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Error code reference

GE Dishwasher Error Code F216

Check Heater TCO and AC connections

GE codesGE dishwasher codes

Check Heater TCO and AC connections. No failure detected with machine control board.

First step from the service manual

Check Heater TCO. If good, check all AC harness.

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

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What F216 means on a GE dishwasher

Error code F216 on a GE dishwasher indicates that the control system has detected a problem with the heater circuit, specifically pointing to the Thermal Cut-Out (TCO) device or the AC power connections associated with the heating element. The TCO is a one-time or resettable safety device mounted on or near the heating element that opens the circuit if the heater reaches an unsafe temperature. When the machine control board cannot confirm proper continuity or voltage through this circuit, it logs F216 to flag the heater AC circuit for inspection. Importantly, the code description notes no failure detected with the machine control board itself, meaning the board is functioning and the fault is isolated to the external heater circuit components.

The TCO is the first component to inspect because it is the most likely point of failure in this circuit. A failed TCO will show an open circuit when tested with a multimeter set to continuity or resistance mode. A good TCO should read near zero ohms of resistance, indicating a closed circuit. If the TCO tests good, attention shifts to the AC harness connecting the heater and TCO to the control board. Loose connectors, corroded terminals, damaged wire insulation, or a broken wire in the harness can all interrupt the circuit and trigger this code.

Because this code involves the AC power side of the heater circuit, technicians should exercise caution during diagnosis and always disconnect power before probing components. The heating element itself should also be inspected visually for damage, though the TCO and wiring harness are the primary targets called out by this diagnostic code.

Source: manufacturer service documentation.

Common causes of F216

  1. 01

    Failed Heater TCO

    Part replacement

    The Thermal Cut-Out device opens permanently if the heater overheated at some point, breaking the circuit. Test it with a multimeter on continuity or resistance mode and look for an open circuit reading instead of near-zero ohms.

  2. 02

    Loose or Disconnected AC Harness Connector

    Wiring / connection

    The connector at the TCO, heater, or control board end of the AC harness can work loose over time due to vibration. Inspect each connector for a secure fit and look for any pins that have backed out of the housing.

  3. 03

    Corroded or Damaged Wiring in the AC Harness

    Wiring / connection

    Moisture inside the dishwasher can corrode terminal pins or wire ends in the AC harness, increasing resistance or breaking continuity entirely. Visually inspect the harness wires and connectors for corrosion, burn marks, or broken insulation.

  4. 04

    Broken Wire in the Heater Circuit

    Part replacement

    A wire within the AC harness may have fractured internally while appearing intact on the outside. Use a multimeter to perform a continuity check along each wire in the heater circuit to locate an open connection.

  5. 05

    Failed Heating Element

    Part replacement

    If the heating element itself has shorted or opened internally, it can affect circuit readings and trigger related heater fault codes. Inspect the element for visible damage and test it for continuity as part of a thorough diagnosis.

See the test procedure for each cause

Frequently asked questions about F216

What does F216 mean on a GE dishwasher?
F216 indicates a problem detected in the heater TCO circuit or the AC wiring connections related to the heating system. The machine control board has flagged this circuit because it cannot confirm proper continuity or operation through the heater TCO and associated AC harness. The control board itself is not identified as the source of the fault.
Can I fix F216 on my GE dishwasher myself?
Some causes of F216, such as a loose harness connector, can be addressed by a knowledgeable DIYer who is comfortable working safely around appliances. However, because this code involves the AC power side of the heater circuit, always disconnect the dishwasher from power before inspecting any components. Replacing the TCO or repairing damaged wiring is within reach for experienced DIYers, but if you are unsure about working with electrical components, a qualified technician is the safer choice.
Is it safe to use my GE dishwasher while it shows F216?
Running the dishwasher with an active F216 code is not recommended. The fault indicates the heater circuit is not operating correctly, which means the dishwasher may not be heating water properly and could fail to sanitize dishes. Additionally, a compromised heater circuit represents a potential safety concern that should be resolved before continued use.
Will resetting my GE dishwasher clear the F216 error code?
A power reset may temporarily clear the code display, but F216 will return if the underlying problem in the heater TCO circuit or AC harness has not been corrected. The code is a symptom of a real circuit fault, and resetting without repairing the root cause will not restore normal heater operation.
How much does it cost to repair a GE dishwasher showing F216?
Repair costs vary depending on which component has failed. A replacement TCO part is generally inexpensive, typically in the range of $10 to $40 for the part alone, while a heating element replacement can run $30 to $100 or more for parts. If a technician is needed for diagnosis and labor, total repair costs commonly fall in the range of $100 to $250 depending on your location and the extent of the repair.

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