Samsung Dryer Control Knob Encoder Parts — Models & Compatibility

If your Samsung dryer's cycle selector knob spins freely without changing settings, or the control panel doesn't respond when you turn the dial, you're likely dealing with a failed encoder assembly. This hub covers the DC97-18058C control knob encoder — the component that translates your knob turns into actual cycle selections. It's a common failure point in Samsung's DV42H and DV45H series dryers, typically showing up after 3-5 years of regular use.

Is This the Right Part for Your Model?

The DC97-18058C encoder assembly fits Samsung dryer models starting with DV42H, DV45H, DV48H, and DV50F prefixes. Your model number is printed on a sticker inside the door frame — open the door and look along the top or side edge. This part replaces older versions DC97-18058A, DC97-18058B, and DC67-00680A, so if you're cross-referencing your original part number, any of those will confirm compatibility.

About This Replacement Part

The control knob encoder is the mechanical-to-electrical translator behind your dryer's cycle selector. When you rotate the knob, this assembly sends position signals to the main control board, telling it whether you've selected Normal Dry, Heavy Duty, or Delicate. The encoder uses an optical sensor and a coded disc — over time, dust infiltration or worn contacts cause the sensor to miss positions. You'll notice this when the knob turns but the display doesn't change, or when you have to wiggle the knob to get it to register. The DC97-18058C assembly includes the encoder mechanism, mounting bracket, and connection harness. It's a direct plug-in replacement that requires removing the control panel — most techs complete the swap in 20-30 minutes once the panel's off.

Compatible Samsung Dryer Models

This encoder assembly works across Samsung's mid-2010s dryer lineup. Below are the most common models — if yours isn't listed but starts with DV42H, DV45H, DV48H, or DV50F, it's likely compatible. Always verify your existing part number matches DC97-18058C, DC97-18058A, DC97-18058B, or DC67-00680A before ordering.

What Customers Say About This Part

The control knob encoder fails in a distinctive way — the knob physically turns, but the dryer doesn't acknowledge the change. Some users report intermittent operation where they have to turn the knob past their desired setting and back to get it to register. Others find the display stuck on one cycle regardless of where they position the knob. It's frustrating because the dryer itself still works fine; you just can't select different cycles. Replacing the encoder typically resolves all these symptoms immediately, restoring full control panel functionality.

Installation Overview

Replacing the control knob encoder requires accessing the dryer's control panel from the top. You'll need to remove the top panel (usually held by clips or screws at the rear), then disconnect the wire harness from the old encoder. The new DC97-18058C assembly mounts in the same position with the same bracket holes. The most common mistake is failing to align the knob shaft properly during reassembly — make sure the flat side of the shaft matches the flat side inside the knob, or it won't turn the encoder correctly.

Pricing & Warranty

The DC97-18058C encoder assembly is priced at $110.99, which is considerably less than a service call to diagnose and repair the same issue. Given that this is a precise electromechanical component with optical sensing, the price reflects the engineering required for reliable cycle selection. Many dryer owners find this part lasts the remaining life of the appliance once replaced, making it a worthwhile investment compared to the cost and hassle of replacing the entire dryer.