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Error code reference

Frigidaire Refrigerator Error Code Pantry-Damper-Heater Error

Damper Heater Open detected

Frigidaire codesFrigidaire refrigerator codes

Damper Heater Open detected: separation of Damper Heater housing part, bad contact, wire disconnection, short circuit.

First step from the service manual

After separating MAIN PCB CN91 from PCB, check resistance between Black <-> Brown wire: shall be 145 ohm +/- 7%. 0 Ohm = heater short, infinite Ohm = wire/bimetal open.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What Pantry-Damper-Heater Error means on a Frigidaire refrigerator

The Pantry-Damper-Heater Error on a Frigidaire refrigerator indicates that the control board has detected an open circuit condition in the damper heater circuit. The damper heater is a resistance heater element integrated into the pantry damper assembly. Its purpose is to prevent frost or ice buildup that could cause the damper flap to stick or bind, which would disrupt airflow control between the freezer and fresh food compartments. When the main PCB monitors this circuit and finds the resistance outside of acceptable limits, it logs this fault code.

The fault can result from several distinct electrical failures: physical separation of the damper heater housing, poor or corroded contact at the electrical connections, a broken or disconnected wire in the heater circuit, or an internal short circuit within the heater element itself. The correct resistance reading for the damper heater, measured at connector CN91 between the Black and Brown wires after disconnecting the connector from the main PCB, is 145 ohms plus or minus 7%. A reading of 0 ohms points to a shorted heater element, while an infinite or open resistance reading indicates a broken wire, failed bimetal thermal limiter, or a physically separated heater housing.

Diagnosis requires isolating the heater circuit from the main PCB at connector CN91 before taking any resistance measurements. Testing with the circuit live or without isolating the connector can produce inaccurate readings. Once the resistance is confirmed out of range, the technician can determine whether the failure is in the heater element itself, the wiring harness, or a bimetal thermal cutout that has opened and is preventing circuit continuity.

Source: manufacturer service documentation.

Common causes of Pantry-Damper-Heater Error

  1. 01

    Broken or disconnected wiring

    Part replacement

    A wire in the damper heater circuit has broken or pulled loose from its connector, resulting in infinite resistance when measured at CN91 between the Black and Brown wires. Inspect the wiring harness from the damper assembly to the main PCB connector for visible breaks or loose terminals.

  2. 02

    Damper heater housing separation

    Part replacement

    The physical housing of the damper heater assembly can crack or separate, breaking the internal electrical connection. This is a mechanical failure that interrupts the circuit and will show as an open reading during resistance testing.

  3. 03

    Failed bimetal thermal limiter

    Part replacement

    The bimetal thermal cutout in the heater circuit can open permanently if it has experienced an overtemperature condition, resulting in infinite resistance across the circuit. A reading of infinite ohms at CN91 with no visible wire damage points to this component.

  4. 04

    Shorted heater element

    Part replacement

    Internal failure of the heater element itself can cause a short circuit, which will read as 0 ohms at CN91 instead of the expected 145 ohms plus or minus 7%. This requires replacement of the damper heater assembly.

  5. 05

    Poor or corroded connector contact

    Wiring / connection

    Corrosion or bent terminals at the CN91 connector or at the heater assembly connector can create high resistance or intermittent contact, triggering the fault. Inspect all connector pins for corrosion, damage, or incomplete seating before replacing components.

See the test procedure for each cause

Frequently asked questions about Pantry-Damper-Heater Error

What does Pantry-Damper-Heater Error mean on a Frigidaire refrigerator?
This error means the main control board has detected an abnormal resistance reading in the pantry damper heater circuit. The damper heater is designed to prevent ice from forming on the damper flap, and the board monitors its circuit for proper resistance of 145 ohms plus or minus 7%. A reading of 0 ohms indicates a short, while an infinite reading points to an open circuit caused by a wire break, failed bimetal limiter, or housing separation.
Can I fix the Pantry-Damper-Heater Error myself?
A knowledgeable DIYer with a multimeter can perform the initial resistance check by disconnecting connector CN91 from the main PCB and measuring between the Black and Brown wires. If the reading is 0 ohms or infinite ohms, component replacement will be required. Replacing the damper heater assembly or wiring harness is a moderate repair, but working near the refrigerant system or main PCB should be done carefully to avoid additional damage.
Is the Pantry-Damper-Heater Error dangerous?
This error is not an immediate safety hazard in most cases, but it does affect the refrigerator's ability to regulate airflow and temperature in the pantry section. A stuck or frozen damper can cause temperature inconsistencies that may affect food preservation. A shorted heater element, indicated by a 0-ohm reading, should be addressed promptly to prevent potential electrical issues.
How much does it cost to repair a Pantry-Damper-Heater Error on a Frigidaire refrigerator?
Repair costs depend on which component has failed. A replacement damper heater assembly typically costs in the range of $30 to $80 for the part alone. If professional labor is needed, total repair costs including diagnosis and installation can range from $100 to $250 depending on your location and service provider rates.
Will resetting my Frigidaire refrigerator clear the Pantry-Damper-Heater Error?
A power reset may temporarily clear the error code from the display, but the fault will return if the underlying electrical problem in the damper heater circuit has not been corrected. The control board will re-detect the abnormal resistance condition the next time it runs a diagnostic check. A permanent fix requires identifying and correcting the specific cause, whether that is a wiring issue, failed heater element, or damaged connector.

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