How do I reset my Rinnai tankless heater?
Turn off all hot water faucets/taps. Press On/Off button twice. Turn hot water back on and test. You may have to try this a couple times to reset the system.
Why am I not getting hot water from my Rinnai tankless water heater?
Because tankless units only heat water as it’s needed, running too many hot water appliances at the same time could mean the unit just can’t keep up.On the other hand, your no hot water problem could be cause by a bigger issue such as: Plugged heat exchanger (due to hard water) A blocked vent/air intake.
How do you troubleshoot Rinnai?
How to Fix: Confirm no loose, damaged, or broken connections on the leak detector. Check heat exchanger and all piping for leaks. If no leaks found, wipe out any water inside cabinet, dry off leak sensor, and restart unit. If error code reappears, unplug sensor and fire up the water heater.
Why does my tankless water heater go cold?
Another problem that tankless water heaters can run into is that of a cold water sandwicha plumbing term given to sudden temperature fluctuations, when your tankless water heater produces hot and cold water intermittently. This can be caused by: An improperly sized gas line, as mentioned above.
The red button on the water heater is where the reset button is located. There are two buttons for each thermostat in some water heaters. The metal plate that holds the thermostat in place may have to be removed to access the reset button.
How do you clear error codes on Rinnai?
After flushing water heater, the procedure to reset LC codes: Push the two switches (A and B) on PC Board at the same time for five seconds. Water heater will return to normal operation and LC# count returns to 0. This hard reset procedure is not in owners/installation manual or tech sheet.
Why is my electric tankless water heater not working?
First, reset any tripped circuit breaker, and replace any blown fuse. Next, check if power is being supplied to the electric water heating element thermostat.When the water’s not hot enough, the problem can be an undersized water heater, crossed hot and cold connections, or a faulty heating element or thermostat.
Why does my tankless water heater not heat?
The Air Supply or Exhaust Is Blocked
At times, your exhaust or air supply might get blocked, which can cause your tankless water heater to stop heating. Many water heaters will automatically shut off as a way to protect the appliance and help prevent other safety hazards that could result.
Why my hot water is not working?
A water heater that produces no hot water may not be getting power, may have a tripped limit switch, or may have one or more failed heating elements. First, check the water heater’s circuit breaker in the service panel to make sure it hasn’t tripped. If the breaker has tripped, switch it off, then switch it back on.
How do you fix error 11 on Rinnai tankless water heater?
Rinnai fault code 11 No ignition. Check to make sure the gas is turned on at the water heater, gas meter or tank. Ensure the igniter is operational. If gas is being supplied to the tankless water heater and the igniter is working, call for an evaluation by a qualified plumber.
Why does my Rinnai water heater go cold?
Your tankless water heater will feel cold to the touch when the heater unit and pumps are in the rest state and not heating water. There’s nothing to worry about. As long as everything is working properly (e.g. you have hot water on demand), there is no cause for concern.
How long does a Rinnai tankless water heater last?
to 20 years
The life expectancy (or useful lifespan) of a Rinnai tankless water heater is up to 20 years. Actual life is impacted by water quality, usage and proper maintenance. For comparison, a tankless water heater lasts about twice as long as a tank water heater, making them a better value in the long run.
When you press the “Priority button,” the green light will glow, indicating that the controller controls the temperature and that a water heater is ready. Rinnai water heaters work in the temperature range from 98 F to 140 F, while they come with the factory setting of approximately 120-125 F.
To prevent accidental resets, tankless water heaters are designed to prevent accidental resets, so you are probably going to have to hold the button down to get the reset to trigger.
How do I stop my Rinnai tankless water heater beeping?
If you’ve overloaded the system, but it continues to operate, the only way to improve the hot water supply is to reduce the demand. Turn off faucets, for example. If the system shuts down because of the overloading, it may reset itself once you reduce hot water demand. If not, you’ll need to do a manual reset.
How do I reset my electric tankless water heater?
Somewhere on your electric water heater, you’ll find a reset button. It’s usually red and often located near the thermostat. It may also be hidden behind a removable metal panel on the unitand then behind some insulation. Once you find the button, push and release it.
Why is my Rinnai beeping 12?
If you’re getting Rinnai error code 12 on your hot water unit, it indicates that a flame failure has occurred on the system. In this instance, your hot water unit has not recognised that there is a flame in the burner box.Incorrect gas pressure supply your hot water unit.
How do I fix error code 12 on Rinnai?
Rinnai Error Code 12 Troubleshooting
- Check gas is turned on at the gas metre or cylinder.
- Check gas is turned on at the water heater.
- Check there are no obstructions to the flue outlet.
Where is the fuse on an electric water heater?
The heater is usually fused in the main electrical panel but some electric water heaters may be fed from a separate fuse or circuit breaker box.
How do you check a Rinnai tankless water heater Ignitor?
Verify igniter is working. Turn off gas valve feeding the appliance. Unplug igniter wire; hold the igniter wire with an insulated pair of pliers about a 1/4″ from a piece of metal. Cycle the unit to ensure you see a spark when unit is cycling.
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