Water Heaters - Not Enough Water or No Hot Water

If the water heater is not producing enough or any hot water, check the following possible causes and solutions:

Possible CausesPossible Solutions
Water temperature may be set too low
  • Increase the water temperature setpoint.
  • If the product has an integrated mixing valve, turn the capacity setting to "High" or "X-High" to increase available hot water capacity.
Cold water inlet temperature may be colder during the winter month
  • This is normal. The colder inlet water takes longer to heat.
  • Increase the water temperature setpoint.
  • If the product has an integrated mixing valve, increase the hot water capacity.
Leaking or open hot water faucets
  • Make sure all faucets are closed.
Long runs of exposed pipe, or hot water piping on outside wall
  • Insulate piping.
Dip tube damaged
  • Contact your local installer, plumbing contractor, or previously agreed upon service agency.
A fuse is blown, circuit breaker tripped, or electric service to your home may be interrupted
  • Replace fuse or reset circuit breaker.
  • Contact the local electric utility.
Inadequate wiring
Manual reset high limit (ECO)
Water Connections to unit reversed
  • Correct piping connections.
Recirculating System Interference (if installed)
  • Check flow rate is not set too high.
  • Insulate piping.

Reference the Owners's Manual for details. Download a copy of the Owner's Manual