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Residential Electric Troubleshooting Guide
Problem Possible Cause(s) Corrective Action
No Hot Water
  1. Upper thermostat
  2. Elements
  3. No power to heater
  4. High Temperature Limit Switch open
  1. Replace thermostat
  2. Replace element
  3. Turn on electrical switch. Check for blown fuses or tripped breaker
  4. Reset. Check for source of trouble and correct
Insufficient Hot Water
  1. Thermostats
  2. Elements
  3. Thermostats set too low
  4. Sediment or lime in tank
  5. Heater too small for job
  1. Replace thermostats
  2. Replace elements
  3. Set thermostats to desired temperature
  4. Drain--Determine if water treatment is needed
  5. See Sizing Guides
Slow Hot Water Recovery
  1. Elements
  1. Replace elements
Drip From Relief Valve
  1. Excessive water pressure
  1. Use Pressure Reducing Valve and Pressure Relief Valve
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