Why does my tankless water heater keep tripping the breaker?

Breaker Breaker There are three possible explanations for a breaker being tripped by a hot water heater: water dripping on the electrical lines, a problem with the unit’s thermostat or a problem with the breaker. A malfunctioning thermostat is the most common cause.

How do I reset my Rinnai?

You simply press and hold the Connect button on your module, until you see the LED blinking White. Release it afterward. The procedure will restore the module to the factory setting of your unit.

How do I find my Rinnai error code?

Contact your local professional water heater expert today! If your water heater is connected to MC-91 or MCC-91, you can easily find the most recent error codes. Press and hold the ON/OFF button for two seconds and press the arrow “UP”, the last nine Rinnai error codes will appear and flash one after the other.

Why is my Rinnai tankless water heater beeping?

A water heater may sound a beep to warn that there is a water leak. Beeping may also signal a gas leak. Low Fuel. The green Priority light will glow indicating that this controller is controlling the temperature and that the Rinnai Tankless Water Heater is ready to supply hot water.

Does a tankless water heater need to be on a GFCI?

In a garage, every 120, 15 and 20 Amp receptacle outlet needs to be GFCI protected, so if you have a tankless water heater in the garage, it should be protected as well.

Where is the reset button on a Rinnai water heater?

The water heater reset button is the red button located on the water heater itself (just above the thermostat). Some water heaters may have two reset buttons-one for each thermostat. To access the reset button, you may have to remove the metal plate covering the thermostat that’s held in place by screws.

Why is my Rinnai water heater not working?

Check the pump wiring, look for any loose, damaged, or broken connections, and replace if necessary. Drain the water tank and check the water inlet filter for any blockages. If it is clogged, clean it or replace it. Flush and descale the heat exchanger.

Where is Rinnai reset button?

How do you clear 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.

Is there a reset button on a Rinnai tankless water heater?

How do you reset a Rinnai tankless water heater after a power outage?

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.