Fluctuations between hot and cold temperatures indicate that only the upper water heater circuit is working. This thermostat supplies power to the upper heating element, and diverts power to the lower element once the ideal temperature is reached in the water at the top of the tank.
How do you flush sediment out of a water heater?
How to Flush Sediment Out of a Water Heater
- Turn the Water Heater Off. …
- Turn the Cold Water Valve Off. …
- Let the water cool. …
- Attach a drain or garden hose to the drain valve on the side of the tank. …
- Place the end of the hose in a bucket or drain. …
- Turn on a faucet (or two) …
- Start draining the tank by turning on the drain valve.
How do I stop my shower from going hot and cold?
Shower Water Temperature Keeps Changing
- Check Your Pressure-Balancing Valve.
- Check Your Water Heater.
- Replace the Shower Cartridge.
- Descale the Water Heater and Check for Blockages.
- Why Your Water Temperature Keeps Fluctuating.
- Conclusion.
