## Why Does My Hot Water Dispenser Sputter?
A sputtering hot water dispenser can be a frustrating and inconvenient problem. Fortunately, there are several common causes that can be easily diagnosed and fixed.
### Causes of a Sputtering Hot Water Dispenser
1. Air in the System
Air trapped in the water system can cause the dispenser to sputter. This can occur after a new installation, or if the dispenser has not been used for an extended period of time.
2. Clogged Filter
A clogged filter can restrict water flow and cause the dispenser to sputter. Filters should be replaced every 6-12 months to ensure optimal performance.
3. Faulty Check Valve
A faulty check valve can allow water to flow back into the tank, causing sputtering. Check valves should be inspected and replaced if necessary.
4. Low Water Pressure
Low water pressure can prevent the dispenser from delivering a consistent stream of hot water. Check the water pressure at the source and adjust the pressure regulator if necessary.
5. Defective Heating Element
A defective heating element may not be able to heat the water properly, resulting in sputtering. Heating elements should be inspected and replaced if they are damaged or malfunctioning.
### Troubleshooting a Sputtering Hot Water Dispenser
1. Check for Air in the System
Turn off the hot water valve and open the hot water faucet nearest to the dispenser.
Run the faucet for a few minutes to purge any trapped air from the system.
Close the faucet and turn on the hot water valve.
2. Replace the Filter
Locate the filter and remove it from the dispenser.
Insert a new filter into the dispenser and tighten it securely.
3. Inspect the Check Valve
Turn off the water supply to the dispenser.
Disconnect the water line from the check valve.
Inspect the check valve for any damage or debris.
If the check valve is damaged, replace it with a new one.
4. Check Water Pressure
Attach a water pressure gauge to the cold water supply line.
Turn on the cold water faucet and observe the water pressure reading.
If the water pressure is below 40 psi, adjust the pressure regulator to increase the pressure.
5. Inspect the Heating Element
Turn off the power to the dispenser.
Remove the screws holding the heating element in place.
Inspect the heating element for any damage or corrosion.
If the heating element is damaged, replace it with a new one.
### Additional Tips
Regularly flush the hot water system to remove any sediment or debris.
Use a descaler to prevent mineral buildup in the dispenser.
If you are unable to diagnose or fix the problem yourself, contact a qualified plumber for assistance.
### Conclusion
A sputtering hot water dispenser can be a common problem, but it is usually easy to diagnose and fix. By following these troubleshooting steps, you can quickly restore your dispenser to proper working order and enjoy a steady stream of hot water.