Whirlpool water heater troubleshooting

The Whirlpool Corporation is among the world’s leaders in household appliance manufacturing. In 2015 its annual sales exceeded $21 billion, while the number of employees almost reached 100,000. In addition to its flagship Whirlpool brand the company also produces white goods under more than 12 other brands, including Maytag, KitchenAid, and Indesit. The company has several manufacturing facilities in the US. Four of them are located in Ohio, and there are also production sites in Oklahoma, Tennessee, and Iowa.
Having trouble with your Whirlpool water heater? There are numerous problems that you may be having, in most cases they are self-evident (for instance, the water coming from the hot water faucet is cool or absolutely cold, or you spot dripping or puddling near the appliance). Other possible symptoms include unusual gurgling or popping sounds. Solutions to these situations are described below.

Whirlpool 121802 water heater troubleshooting

ProblemPossible cause(s)Corrective action
No hot water1. No power to heater1. Turn on electrical switch. Check for blown fuses or tripped breaker
2. High Temperature Limit Switch open2. Reset. Check for source of trouble and correct
3. Non-Functioning upper thermostat3. Replace thermostat
Insufficient hot water1. Non-Functioning thermostats1. Replace thermostats
2. Non-Functioning lower element2. Replace element
3. Improper calibration3. Replace thermostats
4. Thermostats set too low4. Set thermostats to desired temperature
5. Sediment or lime in tank5. Drain. Determine if water treatment is needed
6. Heater too small for job6. Install adequate water heater
7. Wrong piping connections7. Correct piping
8. Leaking faucets8. Repair faucets
9. Wasted hot water9. Advise customer
10. Long runs of exposed pipe10. Insulate piping
11. Hot water piping on outside wall11. Insulate piping
High operation costs1. Improper Calibration1. Replace thermostats
2. Thermostats set too high2. Set thermostat to desired setting
3. Sediment or lime in tank3. Drain. Flush-Provide water treatment if needed
4. Heater too small for job4. Install adequate heater
5. Wrong piping connections5. Correct piping
6. Leaking faucets6. Repair faucets
7. Wasted hot water7. Advise customer
8. Long runs of exposed piping8. Insulate piping
9. Hot water piping in exposed wall9. Insulate piping
Slow hot water recovery1. Non-Functioning upper element1. Replace element
2. Non-Functioning lower element2. Replace element
Drip from relief valve1. Excessive water pressure1. Use Pressure Reducing Valve and Pressure Relief Valve
2. Closed system2. See “Closed SystenVThermal Expansion" section
Thermostat does not shut off1. Non-Functioning thermostats1. Replace thermostats
2. Improper calibration2. Replace thermostats
Water odor1. Sulfides in the water1. See “Anode Rod/Water Odor" section

Whirlpool Hybrid Electric Heat Pump water heater troubleshooting

Display showsIndicatesCorrective action
EUCUpper element is not functioning1. Turn off power at the circuit breaker/fuse box and check for a loose connection at the element. For access directions see “Heating Element Replacement" section. If error persists proceed to the next step.
2. Replace non-functioning element. See “Heating Element Replacement' section.
ELCLower element is not functioning1. Turn off power at the circuit breaker/fuse box and check for a loose connection at the element. For access directions see “Heating Element Replacement" section. If error persists proceed to the next step.
2. Replace non-functioning element. See “Heating Element Replacement' section.
SFThe air filter is dirty.1. Turn off power at the circuit breaker/fuse box.
2. Clean the air filter. See “Air Filter CleaningfReplacement" section.
ECFThe heat pump compressor is starting/stopping frequentty.1. Turn off power at the circuit breaker/fuse box.
2. Clean the air filter. See *Air Filter Cleaning/Replacement' section.
3. If error persist, please contact a qualified person to check the fan wire connection.
E20 or E21Upper Temperature Sensor is not functioning.Contact a qualified person to service the unit.
E30 or E31Lower Temperature Sensor is not functioning.
E50 or E51Heat Pump Suction Temperature Sensor is not functioning.
E10 or E11Heat Pump Coil Temperature Sensor is not functioning.
E40 or E41Heat Pump Discharge Temperature Sensor is not functioning.
EdrNot enough water in the tank (tank not full).Fill completely-Open all hot water taps in home and run until water (uninterupted) flows from all open hot water taps.
EPLPower suppty voltage is too lowCheck the power supply to the unit and make sure it is higher than 204V
EDHHeat Pump Discharge Temperature is too high.Contact a qualified technician to service the unit.
EoF (If Accessory Condensate Pump is installed)Condensate pump failure.1. Check to see if accessory condensate pump is plugged in and has power. Also check circuit breaker/fuse box and GFCI (if used). If error persists, proceed to the next step.
2. Check condensate pump outlet tube for blockage. If error persists, proceed to the next step.
3. Check control wire connections to condensate pump. If error persists, proceed to the next step.
4. Replace accessory condensate pump. If error persists, contact a qualified technician to service the unit.
ECLHeat pump suction pressure is too low.Contact a qualified technician to service the unit
EEEEEPROM failure
ECCHeat pump compressor is not functioning.
“-”,”--”,”---”Unit is doing a system diagnostic.No action is necessary.
ICEHeat pump is in defrosting cycle.
HPOHeat pump is out of operation envelope.

Whirlpool Residential Gas water heater troubleshooting

ProblemPOSSIBLE CAUSE(S)CORRECTIVE ACTION
Burner will not ignite1. Pilot will not light1. See PILOT WILL NOT LIGHT OR REMAIN LIT
2. Thermostat set too low2. Turn temp, dial to desired temperature
3. No gas3. Check with gas utility company
4. Dirt in the gas lines4. Notify utility-install trap in gas line
5. Pilot line clogged5. Clean, locate source and correct
6. Main burner line clogged6. Clean, locate source and correct
7. Non-functioning cjas control valve/thermostat7. Replace gas control valve/thermostat
8. Heater installed in a confined area8. Provide fresh air ventilation
9. Flue Damper not functioning9. Cycle power to the water heater off and on. If problem persists replace the flue damper
Pilot will not light or remain lit1. Non-functioning PilotUgniter-Flame Sensor1. See Status Light Code Troubleshooting Table section
2. The thermal switch tripped2. See Pilot Light Troubleshooting Flowchart section
3. Igniter wire connection loose3. Seat connector firmly in socket
4. Air in gas line4. Bleed the air from the gas line
5. Low gas pressure5. Check with gas utility company
6. No gas6. Check with gas utility company
7. Dirt in gas lines7. Notify utility-install dirt trap in gas line
8. Cold drafts8. Locate source and correct
9. Thermostat ECO switch open9. Replace thermostat
10. Pilot line or orifice clogged10. Clean, locate source and correct
11. Air for combustion obstructed11. See maintenance section for inspection and cleaning of flame trap.
12. FV Senor Lockout12. Contact a qualified person to reset the sensor
13. Flue Damper not functioning13. Cycle power to the water heater off and on. If problem persists replace the flue damper
Burner flame yellow- lazy1. Insufficient secondary air1. Provide ventilation to water heater
2. Low gas pressure2. Check with gas utility company
3. Flue clogged3. Clean, locate source and correct
4. Flue damper partially open4. Cycle gas control valve/thermostat OFF then ON. If problem persists replace damper
5. Main burner line clogged5. Clean, locate source and correct
6. Heater installed in a confined area6. Proper fresh air ventilation
7. Obstruction in main burner orifice7. Clean or replace orifice
High operation costs1. Thermostat set too high1. Set temperature dial to lower setting
2. Sediment or lime in tank2. Drain/flush-provide water treatment if needed
3. Water heater too small for job3. Install adequate heater
4. Wtong piping connections4. Correct piping-dip tube must be in cold inlet
5. Leaking faucets5. Repair faucets
6. Gas leaks6. Check with utility-repair at once
7. Wasted hot water7. Advise customer
8. Long runs of exposed piping8. Insulate piping
9. Hot water piping in exposed wall9. Insulate piping
10. Flue Damper seal not functioning10. Replace the flue damper
Insufficient hot water1. Thermostat set too low1. Turn temperature dial to desired setting
2. Sediment or lime in tank2. Drain/flush-provide water treatment if needed
3. Water heater too small3. Install adequate heater
4. Wtong piping connections4. Correct piping-dip tube must be in cold inlet
5. Leaking faucets5. Repair faucets
6. Wasted hot water6. Advise customer
7. Long runs of exposed piping7. Insulate piping
8. Hot water piping in outside wall8. Insulate piping
9. Low gas pressure9. Check with gas utility company
Slow hot water recovery1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way. flue baffle, and burner
2. Flue clogged2. Clean flue, locate source and correct
3. Low gas pressure3. Check with gas utility company
4. Improper calibration4. Replace thermostat
5. Water heater too small5. Install adequate heater
6. Wtong piping connections6. Correct piping-dip tube must be in cold inlet
7. Wasted hot water7. Advise customer
Drip from relief valve1. Excessive water pressure1. Use a pressure reducing valve and relief valve
2. Heater stacking2. Lower the thermostat setting
3. Closed water system3. See "Closed System/Thermal Expansion"
Thermostat fails to shut-off1. Thermostat not functioning properly1. Replace thermostat
2. Improper calibration2. Replace thermostat
Combustion odors1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way. flue baffle, and burner
2. Flue clogged2. Clean, locate source and correct
3. Heater installed in a confined area3. Provide fresh air ventilation
Smoking and carbon formation (sooting)1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way. flue baffle, burner
2. Low gas pressure2. Check with gas utility company
3. Flue clogged3. Clean, locate source and correct
4. Thermostat not functioning properly4. Replace thermostat
5. Heater installed in a confined area5. Provide fresh air ventilation
6. Burner flame yellow-lazy6. See “Burner Flame Yellow-Lazy"
Condensation1. Temperature setting too low1. Increase the temperature setting
Burner flame floats and lifts off ports1. Orifice too large1. Replace with correct orifice
2. High gas pressure2. Check with gas utility company
3. Flue clogged3. Clean flue and bumer-locate source and correct
4. Cold drafts4. Locate source and correct
Burner flame too high1. Orifice too large1. Replace with correct orifice
Flame burns at orifice1. Thermostat not functioning properly1. Replace thermostat
2. Low gas pressure2. Check with gas utility company
Pilot flame too small1. Pilot line or orifice clogged1. Clean, locate source and correct
2. Low gas pressure2. Check with gas utility company
Smelly water1. Sulfides in the water1. Replace the anode with a special anode

Whirlpool Gas Water Heater High Efficiency Atmospheric Vent troubleshooting

PROBLEMPOSSIBLE CAUSE(S)CORRECTIVE ACTION
NO HOT WATER1. Transformer unplugged.1. Plug transformer back into 120 VAC. outlet.
2. No power at outlet.2. Repair service to outlet.
3. Thermostat defective.3. Replace Thermostat.
4. Air Intake Chamber Fan defective.4. Replace Air Intake Chamber Fan Assembly.
5. Pressure Switch defective.5. Replace Pressure Switch Assembly.
6. Gas Valve/Thermostat Switch in “OFF POSITION".6. Move Gas Valve/Thermostat Switch to “ON POSI- TION".
INSUFFICIENT HOT WATER1. Thermostat set too low.1. Set temperature control higher.
2. Thermostat defective.2. Replace thermostat.
3. Heater undersized.3. Reduce hot water use.
4. Low gas pressure.4. Contact dealer.
5. Incoming water is unusually cold.5. Allow more time for heater to reheat.
6. Leaking hot water pipes or fixtures.6. Have plumber check and repair leaks.
SLOW HOT WATER RECOVERY1. Low gas pressure.1. Check with gas utility company.
2. Improper calibration.2. Replace thermostat.
3. Thermostat set too low.3. Turn temperature dial to desired setting.
4. Water heater too small.4. Install adequate heater.
5. Wrong piping connections.5. Correct piping-dip tube must be in cold inlet.
6. Wasted hot water.6. Advise customer.
WATER TOO HOT1. Thermostat set too high.1. Set temperature control lower.
see. “WATER TEMPERATURE REGULATION', section.
BURNER FLAME YELLOW-LAZY1. Dirt in burner ports.1. Turn off heater and gas, clean burner head.
2. Combustion air path restricted.2. Check intake venting arrangements for obstruc- tions.
3. Not enough dilution air for proper com- bustion.3. Check intake venting arrangements for obsruc- tions.
4. Main burner line clogged.4. Clean, locate source and correct.
5. Obstruction in main burner orifice.5. Clean or replace orifice.
6. Burner flame too high.6. Check orifice and replace if necessary.
7. Flame burns at orifice/thermostat not functioning properly.7. Replace thermostat
8. Low gas pressure.8. Check with gas utility company.
BURNER FLAME FLOATS AND LIFTS OFF PORTS1. Orifice too large/wrong orifice.1. Replace with correct-orifice.
2. High gas pressure.2. Check with gas utility company.
3. Water heater flue or vent system blocked.3. Clean flue and burner-locate source and correct.
4. Cold drafts.4. Locate source and correct.
COMBUSTION ODORS1. Insufficient secondary air.1. Provide ventilation to water heater. Check flue.
2. Water heater flue or vent system blocked.2. Clean, locate source and correct.
3. Heater installed in a confined area.3. Provide fresh air ventilation.
WATER LEAKS1. Improperly sealed, hot or cold supply connections, relief valve, drain valve or thermostat threads.1. Tighten threaded connections.
2. Leakage from other appliances or water lines.2. Inspect other appliances near water heater.
3. Condensation of flue products.3. See “OPERATIONAL CONDITIONS", section.
4. Excessive water pressure.4. Use a pressure reducing valve and relief valve.
5. Heater stacking.5. Lower the thermostat setting.
6. Closed water system.6. See “Closed System/Thermal Expansion"
LEAKING T&P1. Thermal expansion in closed water system.1. Install thermal expansion tank (DO NOT plug T&P valve).
2. Improperly seated valve.2. Check relief valve for proper operation (DO NOT plug T&P valve.
HOT WATER ODORS1. High sulfate or mineral content in water supply.1. Drain and flushing heater thoroughly then refill.
2. Bacteria in water supply.2. Chlorinate water supply.
WATER HEATER SOUNDS SIZZLING-RUMBLING1. Condensation dripping on burner.1. See “START UP CONDITIONS", section.
2. Sediment at bottom of heater tank.2. See “DRAINING AND FLUSHING", section.
SMOKING AND CARBON FORMATION (SOOTING)1. Insufficient secondary air.1. Provide ventilation to water heater. Check flue way. flue baffle, burner.
2. Low gas pressure.2. Check with gas utility company.
3. Water heater flue or vent system blocked.3. Clean, locate source and correct.
4. Thermostat not functioning properly.4. Replace thermostat.
5. Heater installed in a confined area.5. Provide fresh air ventilation.
6. Burner flame yellow-lazy.6. See “Burner Flame Yellow-Lazy’.
HIGH OPERATION COSTS1. Thermostat set too high.1. Set temperature to lower setting.
2. Sediment or lime in tank.2. Drain/flush-provide water treatment if needed.
3. Water heater too small for job.3. Install adequate heater.
4. Wrong piping connections.4. Correct piping-dip tube must be in cold inlet.
5. Leaking faucets.5. Repair faucets.
6. Gas leaks.6. Check with utility-repair at once.
7. Wasted hot water.7. Advise customer.
8. Long runs of exposed piping.8. Insulate piping.
9. Hot water piping in exposea wall.9. Insulate piping.
THERMOSTAT FAILS TO SHUT-OFF1. Thermostat not functioning properly.1. Replace thermostat.
2. Improper calibration.2. Replace thermostat.
DRIP FROM RELIEF VALVE1. Excessive water pressure.1. Use a pressure reducing valve and relief valve.
2. Heater stacking.2. Lower the thermostat setting.
3. Closed water system.3. See “CLOSED SYSTEM/THERMAL EXPAN- SION", section.

Whirlpool Ultra Low Nox gas water heater troubleshooting

PROBLEMPOSSIBLE CAUSE(S)CORRECTIVE ACTION
BURNER WILL NOT IGNITE1. Pilot not lit1. Light pilot
2. Thermostat set too low2. Turn temp, dial to desired temperature
3. No gas3. Check with gas utility company
4. Dirt in the gas lines4. Notify utility-install trap in gas line
5. Pilot line clogged5. Clean, locate source and correct
6. Main bumer line clogged6. Clean, locate source and correct
7. Non-functioning thermopile7. Replace thermopile
8. Non-functioning thermostat8. Replace thermostat
9. Heater installed in a confined area9. Provide fresh air ventilation
SMELLY WATER1. Sulfides in the water1. Replace the anode with a special anode
BURNER FLAME YELLOW- LAZY1. Insufficient secondary air1. Provide ventilation to water heater
2. Low gas pressure2. Check with gas utility company
3. Flue clogged3. Clean, locate source and correct
4. Main bumer line clogged4. Clean, locate source and correct
5. Heater installed in a confined area5. Proper fresh air ventilation
6. Obstruction in main burner orifice6. Clean or replace orifice
PILOT WILL NOT LIGHT OR REMAIN LIT 1. Non-functioning igniter1. Replace igniter pilot assembly
2. Thermopile connection loose2. Seat connector firmly in socket
3. Air in gas line3. Bleed the air from the gas line
4. Proper Lighting Sequence not followed. Gas Control / Temperature Knob was not held in for sufficient time.4. Do not attempt to relight if the red light is lit and the pilot flame is not visible through the view port. Wait until the red light is no longer lit, then follow lighting instructions on the water heater.
5. Low gas pressure5. Check with gas utility company
6. No gas6. Check with gas utility company
7. Dirt in gas lines7. Notify utility-install dirt trap in gas line
8. Cold drafts8. Locate source and correct
9. ECO switch open9. Replace gas control valve/thermostat
10. Pilot line or orifice clogged10. Clean, locate source and correct
11. Non-functioning thermopile11. Replace thermopile
12. Air for combustion obstructed12. See maintenance section for inspection and cleaning of flame trap
13. Flammable vapors incident, Flame Guard™ function utilized13. Replace water heater, eliminate flammable vapors source. Reference the number on the cover of this manual for service information.
HIGH OPERATION COSTS1. Thermostat set too high1. Set temperature dial to lower setting
2. Sediment or lime in tank2. Drain/flush-provide water treatment if needed
3. Water heater too small for job3. Install adequate heater
4. Wrong piping connections4. Correct piping-dip tube must be in cold inlet
5. Leaking faucets5. Repair faucets
6. Gas leaks6. Check with utility-repair at once
7. Wasted hot water7. Advise customer
8. Long runs of exposed piping8. Insulate piping
9. Hot water piping in exposed wall9. Insulate piping
INSUFFICIENT HOT WATER1. Thermostat set too low1. Turn temperature dial to desired setting
2. Sediment or lime in tank2. Drain/flush-provide water treatment if needed
3. Water heater too small3. Install adequate heater
4. Wrong piping connections4. Correct piping-dip tube must be in cold inlet
5. Leaking faucets5. Repair faucets
6. Wasted hot water6. Advise customer
7. Long runs of exposed piping7. Insulate piping
8. Hot water piping in outside wall8. Insulate piping
9. Low gas pressure9. Check with gas utility company
SLOW HOT WATER RECOVERY1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way, flue baffle, and burner
2. Flue clogged2. Clean flue, locate source and correct
3. Low gas pressure3. Check with gas utility company
4. Improper calibration4. Replace thermostat
5. Thermostat set too low5. Turn temperature dial to desired setting
6. Water heater too small6. Install adequate heater
7. Wrong piping connections7. Correct piping-dip tube must be in cold inlet
8. Wasted hot water8. Advise customer
DRIP FROM RELIEF VALVE1. Excessive water pressure1. Use a pressure reducing valve and relief valve
2. Heater stacking2. Lower the thermostat setting
3. Closed water system3. See ‘Closed System/Thermal Expansion”
THERMOSTAT FAILS TO SHUT-OFF1. Thermostat not functioning properly1. Replace thermostat
2. Improper calibration2. Replace thermostat
COMBUSTION ODORS1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way, flue baffle, and burner
2. Flue clogged2. Clean, locate source and correct
3. Heater installed in a confined area3. Provide fresh air ventilation
SMOKING AND CARBON FORMATION (SOOTING)1. Insufficient secondary air1. Provide ventilation to water heater. Check flue way, flue baffle, burner
2. Low gas pressure2. Check with gas utility company
3. Flue clogged3. Clean, locate source and correct
4. Thermostat not functioning properly4. Replace thermostat
5. Heater installed in a confined area5. Provide fresh air ventilation
6. Burner flame yellow-lazy6. See “Burner Flame Yellow-Lazy"
CONDENSATION1. Temperature setting too low1. Increase the temperature setting
BURNER FLAME FLOATS AND LIFTS OFF PORTS1. Orifice too large1. Replace with correct orifice
2. High gas pressure2. Check with gas utility company
3. Flue clogged3. Clean flue and burner-locate source and correct
4. Cold drafts4. Locate source and correct
BURNER FLAME TOO HIGH1. Orifice too large1. Replace with correct orifice
PILOT FLAME TOO SMALL1. Pilot line or orifice clogged1. Clean, locate source and correct
2. Low gas pressure2. Check with gas utility company

Error codes and troubleshooting