Café Range Error Codes — CGS700P2MS1, CGB550P2MS1 & CHS900P2MS1 Complete Guide

Common Symptoms

• F0 or F1 on the Café display — control board internal fault, oven may be unresponsive or lock out heating
• F2 displayed — oven temperature runaway (bake mode) or self-clean door latch fault; possible fire risk
• F3 displayed — oven won't heat; temperature sensor open circuit (reads OL instead of ~1,100Ω)
• F4 displayed — oven won't heat; temperature sensor shorted (reads near 0Ω at room temperature)
• F7 code — touchpad function key stuck or touchpad ribbon cable fault
• F9 or F9 E0/E1 on Café gas models — gas valve circuit fault; oven won't ignite
• Self-clean cycle leaves door locked after completion, display shows F2
• CHS900P2MS1 induction range shows F5 or F6 — induction coil or inverter board fault

Most Likely Causes

1. 1

   F0 / F1 — Control Board Fault

   F0 and F1 on Café ranges indicate the main electronic range control (ERC) board has detected an internal failure — corrupted EEPROM, failed ADC, or relay fault. Café control boards are NOT interchangeable with standard GE or GE Profile boards even when the part numbers appear similar — Café firmware supports the WiFi Connect, premium touch display, and custom control interface features that standard GE boards do not. A 30-second power reset (circuit breaker off for 30 seconds) clears transient F0/F1 caused by voltage spikes. If the code returns within 2 minutes of restoring power consistently, the ERC board has failed and must be replaced. Always confirm the replacement board part number using your full model number and serial number at geappliances.com/parts — Café boards for CGS700P2MS1, CGB550P2MS1, and CHS900P2MS1 each have distinct part numbers.

2. 2

   F2 — Temperature Runaway (Bake Mode) or Self-Clean Door Latch Fault

   F2 has two distinct contexts on Café ranges: (1) During normal bake operation, F2 means the oven temperature exceeded the maximum safe limit (~590°F / 310°C) — typically caused by a stuck relay on the ERC board holding the bake element energized after the cycle was canceled. This is a fire hazard. Shut off the circuit breaker immediately and replace the control board. (2) During or after a self-clean cycle, F2 triggers the door latch safety lockout — the door latch motor assembly WB14K10011 contains an integral thermal fuse that opens under self-clean temperatures. If the door won't unlock post-clean and F2 is displayed, test the thermal fuse in WB14K10011 for continuity. Open fuse = replace the assembly.

3. 3

   F3 — Oven Temperature Sensor Open Circuit (WB21X5243)

   F3 means the oven RTD sensor WB21X5243 has an open circuit — the ERC board reads infinite resistance (OL) where it expects approximately 1,100Ω at room temperature. The sensor probe is mounted in the upper-rear wall of the oven cavity on CGS700P2MS1 gas slide-in models and through the rear panel on CGB550P2MS1 freestanding models. Test by disconnecting the 2-pin harness connector at the sensor and probing resistance with a multimeter: OL = open circuit = replace WB21X5243. Also check the harness for damage — a broken wire in the harness between the sensor and the ERC board produces the same F3 code even if the sensor itself is good.

4. 4

   F4 — Oven Temperature Sensor Shorted (WB21X5243)

   F4 is the complement to F3 — the oven sensor WB21X5243 has shorted internally and reads near 0Ω instead of ~1,100Ω. The ERC board interprets this as an impossibly high temperature and locks out the bake relay. If resistance reads below 500Ω or above 2,500Ω at room temperature (~70°F), replace WB21X5243. On Café slide-in models (CGS700P2MS1), the sensor harness runs along the left side of the oven cavity — inspect the harness for pinch points where it passes through the oven floor panel.

5. 5

   F7 — Touchpad Function Key Stuck

   F7 means the ERC board detected a function key held in the pressed state longer than allowed — caused by liquid intrusion under the premium glass touch panel (Café models use a glass-over-membrane or fully capacitive glass touchpad), a damaged touchpad ribbon connector, or physical debris. Café's premium glass touchpad is more resistant to spills than standard GE models but can still trap liquid at the bezel edge. A 5-minute power reset clears F7 from temporary liquid intrusion. If F7 persists, the glass touchpad assembly must be replaced — on Café models the glass touchpad and display are integrated and sold as a single unit (model-specific; confirm part at geappliances.com/parts).

6. 6

   F9 / F9 E0 / F9 E1 — Gas Valve Circuit Fault (Café Gas Models: CGS700P2MS1, CGB550P2MS1)

   The F9 series error code appears exclusively on Café gas models and indicates a fault in the oven gas valve circuit. F9 E0 typically means the ERC board cannot detect the igniter drawing current (igniter failed or harness open). F9 E1 means the gas valve solenoid circuit has an open or short. Test the oven igniter (glow-bar type, part WB2X9154 or model-specific): a healthy igniter glows orange within 60 seconds of starting the oven bake cycle; a weak or cracked igniter appears dim or doesn't glow. Resistance check: disconnect power and probe the igniter terminals — working GE/Café oven igniter reads 50–200Ω. OL or near-0Ω = replace the igniter. Also verify that the gas supply is turned on and that the gas pressure at the range meets minimum requirements (7 inches water column / 7" WC for natural gas).

7. 7

   F5 / F6 — Induction Coil or Inverter Board Fault (CHS900P2MS1, CHS950P2MS1 Induction Models)

   F5 and F6 error codes appear on Café induction ranges (CHS900P2MS1, CHS950P2MS1) and indicate a fault in the induction coil assembly or the inverter/power board that drives the coils. F5 typically identifies a specific coil zone fault (the display may indicate which burner zone is affected). F6 often indicates an inverter board communication fault. Induction coil and inverter board repairs require specialized knowledge of high-frequency power electronics — these repairs are generally not DIY-appropriate and should be performed by a GE/Café-certified technician. A 30-second power reset clears transient F5/F6 caused by pan removal mid-cycle or power fluctuations.

Quick DIY Checks

1. 1Perform a 30-second power reset first — clears most transient codes: switch off the circuit breaker for the Café range for a full 30 seconds. Restore power and observe the display. On Café CGS700P2MS1, CGB550P2MS1, and CHS900P2MS1, transient F0, F1, F7, F5, and F6 codes often clear after a proper reset if triggered by a voltage spike or power interruption. Exception: F2 in bake mode (not self-clean) is a fire hazard — do NOT reset and attempt to use the oven; shut off the breaker and call a technician. F3 and F4 (sensor failures) and F9 (gas valve) are hardware faults that will not clear permanently with a reset.
2. 2Test the oven temperature sensor (WB21X5243) for F3 / F4 codes: disconnect power at the circuit breaker. Open the oven door and locate the RTD sensor probe in the upper-rear cavity wall — on CGS700P2MS1 it is accessible from inside the oven cavity through two Phillips screws. Remove the screws and pull the probe 4–6 inches into the cavity to access the 2-pin harness connector. Disconnect the connector and set your multimeter to Ω mode. Probe the sensor terminals: working GE/Café oven sensor at room temperature reads approximately 1,100Ω ± 50Ω. F3 = OL (open circuit) → replace WB21X5243 ($20–$45). F4 = near 0Ω (shorted) → replace WB21X5243. Sensor replacement is a 20-minute repair requiring only a Phillips screwdriver.
3. 3Check for F2 door latch fault after self-clean — test WB14K10011 thermal fuse: after a self-clean cycle, if the Café oven door won't unlock and F2 is displayed, the thermal fuse inside the door lock assembly WB14K10011 has likely blown. Disconnect power. Access the door lock assembly — on CGS700P2MS1 slide-in models, the assembly is accessible from the top rear by removing the back panel (4 Phillips screws). Locate the thermal fuse in series with the door lock motor winding on the WB14K10011 harness. Set your multimeter to continuity mode and probe across the fuse terminals. Good fuse = beep (continuity). Open fuse = OL = replace WB14K10011 ($40–$90). The thermal fuse is not replaceable separately — the entire door lock assembly must be replaced.

1. 4Diagnose F9 gas valve fault on CGS700P2MS1 / CGB550P2MS1: with power on, set the oven to Bake at 350°F. Watch through the oven door window — the igniter (a thin orange rod or flat glow bar at the rear of the oven) should begin to glow bright orange within 30–45 seconds. If the igniter glows but the gas never ignites, the gas valve is not opening (solenoid fault or F9 E1). If the igniter never glows at all, suspect igniter failure or harness fault (F9 E0). Disconnect power. Locate the igniter at the bottom of the oven below the bake element. Disconnect the igniter harness and probe resistance: working Café oven igniter reads 50–200Ω. OL = failed igniter = replace. Also verify gas supply is on: the quarter-turn ball valve on the flex gas line behind the range should be parallel to the line (open position). If the igniter is good and gas supply is confirmed, test the oven gas valve solenoid resistance (100–300Ω on a working valve; OL = failed solenoid).
2. 5Verify F2 temperature runaway (bake mode) — identify stuck relay on ERC board: in bake mode (not self-clean), F2 means the oven exceeded maximum safe temperature while a relay on the ERC board was stuck in the closed position, continuing to power the bake element after the target temperature was reached. Do NOT reset and use the oven. Shut off the circuit breaker. Confirm the oven sensor (WB21X5243) is within spec (Step 2) — if the sensor is fine and reads ~1,100Ω but F2 appeared during normal bake, the ERC board has a failed bake relay. The board must be replaced (model-specific Café ERC board; confirm at geappliances.com/parts).
3. 6Access Café service/diagnostic mode to read stored fault codes: on most Café gas and electric range models (CGS700P2MS1, CHS900P2MS1), a service diagnostic mode stores the last several fault codes and can help identify intermittent failures. Procedure: with the oven door closed and the range off, press and hold the BAKE + BROIL buttons simultaneously for 3 seconds until the display changes. Use the Up/Down arrow or temperature buttons to scroll through stored fault codes. Write down all stored codes before resetting. Press CANCEL to exit service mode. Note: the exact button combination varies by model and software version — if this sequence doesn't work, consult the Café technical service guide for your model (available at geappliances.com/service or by calling 1-800-GECares). Stored codes provide a more accurate diagnostic picture than a single displayed code.
4. 7Test the touchpad ribbon for F7 on Café glass touch panel models: disconnect power. On Café ranges with the premium glass touchpad (CHS900P2MS1, CHS950P2MS1, CGS700P2MS1), the glass panel sits in front of the ERC board with a ribbon cable connection at the lower edge of the panel or via a flex connector behind the bezel. Access requires removing 3–4 Phillips screws from the rear of the control panel and tilting the panel assembly forward (support it — don't let it hang by the wires). Inspect the ribbon connector for corrosion, moisture, or a loose seating. Unlock the ZIF bar, remove the ribbon, clean contacts with isopropyl alcohol on a cotton swab, allow to fully dry, and firmly reseat. If F7 persists after reseating, the glass touchpad assembly must be replaced (model-specific; do not use a standard GE touchpad on a Café model — the premium display and interface differ).
5. 8Confirm GE vs. Café control board compatibility before ordering: Café ERC boards have distinct firmware that supports WiFi Connect (SmartHQ app integration), the premium glass touch display, and custom control interface features. A standard GE WB27K5162 board will NOT function correctly in a Café range even if the physical connector layout appears identical. Before ordering any board, visit geappliances.com/parts and enter your FULL model number (e.g., CGS700P2MS1) and serial number. The correct Café ERC board will be listed as a 'Café' brand part, not a standard GE part. If your range is connected to SmartHQ, note that replacing the ERC board will require re-pairing the appliance to the app.

Repair vs Replace

Recommended Tools & Parts

• GE / Café Oven Temperature Sensor — WB21X5243

  RTD temperature sensor for Café CGS700P2MS1, CGB550P2MS1, CHS900P2MS1, and compatible GE/Café ranges. Fixes F3 (open circuit) and F4 (shorted) error codes. Should read approximately 1,100Ω at room temperature (70–77°F). 20-minute DIY repair requiring only a Phillips screwdriver. Confirm compatibility using your model and serial number.

  $20–$45

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• Door Latch Assembly — WB14K10011

  Self-clean door lock motor and thermal fuse assembly for Café and GE ranges. Fixes F2 self-clean door latch fault — door stuck locked after self-clean cycle. Contains integral thermal fuse; if fuse is open (OL), entire assembly must be replaced. Test motor winding (100–300Ω) and thermal fuse continuity before ordering.

  $40–$90

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• Oven Igniter (Glow Bar) — CGS700P2MS1 / CGB550P2MS1

  Replacement oven igniter (glow-bar type) for Café gas ranges including CGS700P2MS1 and CGB550P2MS1. Fixes F9 / F9 E0 codes — igniter should glow bright orange within 45 seconds and read 50–200Ω. A weak, dim, or cracked igniter is the most common cause of F9 E0. Confirm part number using your model number at geappliances.com/parts.

  $25–$60

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• Café ERC Control Board (Model-Specific)

  Main electronic range control board for Café ranges — DO NOT substitute a standard GE WB27K5162. Café boards carry distinct firmware for WiFi Connect (SmartHQ), premium glass touchpad, and Café interface features. Fixes F0 and F1 control board fault codes. Order only using your full Café model number and serial number from geappliances.com/parts to receive the correct Café-tier board.

  $150–$300

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• Digital Multimeter

  Required for testing oven sensor resistance (1,100Ω spec), door latch thermal fuse continuity, oven igniter resistance (50–200Ω), and gas valve solenoid resistance (100–300Ω). Any multimeter with Ω mode and a continuity beeper is sufficient.

  $15–$35

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• Non-Contact Voltage Tester

  Essential safety tool for verifying that the 240V supply to the Café range is fully de-energized before opening panels or probing wiring. Beeps and lights up when live voltage is detected. Required before any electrical work on a 240V range.

  $15–$30

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Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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