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Instantaneous Hot Water Maintenance

The pilot light won’t ignite
If your water heater's pilot light won't light, keep in mind that instant systems require a moderate to high water flow to ignite the pilot light. In this case, run your tap on high for a few minutes and see if this ignites the pilot light.
Irregular hot and cold water
With instantaneous systems, having intermittent hot and cold water is a common issue. A variety of factors can contribute to this, including:
  1. The gas meter's diaphragm could be faulty.
  2. It's possible that your hot water system isn't getting enough gas (which can be caused by an under-sized gas bottle).
  3. It's possible that a faulty showerhead or restrictor is preventing a tap from being registered as a 'hot water' tap.
  4. Low hot water pressure could be a problem for your system.
Lukewarm Water
Another issue that can arise is lukewarm water instead of hot water flowing through the pipes. A faulty thermostat may be to blame, or the diaphragm may need to be replaced.
Less Water Production
If your hot water system is producing less water than it should or at a lower water pressure than before, it could be due to one of the following:
  1. The strainer valve on the cold inlet is clogged.
  2. The thermostat is broken or malfunctioning.
The pilot light may be to blame if water is also coming out at a lower pressure. However, keep in mind that instantaneous units deliver hot water at a lower pressure than storage systems.
No hot water at all
Finally, if you do not have any hot water there are a few things you can check before calling us.
  1. Check to see if gas is still flowing to a stovetop or other gas appliance. If it does, the problem isn't with the gas supply; if it doesn't, you've most likely identified the source of the problem. Check your gas valve meter and contact us if there isn't any gas flowing to other appliances.
  2. Double-check that the continuous flow is properly connected to its power source.
  3. If your system has a controller, make sure it's turned on and the temperature is set correctly.