Whirlpool Water Heaters Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E1
E1 error on gas power vent or direct vent Whirlpool water heater: no ignition or unit shuts down.
Ignition Lockout
E2
E2 error on gas power vent model: blower or pressure switch problem, unit will not fire.
Blower / Draft Fault
E3
E3 error on gas model: ECO (Energy Cut Off) or high limit opened, burner will not light.
High Limit / ECO Trip
E4
E4 error on gas model: flammable vapor sensor (FVS) fault or lockout.
Flammable Vapor Sensor Activation / Failure
E5
E5 error on gas model: thermopile or pilot circuit fault, pilot will not stay lit.
Thermopile / Pilot Failure
F01
Control board fault code F01 is displayed; the water heater is unresponsive or stuck in standby.
Main Control Board Failure
F02
F02 error is displayed; the water heater is not heating or is shutting down shortly after starting.
Temperature Sensor (Thermistor) Failure
F03
F03 error code; the water temperature overshoots the setpoint, or the unit shuts down due to overheating.
Overtemperature / High Limit Trip
F04
F04 error is displayed; there is no hot water, and the unit indicates an ignition or flame failure on gas models.
Ignition Failure / Flame Not Detected
F05
F05 error code; the water heater will not start the heating cycle, and the fan may run briefly then stop (power vent or hybrid models).
Pressure Switch or Air Proving Fault
F06
F06 error; the hybrid or heat pump water heater is not heating properly, and the unit may revert to electric resistance mode.
Heat Pump System Fault
F07
F07 error code; there is no hot water, and the elements are not energizing on electric or hybrid models.
Heating Element Circuit Fault
F08
F08 error; the hybrid water heater shows a communication or internal control error and may lock out.
Control Communication Error
F09
F09 error code; the water heater is not heating, which may indicate a line voltage or power supply issue.
Line Voltage / Power Supply Fault
F10
F10 error: Hybrid water heater indicates a condensate or drain issue, which may shut down heat pump mode.
Condensate Drain Fault
F11
F11 error code: Hybrid water heater shows a fan or airflow fault, which may cause it to run loudly then stop.
Evaporator Fan / Blower Fault
F12
F12 error: Hybrid water heater indicates an ambient temperature sensor fault, which may lock out heat pump mode.
Ambient Temperature Sensor Failure
F13
F13 error code: Hybrid water heater indicates an evaporator coil sensor fault.
Evaporator Temperature Sensor Failure
F14
F14 error: Hybrid water heater indicates a discharge or compressor temperature sensor fault.
Discharge Temperature Sensor Failure
F15
F15 error code: Hybrid water heater indicates a tank temperature sensor fault (upper or lower).
Tank Thermistor Fault
F16
F16 error: Hybrid water heater indicates a leak detection or pan sensor fault (on models with a leak sensor).
Leak Sensor Activation / Fault
F17
F17 error code: Hybrid water heater indicates a compressor overload or high discharge temperature.
Compressor Overload / High Discharge Protection
F18
F18 error: Hybrid water heater indicates an anode or corrosion protection system fault (on powered anode models).
Powered Anode / Corrosion Protection Fault
F19
F19 error code: Hybrid water heater indicates a T&P (temperature and pressure) sensor or switch fault (on monitored models).
T&P Monitoring Fault
Symptom
Condensation or water on the floor around a new gas water heater during first operation.
Normal Condensation vs. Leak Misdiagnosis
Symptom
Gas Whirlpool water heater pilot will not light or stay lit (no electronic display).
Pilot Ignition Failure
Symptom
Hybrid Whirlpool water heater is very noisy (compressor/fan) during operation.
Excessive Vibration / Noise
Symptom
Hybrid Whirlpool water heater not producing enough hot water in Heat Pump mode.
Underperformance in Heat Pump Mode
Symptom
Insufficient hot water, runs out quickly on electric Whirlpool water heater.
Partial Heating / Lower Element Not Operating
Symptom
No hot water at all on electric Whirlpool water heater (non-digital model), no error code.
Complete Loss of Heating on Electric Model
Symptom
Rumbling, popping, or banging noises during heating.
Sediment Boiling / Scale Buildup
Symptom
Sooting or yellow, lazy flame on a gas Whirlpool water heater.
Incomplete Combustion / Venting Issue
Symptom
T&P relief valve discharging water periodically.
Temperature and Pressure Relief Discharge
Symptom
Water hammer or banging pipes when the water heater cycles or valves close.
Hydraulic Shock / Water Hammer
Symptom
Water has a rotten egg or sulfur smell, especially hot water.
Hydrogen Sulfide Odor Reaction
Symptom
Water has a rusty or discolored appearance from hot taps.
Corrosion / Rust Contamination
Symptom
Water heater leaking from the bottom or from a tank seam.
Tank Rupture / Internal Tank Leak
Symptom
Water heater leaking from the drain valve at the bottom.
Leaking Drain Valve
Symptom
Water heater leaks from the top, around inlet/outlet connections.
Top Plumbing Connection Leak
Symptom
Water heater trips the breaker frequently.
Electrical Overload / Short
Symptom
Water too hot, scalding at taps, even with thermostat set normally.
Overheating / Thermostat Stuck Closed
Symptom
Whirlpool water heater will not start after a power outage.
Control Lockout / Power Reset Issue
Symptom
Whistling or high-pitched noise from the water heater when hot water is used.
Flow Restriction / Partially Closed Valve
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E1 |
E1 error on gas power vent or direct vent Whirlpool water heater: no ignition or unit shuts down.
|
Ignition Lockout | View Details |
| E2 |
E2 error on gas power vent model: blower or pressure switch problem, unit will not fire.
|
Blower / Draft Fault | View Details |
| E3 |
E3 error on gas model: ECO (Energy Cut Off) or high limit opened, burner will not light.
|
High Limit / ECO Trip | View Details |
| E4 |
E4 error on gas model: flammable vapor sensor (FVS) fault or lockout.
|
Flammable Vapor Sensor Activation / Failure | View Details |
| E5 |
E5 error on gas model: thermopile or pilot circuit fault, pilot will not stay lit.
|
Thermopile / Pilot Failure | View Details |
| F01 |
Control board fault code F01 is displayed; the water heater is unresponsive or stuck in standby.
|
Main Control Board Failure | View Details |
| F02 |
F02 error is displayed; the water heater is not heating or is shutting down shortly after starting.
|
Temperature Sensor (Thermistor) Failure | View Details |
| F03 |
F03 error code; the water temperature overshoots the setpoint, or the unit shuts down due to overheating.
|
Overtemperature / High Limit Trip | View Details |
| F04 |
F04 error is displayed; there is no hot water, and the unit indicates an ignition or flame failure on gas models.
|
Ignition Failure / Flame Not Detected | View Details |
| F05 |
F05 error code; the water heater will not start the heating cycle, and the fan may run briefly then stop (power vent or hybrid models).
|
Pressure Switch or Air Proving Fault | View Details |
| F06 |
F06 error; the hybrid or heat pump water heater is not heating properly, and the unit may revert to electric resistance mode.
|
Heat Pump System Fault | View Details |
| F07 |
F07 error code; there is no hot water, and the elements are not energizing on electric or hybrid models.
|
Heating Element Circuit Fault | View Details |
| F08 |
F08 error; the hybrid water heater shows a communication or internal control error and may lock out.
|
Control Communication Error | View Details |
| F09 |
F09 error code; the water heater is not heating, which may indicate a line voltage or power supply issue.
|
Line Voltage / Power Supply Fault | View Details |
| F10 |
F10 error: Hybrid water heater indicates a condensate or drain issue, which may shut down heat pump mode.
|
Condensate Drain Fault | View Details |
| F11 |
F11 error code: Hybrid water heater shows a fan or airflow fault, which may cause it to run loudly then stop.
|
Evaporator Fan / Blower Fault | View Details |
| F12 |
F12 error: Hybrid water heater indicates an ambient temperature sensor fault, which may lock out heat pump mode.
|
Ambient Temperature Sensor Failure | View Details |
| F13 |
F13 error code: Hybrid water heater indicates an evaporator coil sensor fault.
|
Evaporator Temperature Sensor Failure | View Details |
| F14 |
F14 error: Hybrid water heater indicates a discharge or compressor temperature sensor fault.
|
Discharge Temperature Sensor Failure | View Details |
| F15 |
F15 error code: Hybrid water heater indicates a tank temperature sensor fault (upper or lower).
|
Tank Thermistor Fault | View Details |
| F16 |
F16 error: Hybrid water heater indicates a leak detection or pan sensor fault (on models with a leak sensor).
|
Leak Sensor Activation / Fault | View Details |
| F17 |
F17 error code: Hybrid water heater indicates a compressor overload or high discharge temperature.
|
Compressor Overload / High Discharge Protection | View Details |
| F18 |
F18 error: Hybrid water heater indicates an anode or corrosion protection system fault (on powered anode models).
|
Powered Anode / Corrosion Protection Fault | View Details |
| F19 |
F19 error code: Hybrid water heater indicates a T&P (temperature and pressure) sensor or switch fault (on monitored models).
|
T&P Monitoring Fault | View Details |
| – |
Condensation or water on the floor around a new gas water heater during first operation.
|
Normal Condensation vs. Leak Misdiagnosis | View Details |
| – |
Gas Whirlpool water heater pilot will not light or stay lit (no electronic display).
|
Pilot Ignition Failure | View Details |
| – |
Hybrid Whirlpool water heater is very noisy (compressor/fan) during operation.
|
Excessive Vibration / Noise | View Details |
| – |
Hybrid Whirlpool water heater not producing enough hot water in Heat Pump mode.
|
Underperformance in Heat Pump Mode | View Details |
| – |
Insufficient hot water, runs out quickly on electric Whirlpool water heater.
|
Partial Heating / Lower Element Not Operating | View Details |
| – |
No hot water at all on electric Whirlpool water heater (non-digital model), no error code.
|
Complete Loss of Heating on Electric Model | View Details |
| – |
Rumbling, popping, or banging noises during heating.
|
Sediment Boiling / Scale Buildup | View Details |
| – |
Sooting or yellow, lazy flame on a gas Whirlpool water heater.
|
Incomplete Combustion / Venting Issue | View Details |
| – |
T&P relief valve discharging water periodically.
|
Temperature and Pressure Relief Discharge | View Details |
| – |
Water hammer or banging pipes when the water heater cycles or valves close.
|
Hydraulic Shock / Water Hammer | View Details |
| – |
Water has a rotten egg or sulfur smell, especially hot water.
|
Hydrogen Sulfide Odor Reaction | View Details |
| – |
Water has a rusty or discolored appearance from hot taps.
|
Corrosion / Rust Contamination | View Details |
| – |
Water heater leaking from the bottom or from a tank seam.
|
Tank Rupture / Internal Tank Leak | View Details |
| – |
Water heater leaking from the drain valve at the bottom.
|
Leaking Drain Valve | View Details |
| – |
Water heater leaks from the top, around inlet/outlet connections.
|
Top Plumbing Connection Leak | View Details |
| – |
Water heater trips the breaker frequently.
|
Electrical Overload / Short | View Details |
| – |
Water too hot, scalding at taps, even with thermostat set normally.
|
Overheating / Thermostat Stuck Closed | View Details |
| – |
Whirlpool water heater will not start after a power outage.
|
Control Lockout / Power Reset Issue | View Details |
| – |
Whistling or high-pitched noise from the water heater when hot water is used.
|
Flow Restriction / Partially Closed Valve | View Details |
No matching codes found
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