Problem #3: System Overload
Sometimes too much hot water can simply overload the system just like too many tabs may overload your computer. This is usually an easily solvable problem.
When you have multiple faucets running, in an attempt to work harder and provide enough hot water, your system can completely shut down.
To fix this issue, you need to reset the water heater. Give it a few minutes to start running again, and then limit the simultaneous applications to just one at a time.
In most cases this will return your system to normal, however, if the problem persists, consult a professional.
Problem #4: Venting & Combustion Issues
If your tankless water heater is showing an error code that says blocked vents or exhaust, your heater is experiencing a venting or combustion issues.
In order to solve this problem, you need to identify and check all lines to make sure that they are securely connected, in good condition and don’t have any water leaks.
If there is some object blocking the air supply, this issue may appear again. You need to check the intake and exhaust vents both inside and outside your home and make sure that nothing is blocking the venting.
Problem #5: Too Hot or “Flame Failure”
The ideal temperature should be 120-125 degrees. This is the safety temperature recommended for everyone, and you can even lower it further if you have sensitive skin or live with small children.
If you notice that the water is too hot and there is a “flame failure” error code on your tank or if it simply is not firing up properly, most likely the issue is an ignition failure which is related to the gas supply/pressure or gas valve.
If you suspect this issue, do not try to solve this issue on your own, call Super Service Plumbing at (707) 544-6444 today.