Kelvinator Furnaces Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E0
The furnace control board shows E0 and will not start a heating cycle.
Control Board Communication Fault
E1
The furnace displays E1 and will not respond to thermostat calls.
Thermostat Circuit Open or Short
E10
Kelvinator furnace displays E10 and will not start; the control board LED may be off.
Line Voltage Power Fault
E11
Furnace displays E11 and attempts to ignite multiple times before locking out.
Ignition Lockout After Repeated Failures
E12
Kelvinator furnace displays E12 and the inducer runs continuously without ignition.
Pressure Switch Stuck Closed
E13
Furnace displays E13 and shuts down during or after the blower cycle.
Blower Overcurrent or Motor Protection Trip
E14
Kelvinator furnace displays E14 and will not respond to the thermostat; the control board LED may flash rapidly.
Internal Control Board Fault
E15
Furnace displays E15 and shuts down on very cold days.
Condensate Drain Fault (High-Efficiency Models)
E16
Kelvinator furnace displays E16 and the inducer starts and stops repeatedly without ignition.
Combustion Air Proving Fault
E17
Furnace displays E17 and runs the blower without heating; the thermostat appears normal.
Limit or Rollout Lockout (Manual Reset Required)
E18
Kelvinator furnace displays E18 and the blower runs at high speed continuously.
Emergency Fan Mode / Limit Circuit Open
E19
Furnace displays E19 and will not start; the thermostat screen may be blank.
Low-Voltage Power Fault (24V)
E2
The Kelvinator furnace shows E2, and the inducer motor does not start.
Inducer Motor or Pressure Switch Start Fault
E20
Kelvinator furnace shows E20 and cycles unexpectedly between heating and cooling modes (on dual-fuel or integrated systems).
Mode Control or Thermostat Configuration Fault
E3
The furnace displays E3 and shuts down shortly after the inducer starts.
Pressure Switch Failed to Close
E4
The Kelvinator furnace shows E4, and the burners do not light.
Ignition Failure / No Flame Detected
E5
The furnace displays E5 and shuts down after a few seconds of burner operation.
Flame Sense Loss / Flame Signal Weak
E6
The Kelvinator furnace shows E6, and the blower runs continuously without heat.
High Limit Switch Open / Overheat Lockout
E7
The furnace displays E7 and shuts down shortly after ignition, sometimes with rumbling or popping.
Flame Rollout or Rollout Switch Open
E8
The Kelvinator furnace shows E8, and the blower does not start after the burners ignite.
Blower Motor Failure or Fan Relay Fault
E9
Furnace displays E9 and cycles on and off frequently without reaching the set temperature.
Low Flame / Low Heat Output Fault
Symptom
Furnace causes noticeable drafts and cold spots in the home
Air Distribution / Duct Imbalance
Symptom
Furnace emits a burning dust smell when first started for the season
Dust Burn-Off on Heat Exchanger
Symptom
Furnace frequently trips the household circuit breaker
Electrical Overload or Short Circuit
Symptom
Furnace inducer motor runs but burners never light; no error code displayed
Silent Ignition Failure
Symptom
Furnace is very loud in the ductwork with a roaring air sound
Excessive Airflow / High Static Pressure
Symptom
Furnace leaks water around the base during heating operation
Condensate Leak (High-Efficiency Models)
Symptom
Furnace occasionally emits a brief gas smell at startup.
Minor Ignition Delay / Gas Odor
Symptom
Furnace produces a strong metallic or electrical burning smell
Overheating Electrical Component
Symptom
Furnace runs but some rooms are much colder than others
Zonal Heating Imbalance
Symptom
Furnace starts but shuts down within 30 seconds without obvious error code
Early Flame Failure or Safety Trip
Symptom
The furnace blower runs constantly even when the thermostat is not calling for heat.
Continuous Fan Operation
Symptom
The furnace makes a loud banging or booming noise at startup.
Delayed Ignition / Burner Light-Off Problem
Symptom
The furnace produces a high-pitched whine or screeching noise during operation.
Blower or Inducer Bearing Wear
Symptom
The furnace rattles or vibrates loudly when running.
Mechanical Vibration / Loose Components
Symptom
The furnace runs but does not produce enough heat; the home never reaches the set temperature.
Underfiring or Insufficient Heat Output
Symptom
The furnace short cycles, turning on and off every few minutes.
Short Cycling / Control or Sizing Issue
Symptom
The furnace starts then shuts off after a few minutes; the blower continues to run with cool air.
Overheating / High Limit Cycling
Symptom
The furnace will not start at all; no fan, no inducer, and no lights on the control board.
No Power / Dead Furnace
Symptom
Water dripping from metal vent pipe on non-condensing Kelvinator furnace
Flue Gas Condensation in Vent
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E0 |
The furnace control board shows E0 and will not start a heating cycle.
|
Control Board Communication Fault | View Details |
| E1 |
The furnace displays E1 and will not respond to thermostat calls.
|
Thermostat Circuit Open or Short | View Details |
| E10 |
Kelvinator furnace displays E10 and will not start; the control board LED may be off.
|
Line Voltage Power Fault | View Details |
| E11 |
Furnace displays E11 and attempts to ignite multiple times before locking out.
|
Ignition Lockout After Repeated Failures | View Details |
| E12 |
Kelvinator furnace displays E12 and the inducer runs continuously without ignition.
|
Pressure Switch Stuck Closed | View Details |
| E13 |
Furnace displays E13 and shuts down during or after the blower cycle.
|
Blower Overcurrent or Motor Protection Trip | View Details |
| E14 |
Kelvinator furnace displays E14 and will not respond to the thermostat; the control board LED may flash rapidly.
|
Internal Control Board Fault | View Details |
| E15 |
Furnace displays E15 and shuts down on very cold days.
|
Condensate Drain Fault (High-Efficiency Models) | View Details |
| E16 |
Kelvinator furnace displays E16 and the inducer starts and stops repeatedly without ignition.
|
Combustion Air Proving Fault | View Details |
| E17 |
Furnace displays E17 and runs the blower without heating; the thermostat appears normal.
|
Limit or Rollout Lockout (Manual Reset Required) | View Details |
| E18 |
Kelvinator furnace displays E18 and the blower runs at high speed continuously.
|
Emergency Fan Mode / Limit Circuit Open | View Details |
| E19 |
Furnace displays E19 and will not start; the thermostat screen may be blank.
|
Low-Voltage Power Fault (24V) | View Details |
| E2 |
The Kelvinator furnace shows E2, and the inducer motor does not start.
|
Inducer Motor or Pressure Switch Start Fault | View Details |
| E20 |
Kelvinator furnace shows E20 and cycles unexpectedly between heating and cooling modes (on dual-fuel or integrated systems).
|
Mode Control or Thermostat Configuration Fault | View Details |
| E3 |
The furnace displays E3 and shuts down shortly after the inducer starts.
|
Pressure Switch Failed to Close | View Details |
| E4 |
The Kelvinator furnace shows E4, and the burners do not light.
|
Ignition Failure / No Flame Detected | View Details |
| E5 |
The furnace displays E5 and shuts down after a few seconds of burner operation.
|
Flame Sense Loss / Flame Signal Weak | View Details |
| E6 |
The Kelvinator furnace shows E6, and the blower runs continuously without heat.
|
High Limit Switch Open / Overheat Lockout | View Details |
| E7 |
The furnace displays E7 and shuts down shortly after ignition, sometimes with rumbling or popping.
|
Flame Rollout or Rollout Switch Open | View Details |
| E8 |
The Kelvinator furnace shows E8, and the blower does not start after the burners ignite.
|
Blower Motor Failure or Fan Relay Fault | View Details |
| E9 |
Furnace displays E9 and cycles on and off frequently without reaching the set temperature.
|
Low Flame / Low Heat Output Fault | View Details |
| – |
Furnace causes noticeable drafts and cold spots in the home
|
Air Distribution / Duct Imbalance | View Details |
| – |
Furnace emits a burning dust smell when first started for the season
|
Dust Burn-Off on Heat Exchanger | View Details |
| – |
Furnace frequently trips the household circuit breaker
|
Electrical Overload or Short Circuit | View Details |
| – |
Furnace inducer motor runs but burners never light; no error code displayed
|
Silent Ignition Failure | View Details |
| – |
Furnace is very loud in the ductwork with a roaring air sound
|
Excessive Airflow / High Static Pressure | View Details |
| – |
Furnace leaks water around the base during heating operation
|
Condensate Leak (High-Efficiency Models) | View Details |
| – |
Furnace occasionally emits a brief gas smell at startup.
|
Minor Ignition Delay / Gas Odor | View Details |
| – |
Furnace produces a strong metallic or electrical burning smell
|
Overheating Electrical Component | View Details |
| – |
Furnace runs but some rooms are much colder than others
|
Zonal Heating Imbalance | View Details |
| – |
Furnace starts but shuts down within 30 seconds without obvious error code
|
Early Flame Failure or Safety Trip | View Details |
| – |
The furnace blower runs constantly even when the thermostat is not calling for heat.
|
Continuous Fan Operation | View Details |
| – |
The furnace makes a loud banging or booming noise at startup.
|
Delayed Ignition / Burner Light-Off Problem | View Details |
| – |
The furnace produces a high-pitched whine or screeching noise during operation.
|
Blower or Inducer Bearing Wear | View Details |
| – |
The furnace rattles or vibrates loudly when running.
|
Mechanical Vibration / Loose Components | View Details |
| – |
The furnace runs but does not produce enough heat; the home never reaches the set temperature.
|
Underfiring or Insufficient Heat Output | View Details |
| – |
The furnace short cycles, turning on and off every few minutes.
|
Short Cycling / Control or Sizing Issue | View Details |
| – |
The furnace starts then shuts off after a few minutes; the blower continues to run with cool air.
|
Overheating / High Limit Cycling | View Details |
| – |
The furnace will not start at all; no fan, no inducer, and no lights on the control board.
|
No Power / Dead Furnace | View Details |
| – |
Water dripping from metal vent pipe on non-condensing Kelvinator furnace
|
Flue Gas Condensation in Vent | View Details |
No matching codes found
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