Signs your tankless water heater needs to be repaired
Your water heater likely needs a repair if it:
- Low water pressure. If you see low hot water pressure coming from multiple fixtures, the problem could be caused by a clogged inlet filter or mineral deposits (in hard water) building up inside your system.
- Water leaking from your unit. Water pooling around or dripping from your unit could be caused by a bad pipe connection or improper venting.
- No hot water. If you tried troubleshooting your unit (see the “DIY Tips” tab) and still aren’t getting any hot water, the problem could be a bad heating element.
- Fluctuating water temperatures. If your water is hot one minute and cold the next, that could be a sign of an electric problem inside your unit.
Not getting any hot water?
Try troubleshooting these common issues before calling a plumber:
- Does your tankless unit have electricity? Both gas and electric tankless water heaters need electricity to run. Double check that your unit is connected to a 120-volt outlet. Also, check the unit’s breaker on your home’s electrical panel. If it tripped, you’ll need to flip the switch back to “ON”. If it keeps tripping, you should call a professional.
- Is the gas supply valve open? If the handle/knob on the gas line leading to your unit isn’t turned to the “ON” position (parallel to the gas line), your unit won’t get the fuel it needs to heat your water.
- Is the exhaust vent clear? If your gas tankless water heater’s exhaust vent (the pipe that expels toxins) is blocked by something, your unit can’t properly heat your home’s water.
