How to Fix No ignition on Samsung DVG45BB6900H (Gas)

No ignition

This step-by-step repair guide walks you through fixing no ignition on your Samsung DVG45BB6900H (Gas). With the right tools and parts, most homeowners can complete this repair in 1–2 hours and avoid a costly service call.

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

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Common Symptoms & Causes

If your Samsung DVG45BB6900H is experiencing no ignition, you may notice one or more of the following signs before or during a cycle.

The dryer drum spins but no heat is produced throughout the cycle
You can hear a faint clicking sound but the burner never lights
The dryer displays error code HE or HC indicating a heating failure
Clothes remain completely cold and damp after a full drying cycle

These symptoms are most commonly caused by a failed igniter, a faulty gas valve coil, or a worn thermal fuse that has interrupted the ignition circuit over time.

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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

Step-by-Step Repair Instructions

Step 1

Unplug the dryer and shut off the gas supply valve at the wall, then wait a few minutes and check for any lingering gas odor before touching anything — gas must not be present before you open the cabinet. If you smell gas, leave the area immediately and call your gas utility. Ventilate the laundry room by opening windows and doors while you prepare your tools.

Step 2

Remove the rear panel by backing out the six ¼-inch hex screws around its perimeter, then set it aside to expose the gas burner assembly mounted at the bottom rear of the cabinet. You are accessing this area because all the ignition components — igniter, flame sensor, and gas valve — are clustered here, and visual inspection alone will often reveal burn marks, cracked igniters, or corroded terminals before you even pick up a meter.

Step 3

Test the glow-bar igniter by disconnecting its harness connector and setting your multimeter to Rx1 (resistance); a healthy igniter reads 50–400Ω, while a reading above 600Ω or an open (OL) circuit means the element is too weak to reach ignition temperature or has failed entirely and must be replaced. The igniter is the single most common cause of no-ignition on this model because it also acts as a current-sensing switch that signals the gas valve to open — if it glows dimly or not at all, gas will never flow. Handle the glow bar without touching the ceramic element, as skin oils can create hot spots that shorten its life.

Step 4

Disconnect the flame sensor harness and test the bi-metal sensor on Rx1 continuity; at room temperature you should hear a beep or see near-zero resistance, confirming the contacts are closed and the circuit is complete. An open reading at room temperature means the sensor has failed in the open position, which will prevent the control board from ever allowing a heat cycle to complete, so replace it. This sensor is a safety device that shuts off gas if the dryer overheats, so never bypass it.

Step 5

With the gas supply valve still closed, disconnect the wiring leads from the two solenoid coil caps on the gas valve body and test each coil individually on Rx1; the primary coil should read approximately 1,300Ω and the secondary coil should fall between 90–600Ω. An open reading on either coil means that solenoid cannot pull the valve plunger open, so gas will not flow even if the igniter glows perfectly — replace the solenoid coil kit rather than the entire valve, which saves significant cost. Label or photograph the wiring positions before removing any leads to avoid reversing them on reassembly.

Step 6

Reassemble the rear panel, then slowly reopen the gas supply valve and listen for any hiss that could indicate a disturbed fitting — if you hear one, shut the valve immediately and check your connections. Plug the dryer back in and run a heated cycle, watching through the burner opening if possible: the igniter should glow bright orange within about 30–45 seconds, and the gas should ignite within 90 seconds of the cycle starting. If the igniter glows but gas does not light, the fault is now isolated to the gas valve solenoids; if it does not glow at all, recheck your igniter resistance and harness connections.

Where to Buy Replacement Parts

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 the sealed refrigerant system, a failed main control board, or wiring that requires specialized diagnostic equipment. Contact a licensed appliance technician — attempting sealed-system repairs without EPA 608 certification is illegal and unsafe.

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How Much Does This Repair Cost?

DIY parts for fixing no ignition on a Samsung DVG45BB6900H typically cost between $20 and $80, depending on whether you need an igniter, valve coils, or a control board. A professional service call for the same repair usually runs $150 to $300, including labor. Tackling this repair yourself can save you $100 or more.

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Frequently Asked Questions

Why is my Samsung DVG45BB6900H not igniting even though the gas supply is on?

A faulty igniter is the most common cause, as it weakens over time and can no longer generate enough heat to light the burner. Test the igniter with a multimeter and replace it if it shows no continuity.

How do I know if the gas valve or the igniter is causing the no-ignition problem?

If the igniter glows but the burner never lights, the gas valve coils are likely defective and need replacement. A igniter that never glows at all points to a failed igniter or a broken igniter circuit.

Is it safe to repair the ignition system on my Samsung gas dryer myself?

Yes, but always unplug the dryer and shut off the gas supply before beginning any repair. If you smell gas at any point during the process, stop immediately and contact a licensed technician.

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