The Carrier Infinity furnace reset button clears error codes that trigger flashing lights on the control board. Pressing the button after a full power cycle restores operation without further intervention in most cases. Owners confirm the model number on the unit data plate before attempting any reset to match the correct procedure.
Carrier Infinity Furnace Control Board Layout
Owners begin by shutting off power at the main breaker to the Carrier Infinity furnace. They remove the front access panel using a screwdriver to expose internal components. The control board sits behind this panel and contains both the diagnostic lights and the reset button. Proper identification prevents damage to wiring during handling. Multiple models share similar board layouts but differ in button placement.
Compare Furnace Reset Methods
Homeowners facing issues with their Carrier Infinity furnace often need to compare various reset methods to stop the flashing lights effectively. The built-in reset button provides one quick option while other techniques involve power cycling or accessing internal components. Understanding these differences helps in choosing the safest and most efficient solution for the specific situation.
Four reset approaches exist for Carrier Infinity units. Each carries distinct requirements for tools and expertise. Selection depends on the specific flashing pattern observed.
| Method | Cost Range | Time Required | Difficulty Level | Success Rate | Warranty Impact |
|---|---|---|---|---|---|
| Power Cycle Reset | $0 | 10 minutes | 1 | 65 percent | None |
| Button Press Reset | $0 | 5 minutes | 2 | 80 percent | None |
| Thermostat Replacement | $150-300 | 45 minutes | 3 | 90 percent | Voids if improper |
| Control Board Swap | $400-600 | 90 minutes | 4 | 95 percent | Voids if improper |
Review Power Cycle Reset Option
This approach requires no tools beyond access to the breaker panel. Owners turn power off for two full minutes then restore it. The Carrier Infinity furnace runs a self-test and often clears transient faults. It works best for lights that flash after storms or brief outages. Persistent codes after this step point to deeper issues.
Review Button Press Reset Option
The dedicated reset button on the control board offers a direct fix. Owners locate the small black or red button near the LED display. They press and hold it for five seconds while power remains on. This action clears stored error codes in the Carrier Infinity system memory. Confirmation comes when lights stop flashing and the unit resumes normal heating cycles.
Carrier Infinity Thermostat Replacement Steps
A faulty thermostat can send constant signals that mimic furnace faults. Owners select a compatible Carrier Infinity compatible model with matching communication protocols. They disconnect the old unit at the wall plate and wire the new one using the existing harness. The new thermostat often resolves flashing lights tied to communication errors. Testing follows installation to verify two-way data flow.
Troubleshoot Common Infinity Error Codes
Error codes appear as specific flash sequences on the board. Owners count the flashes and match them to the unit manual. Common patterns include pressure switch faults or flame sensor issues. Cleaning the sensor with fine emery cloth resolves many ignition related codes. Persistent patterns after reset require checking vent pipes for blockages.
Carrier Infinity Blower Motor Shaft Check
The blower motor drives airflow across the heat exchanger. Owners remove the blower compartment door and check for debris on the wheel. They spin the motor shaft by hand to detect binding. Lubrication at the ports extends motor life when bearings show wear. Replacement becomes necessary if the motor fails to start after reset attempts.
Infinity Furnace Data Plate Part Numbers
Owners verify the exact part numbers from the unit data plate before purchase. They select OEM control boards or thermostats matched to the Infinity series. Installation follows manufacturer torque specs on all fasteners. This step ensures compatibility and avoids repeated service calls.

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