Samsung Refrigerator Error Code 29

Error code 29 indicates a Freezer Ice Pipe Heater fault. The control board measures resistance between pins 1 and 5 of connector CN90 and has detected a value outside the acceptable range of 63 ohms plus or minus 7% for 120V units, or 230 ohms plus or minus 7% for 230V units. This points to a problem with the heater element, the bimetal cutoff, the wiring harness, or the board itself. The ice maker is likely affected as a result.

A reset may temporarily clear the code from the display, but the error will return if the underlying fault is not repaired. Because the control board actively measures heater resistance at CN90, it will detect the out-of-spec condition again the next time it runs a check. The heater, bimetal, or wiring must be repaired or replaced to permanently clear the code.

Repair costs depend on which component has failed. If the issue is simply a loose or corroded connector, there may be no parts cost at all. A replacement ice pipe heater element typically falls in the range of $20 to $60 in parts. If the main PCB needs replacement, parts alone can range from $100 to $250 or more. Adding professional labor, total repair costs generally range from $80 to $350 depending on the diagnosis and parts required.

A knowledgeable DIYer can perform the initial resistance test by disconnecting the CN90 connector from the main PCB and measuring between pins 1 and 5 with a multimeter. A reading of 0 ohms means the heater has shorted, and infinite resistance means an open circuit in the heater, bimetal, or wiring. Replacing the heater element or inspecting the harness for damage are tasks within reach for someone comfortable with basic appliance repair, but working near refrigerant lines or the main board carries some risk if care is not taken.

The refrigerator's cooling system for food storage typically continues to operate with error 29 active, so food safety is generally not an immediate concern. However, the ice maker water pipe may freeze without the heater functioning, which can block water flow or cause damage to the ice maker assembly over time. It is best to address the fault promptly to avoid additional repairs.