Description: The furnace is waiting for a heating command.
Recommendations: No action needed unless the furnace fails to respond when heating is required.
错误代码
Description
Recommended Action
0
Standby Mode
No action needed unless furnace fails to respond.
Error Code F: Continuous Fan Operation
Description: The blower fan is running continuously without a heating cycle. Recommendations: Check thermostat settings and switch the fan from “On” to “Auto.”
错误代码
Description
Recommended Action
F
Continuous Fan Operation
Adjust thermostat settings to “Auto.”
Error Code H: Active Heating Mode
Description: The furnace is in the middle of a heating cycle. Recommendations: No action needed if heating is operating normally.
错误代码
Description
Recommended Action
H
Active Heating Mode
No action needed if heating functions properly.
Error Code 10: One-Hour Lockout
Description: The furnace has attempted ignition multiple times and locked out for safety. Recommendations: Check the gas supply, ignitor, and flame sensor. Reset the system after addressing any issues.
错误代码
Description
Recommended Action
10
One-Hour Lockout
Check gas supply, ignitor, and flame sensor. Reset system.
Error Code 11: Ignition Failure
Description: The flame did not ignite. Recommendations: Ensure gas is flowing, clean the ignitor, and check the gas valve operation.
错误代码
Description
Recommended Action
11
Ignition Failure
Verify gas flow, clean ignitor, check gas valve.
Error Code 12: Weak Flame Signal
Description: The sensor detects a weak flame. Recommendations: Clean or replace the flame sensor and check for burner obstructions.
错误代码
Description
Recommended Action
12
Weak Flame Signal
Clean or replace flame sensor, check burner.
Error Code 13: Flame Extinguished
Description: The flame was detected but unexpectedly went out. Recommendations: Check gas supply, flame sensor, and inducer motor operation.
错误代码
Description
Recommended Action
13
Flame Extinguished
Check gas supply, flame sensor, and inducer motor.
Error Code 14: Unexpected Flame Detection
Description: The system detected a flame when it should not be present. Recommendations: This may indicate a faulty gas valve or control board. Contact a professional furnace service immediately.
错误代码
Description
Recommended Action
14
Unexpected Flame Detection
Contact a professional to inspect gas valve or control board.
Error Code 20: Twinning Fault
Description: Issues with settings or wiring in dual furnace configurations. Recommendations: Verify wiring and compatibility of control boards.
错误代码
Description
Recommended Action
20
Twinning Fault
Check wiring and ensure correct configuration.
Error Code 22: High Limit Switch Activated
Description: The switch is triggered due to excessive temperature. Recommendations: Inspect for blocked airflow (e.g., dirty filters or closed vents). Replace switch if necessary.
错误代码
Description
Recommended Action
22
High Limit Switch Triggered
Inspect for airflow restrictions. Replace switch if needed.
Error Code 26: Incorrect Wiring
Description: Faulty wiring detected, which poses a safety hazard. Recommendations: Shut off power immediately and correct wiring issues.
错误代码
Description
Recommended Action
26
Incorrect Wiring
Shut off power and fix wiring immediately.
Error Code 33: Rollout Switch Tripped
Description: The flame has rolled out of the burner chamber. Recommendations: Inspect for vent blockages or a cracked heat exchanger. Reset switch if safe.
错误代码
Description
Recommended Action
33
Rollout Switch Tripped
Check for vent blockages and cracked heat exchanger.
Error Code 55 & 57: Pressure Switch Issues
Description: The pressure switch is not closing (55) or opening (57) as expected. Recommendations: Inspect venting, tubing, and the inducer motor for blockages or malfunctions.
错误代码
Description
Recommended Action
55
Pressure Switch Not Closing
Inspect venting, tubing, and inducer motor.
57
Pressure Switch Not Opening
Check airflow and ensure switch functionality.
Error Code 61: Blower Motor Fault
Description: The blower motor isn’t running properly. Recommendations: Check the capacitor, wiring, and motor function.
错误代码
Description
Recommended Action
61
Blower Motor Fault
Inspect blower capacitor, wiring, and motor.
Notes:
Fault code history displayed at power up – most recent fault displayed first.
To clear fault code history, toggle dipswitch SW3-6 on/off three times. Two horizontal bars will be displayed for 4 sec.
