How to Install a Samsung Fridge Defrost Heater
The recurring sheet of ice behind a Samsung French door fridge's rear freezer panel is a refreezing drain, and the lasting fix is the drain strap kit DA82-02367A plus a secondary defrost heater that keep the drain above freezing. It is an intermediate, 60 to 90 minute job on RF-series models from 2014 through 2022.
What actually goes wrong#
Condensation that should drain during each defrost refreezes at the drain hole, ice climbs behind the rear panel, the evaporator fan starts grinding on it, water pools under the crispers, and cooling fades as airflow chokes. The strap conducts defrost-heater warmth to the drain entry, and the secondary heater adds targeted heat there, so the water exits instead of refreezing.
Safety warning: Unplug the refrigerator completely. Significant ice and water will be present during this repair.
What you need#
| Category | Detail |
|---|---|
| Tools | Phillips #2 screwdriver, hair dryer or steamer, towels, needle-nose pliers, wire strippers, multimeter |
| Parts | Samsung drain strap kit DA82-02367A, a model-specific secondary defrost heater (typically DA47-series), high-temperature cable ties |
| Time and level | 60 to 90 minutes, Intermediate |
Do You Have the Right Tools?
Refrigerant gauges ($200+), vacuum pump ($250), leak detector ($150), and EPA-certified recovery equipment. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Step by step#
1 - Force a defrost first. Before unplugging, hold Energy Saver and Fridge together for 8 seconds until the display blanks and beeps, and let it run 20 to 30 minutes to soften the ice so the rear panel comes off easily.
2 - Unplug and empty the freezer. Pull the plug, remove all food, shelves, racks and the ice bucket (it lifts after a release tab on the left), and lay towels down for meltwater.
3 - Remove the rear evaporator panel. Back out the six to eight Phillips screws around it, including any hidden under a shelf clip, and pull it straight off — warm stuck edges with a hair dryer rather than prying the thin plastic.
4 - Clear all the ice. Melt the ice encasing the evaporator with a hair dryer or warm, never boiling, water, and flush the drain hole at the bottom center with a baster of warm water until it flows freely into the pan below.
5 - Fit the drain strap DA82-02367A. Clip the copper or aluminum strap to the lower part of the existing defrost heater where it runs closest to the drain, and set its lower tab about half an inch into the drain opening so it carries heat straight to where ice forms.
6 - Fit the secondary heater. Route the supplemental heater along the drain trough below the coils, secure it with the high-temperature ties, and plug its harness into the existing defrost circuit — Samsung makes these plug-in, so no splicing.
7 - Test the connections. Meter the new heater for continuity, expecting roughly 20 to 60 ohms by model, and confirm the strap has solid contact with both the heater frame and the drain, since a loose strap conducts too little heat.
8 - Reassemble and check the drain. Pour a cup of warm water through the drain to confirm free flow, refit the panel with its gasket seated evenly, replace the screws, shelves, bucket and food, and set the freezer to 0 degrees F and the fresh food to 37 degrees F.
9 - Verify after a day. Once temperatures settle over 24 hours, force another defrost and check the drain pan fills, and look behind the panel after a week to confirm no new ice.
If ice keeps forming#
- Door gasket leaking: warm humid air overwhelms the defrost system — run the dollar-bill test around the seal, especially where French doors meet.
- Defrost thermostat failed: the bimetal that starts the defrost should read continuity at room temperature; if open, the cycle never runs.
- Primary heater burned out: if the original heater shows no continuity, the secondary alone cannot keep the drain clear — replace it too.
- Drain tube frozen further along: insulate the section through the divider wall if it freezes past the strap.
Safety First — Know the Risks
Refrigerant (R-134a/R-600a) requires EPA certification to handle. Improper discharge is a federal violation and health hazard. Our techs are licensed and insured — let them handle the risk.
Licensed & Insured · 90-Day Warranty · Same-Day Service
When to call a professional#
Bring in a technician if the coils frost unevenly (a sealed-system leak), if the heater is physically damaged alongside board burn marks, if your model predates 2014 and does not fit the DA82-02367A kit, or if leak water has reached the control board.
Appliance Repair Technician · 11 years experience
Experienced technician with 11 years specializing in Frigidaire and Electrolux refrigerator and dryer repair with a focus on safety.
