Whirlpool water heater troubleshooting

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