Up to 34% more efficient than a traditional water heater, Rinnai tankless water heaters provide hot water on demand. But despite their efficient, water-saving performance, they’re not immune to the occasional error or malfunction.
On the upside, a simple reset can fix many of the functional problems you might encounter with your Rinnai tankless water heater system.
The only question now is – how do you reset a Rinnai tankless water heater? Here’s how to do it.
- Rinnai tankless water heaters may encounter errors and malfunctions that can be fixed by resetting the system.
- You can reset a Rinnai tankless heater in one of three ways – factory reset, master reset, or power cycle.
- If a reset doesn’t resolve the problem, then it might be necessary to call in a professional.
Before you call someone to repair your Rinnai tankless water heater, you can solve issues by resetting the system. You can follow these instructions if you’re unsure how to do it.
How To Reset a Rinnai Tankless Water Heater
The term ‘reset’ can pertain to several different things. Here’s how to perform the different types of reset on your Rinnai tankless water heater:
1. Factory Reset
This pertains to a reset function that restores your Rinnai tankless water heater to its default factory settings.
After a factory reset will be like operating a Rinnai system fresh out of the box. To perform a factory reset, follow these steps:
- Press and hold the ‘Connect’ button on the module until the LED blinks white (for Control-R 1.0) or red and white (for Control-R 2.0).
- Release the button.
- If you’re using the 1.0 version, this should be enough to complete the factory reset process.
- For Control-R 2.0 users, you will have to quickly press the Connect button three times after it starts blinking.
Remember that if you change the network settings on your Rinnai tankless water heater, you must perform a factory reset to get the unit working properly.
2. Master Reset
A master reset works to reboot the system’s hardware. This option is slightly more complicated than the factory reset and requires that you tinker with the tankless water heater’s internal panel. Here’s how to do it:
- Open the unit to reveal the inner panel.
- Locate the buttons labeled ‘A’ and ‘B.’
- Press and hold the A and B buttons simultaneously until the letter ‘P’ appears.
- Release the buttons.
- Press both buttons simultaneously again until the letters ‘PLC’ appear.
- The unit should power off after PLC appears on display.
- Manually turn on the unit by pressing and holding the power button.
A master reset requires that you open up your unit and interact with its internal panel. This might void your warranty, depending on its stipulations.
Make sure to read through your manual and the warranty papers to find out whether a master reset is something you can do without violating the warranty’s rules.
3. Power Cycle
To perform a power cycle means rebooting the system. Sometimes, bugs and glitches can get in the way of smooth operations. A power cycle should be enough to restore proper functioning and resolve minor bugs.
Here’s how to power cycle your Rinna tankless water heater:
- Turn off the unit.
- Remove its power cable from the outlet.
- Wait 10-15 seconds.
- Plug the water heater back into the socket.
- Please turn it on.
Conclusion
You should reset your Rinnai tankless water heater to get it working again. So if you’re experiencing performance bugs with your Rinnai system, try these options first.
But if a reset or power cycle doesn’t solve your problem, it might be high time to call a professional.
Have a specialist check out your tankless water heater to find what underlying issues might be causing its performance problems.
Frequently Asked Questions
How Long Is a Rinnai Tankless Water Heater Warranty?
The extent and coverage of Rinnai’s warranty vary from model to model. Their tankless water heating systems offer 1-year coverage on labor, 5 years on parts, and 10-15 years on the heat exchanger.
When Should You Reset a Tankless Water Heater?
Resetting your heater can solve a lot of performance problems. And even if a reset doesn’t fix the issue, it won’t do any harm.
That said, it’s wise to perform a reset on your Rinnai tankless water heater first in case of any functional problems before you try more drastic measures.
