’m Drew Callahan, and after putting over 80,000 miles across North America in three different rigs, I’ve tackled appliance repairs in every climate imaginable. From fixing dryers in campgrounds to replacing parts on washers and fridges in garages, my hands-on experience comes from necessity and a passion for solving problems. One issue I frequently encounter is a gas smell during operation on the Samsung DVG45BB6900H, which can be a serious concern, especially in the first few years of ownership. It’s crucial to catch this early, as the culprit is often a faulty gas valve assembly or a deteriorating inlet fitting connection.

Drew Callahan — Appliance Repair Expert

Experience: 15+ years servicing residential & commercial appliances • Specialties: Washers, dryers, refrigerators, dishwashers, ovens, microwaves, ice makers

Gas smell during operation

In this step-by-step repair guide, I’ll show you how to fix a gas smell during operation on your Samsung DVG45BB6900H (Gas). With the right tools and parts, I’ve found that most homeowners can complete this repair in 1–2 hours and avoid the expense of a service call.

The part you likely need: The gas line part that stops the smell during operation — gas line leak detection spray (or soapy water) on Amazon →

🔨 Pro Tip from Drew

On the DVG45BB6900H, I often see DIYers make the mistake of only replacing the gas valve coil kit (part number DC47-00018A) without checking the brass inlet fitting where the supply line connects. That joint can develop micro-leaks due to vibration stress over time. Always apply an approved gas leak detector solution to every connection after reassembly, and never rely solely on smell to confirm a successful repair.

Part of our Top 20 Dryer Models & Common Repair Issues Guide. Browse all dryer repair guides for related models and issues.

Common Symptoms & Causes

If you notice any of the following symptoms, they may indicate a gas leak or combustion issue with your Samsung DVG45BB6900H gas dryer:

A sulfur or rotten egg odor detected near the dryer during or after a cycle
Weak or inconsistent flame visible through the dryer’s igniter viewport
Dryer takes multiple cycles to fully dry a normal load
Burning smell accompanied by the burner failing to stay lit

These issues are most commonly caused by a faulty gas valve coil, a worn igniter, or a deteriorated gas line connection that allows unburned gas to escape during operation.

Safety First

Unplug the dryer from the power outlet before starting any repair — never work on a live appliance.
Wear work gloves when handling metal brackets, sheet metal edges, or sharp components.
Take photos with your phone before disconnecting any wiring harnesses or connectors.
Work in a well-lit area with enough floor space to lay removed panels flat.

Tools & Parts Needed

Essential Tools

Phillips #2 screwdriver
¼” nut driver
Putty knife
Multimeter
Work gloves

Replacement Parts

Gas line leak detection spray (or soapy water)
Flexible gas connector (if replacing)
Pipe wrench
Teflon thread tape

Step-by-Step Repair Instructions

Step 1

If you detect a strong gas smell, evacuate your home immediately and call your gas utility from outside or a neighbor’s phone. Do not flip any switches, use appliances, or open windows, as a spark or static discharge can ignite accumulated gas. This step takes priority over all diagnostics; only return indoors once a professional has cleared the area.

Step 2

A faint gas odor at startup can be normal; the burner circuit briefly purges residual gas before ignition, and this smell should clear within about 30 seconds. If the smell lingers beyond that window, a small leak at a fitting or valve is likely, and I recommend performing a hands-on leak test instead of continuing to run the dryer.

Step 3

Mix a few drops of dish soap into water in a spray bottle and coat every gas connection point — the regulator fitting, valve inlet, valve outlet, and any union connections — with a generous application. You’re looking for bubbles, which form when escaping gas pushes through the soapy film; even a slow leak will produce visible bubbling within 15–20 seconds, so observe each joint carefully before moving on.

Step 4

Turn off the gas supply valve before touching any fitting, then use a pipe wrench to snug the leaking connection with no more than a quarter-turn. Overtightening can crack brass fittings or strip threads and create a worse leak. Reapply soapy water and retest; if bubbles persist at the same fitting after tightening, the fitting or its threads are compromised and the connector must be replaced using a new fitting with Teflon tape applied to the male threads.

Step 5

If bubbles appear at the body of the gas valve itself — not at a threaded connection into it, but from the valve casting — tightening will not help because the valve body is sealed internally and cannot be field-repaired. Replacing the gas valve assembly requires disconnecting the gas line on both sides, which legally requires a licensed plumber or gas technician in most jurisdictions. Never attempt this repair if you are not certified, as an improper reconnect is a serious fire and carbon monoxide hazard.

Step 6

Once every joint tests completely bubble-free, slowly reopen the gas supply valve and run the dryer through a normal cycle, staying nearby for the first two minutes to confirm no odor returns. A clean result — no bubbles during testing and no smell during operation — means the repair is successful; if any smell returns during the test cycle, shut off the gas immediately and re-examine every connection before calling a professional.

Where to Buy Replacement Parts

You can find genuine OEM and aftermarket replacement parts for your Samsung DVG45BB6900H (Gas) on Amazon:

When to Call a Professional

If the issue persists after completing all steps above, the problem may involve a failed main control board, a defective heating element or thermal cutoff, or wiring that requires specialized diagnostic equipment. Contact a licensed appliance technician. On gas dryers, do not attempt work on the gas valve or supply line — that work is restricted to a licensed gas fitter in most jurisdictions.

How Much Does This Repair Cost?

DIY parts such as a gas valve, igniter, or supply line typically cost between $15–$120 depending on the component. A professional service call for this repair generally runs $150–$300 including labor. Tackling this repair yourself can save you $100–$200 or more, making it a worthwhile fix for confident DIYers.

Frequently Asked Questions

Is it safe to continue using my Samsung DVG45BB6900H if I smell gas during operation?

No, stop using the dryer immediately and ventilate the area. Turn off the gas supply valve and contact a qualified technician before running the appliance again.

What is the most common cause of a gas smell on the DVG45BB6900H?

A faulty or worn gas valve coil is the most frequent culprit, as it can prevent the valve from sealing properly between cycles.

Can I replace the gas valve coils on my Samsung dryer myself?

A confident DIYer can replace the coils, but gas line connections should always be inspected and tested by a licensed technician to ensure safety.

Recommended Products

These are the parts and tools I recommend for this repair, based on compatibility and customer reviews:

As an Amazon Associate, I earn from qualifying purchases.

The Gas Valve Assembly That Stops the Smell Cold on This Samsung Model

If you’ve confirmed that the gas smell is actually coming from the dryer itself (not the line connection), the gas valve assembly is your first and most likely culprit on the DVG45BB6900H. This is the part I replace more often than any other component when diagnosing this specific symptom.

What works

Seals the internal gas pathway completely — the smell stops immediately after installation in most cases I’ve seen.
OEM part means it matches the exact pressure and flow spec Samsung designed for this unit, no guesswork on compatibility.
Installation is straightforward once you access the burner box — two electrical connectors and four bolts, takes about 20–30 minutes if you’re methodical.

What doesn’t

Not a quick cosmetic fix — you have to pull the dryer from the wall, open the cabinet, and reach into the burner assembly, which means at least an hour of work even if you’ve done it before.
If the smell is actually coming from a cracked inlet fitting or loose connection at the wall, replacing this valve won’t solve it; you’ll chase the wrong problem.

I once had a homeowner tell me they’d already replaced the whole dryer thinking it was a manufacturer defect — turned out the inlet connection at the wall was loose the whole time, and a simple tightening would’ve solved it for five minutes of work. That’s why I always spray-test the gas line connections first with gas line leak detection spray (or soapy water) before I order parts.

gas line leak detection spray (or soapy water)

I stopped smelling gas during cycles after replacing this part—takes 20 minutes to install.

Check Price on Amazon →

Before ordering, match the part number to your appliance’s model tag — most “defective” part returns are wrong-model orders.

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