Tag: water-heater

All the articles with the tag "water-heater".

• State Water Heater E57 Error Code - Causes & Fix

  31 May, 2026

  E57 is not documented in available State manuals. Verify your model number and check the control board for correct code display.

• State Water Heater E55 Error Code - Causes & Fix

  31 May, 2026

  E55 means leak or moisture detected near your State water heater. Check for water leaks around the tank and connections first.

• State Water Heater E51 Error Code - Causes & Fix

  31 May, 2026

  E51 means a temperature sensor fault. The most common fix is replacing the failed thermistor after checking its resistance.

• State Water Heater E49 Error Code - Causes & Fix

  31 May, 2026

  E49 is a model-specific fault code on State water heaters. Find your exact model number and check the manual for the component list.

• State Water Heater E42 Error Code - Causes & Fix

  31 May, 2026

  E42 on State water heaters is not documented in manufacturer materials. Verify your exact model number and consult the manual.

• State Water Heater E29 Error Code - Causes & Fix

  31 May, 2026

  E29 means condensate drainage problem on State condensing tankless water heaters. Most common fix: clear the blocked condensate drain line.

• State Water Heater E28 Error Code - Causes & Fix

  31 May, 2026

  E28 means the gas valve lost 120 VAC power. Most common fix: check wiring and test all safety switches for open circuits.

• State Water Heater E23 Error Code - Causes & Fix

  31 May, 2026

  E23 on a State water heater is not documented in standard manuals. Check your model number and inspect for ignition or airflow issues.

• State Water Heater E15 Error Code - Causes & Fix

  31 May, 2026

  E15 on State tankless water heaters signals a venting or airflow fault blocking combustion. Most often a blocked air intake screen.

• State Water Heater E10 Error Code - Causes & Fix

  31 May, 2026

  E10 on a State hybrid heat-pump water heater means a temperature sensor circuit fault. Check sensor wiring and test the thermistor.

• State Water Heater E09 Error Code - Causes & Fix

  31 May, 2026

  E09 on State water heaters is model-specific. Find your exact model number and check the diagnostic label for the fault definition.

• Whirlpool Water Heater E11 Error - Causes & Fix

  31 May, 2026

  E11 on a Whirlpool water heater is not officially documented in water heater manuals. Run diagnostics and check the model's code table.

• Whirlpool E08 Error Code - Causes & Fix

  31 May, 2026

  E08 means Energy Smart Module failure on Whirlpool hybrid electric water heaters. Most common fix: replace the ESM module.

• Whirlpool Water Heater E07 Error - Causes & Fix

  31 May, 2026

  E07 means lower thermistor sensor failure. Check wiring at the electronic thermostat first, then replace the lower sensor if connections are good.

• Whirlpool Water Heater E03 Error Code - Causes & Fix

  31 May, 2026

  E03 means upper thermistor sensor failure in the Electronic Thermostat assembly. Replace the ET to clear the code on most models.

• Whirlpool E02 Error Code - Causes & Fix

  31 May, 2026

  E02 means your Whirlpool water heater exceeded its high-limit safety temperature. Turn off power, press reset, restore power. If it returns, call a tech.

• GE Water Heater F81 Error Code - Causes & Fix

  31 May, 2026

  F81 on a GE GeoSpring water heater means the leak sensor battery is low. Replace the battery to clear the fault and restore normal operation.

• GE Water Heater F78 Error - Causes & Fix

  31 May, 2026

  F78 on a GE water heater is not documented. Verify your model number, as this code may be misread or apply to another appliance.

• GE Water Heater F75 Error Code - Causes & Fix

  31 May, 2026

  F75 = dry tank fault on GE GeoSpring heat pump water heaters. The tank is empty or not properly filled. Confirm water supply is on and tank is full.

• GE Water Heater F62 Error Code - Causes & Fix

  31 May, 2026

  F62 means incoming water is too hot. Reduce any preheating of inlet water or check for hot/cold cross-connection in plumbing.

• GE Water Heater F74 Error Code - Causes & Fix

  31 May, 2026

  F74 on a GE GeoSpring means the air filter is dirty. Clean or replace the filter. If the code returns, a refrigerant leak is likely.

• GE Water Heater F61 Error Code - Causes & Fix

  31 May, 2026

  F61 means tank water temperature is too hot. In most cases it self-corrects. If it persists, check setpoint and inlet conditions.

• A.O. Smith Water Heater E4 Error Code - Causes & Fix

  31 May, 2026

  E4 (or E04) on A.O. Smith electric tankless heaters means moisture or a leak detected inside the unit. Shut off power and water, find the leak, dry the cabinet, then test.

• A.O. Smith E2 Error Code - Causes & Fix

  31 May, 2026

  E2 means water temperature exceeded the high limit. Press the reset button on the thermostat. If the code returns, replace the control.