How to troubleshoot Rinnai Water heaters using error codes?

Troubleshooting Rinnai water heaters are much easier if they come with the diagnostics system. Units equipped with the remote controller, such as the MC-91-2, will provide the most recent diagnostics information and allow you to react immediately by recognizing the error code and following the troubleshooting guide.

Is it a good idea to buy Rinnai?

Don’t buy Rinnai. Any company that will not assist in troubleshooting their product with a competent individual should not get your business. They have made the conclusion that NOBODY is competent other than their own chosen installers. So be it. Tell ’em to pound sand. There are plenty of other units that are suitable. Name one company that will.

What should the set point be on a Rinnai?

If the home does not have a pressure reducing valve, or if it is defective/set too high, the Rinnai will create this horrible vibration within the exchanger. Installing a proper sized regulator on the cold side prior to the unit is the solution. Typical set point should be 50 psi.

What’s the best way to get Rinnai Tech Serv?

Your best bet is to call Rinnai 800 621-9419 and have tech serv. get you the part number. Model and Ser # will be req’d. Also, with two units it is a good idea to have a cross-over valve/line so you can feed from either one in a pinch.

How to troubleshoot a Rinnai tankless air unit?

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.

Why is the thermal fuse activated on my Rinnai Water Heater?

The thermal fuse has been activated due to the high temperature in the combustion chamber and venting. Ensure that there is no blockage in the vent system (lack of combustion air). Clean or replace the heat exchanger if it is dirty, has the scale buildup, debris burning, or is damaged.

What causes sediment build up in Rinnai Water Heater?

The high concentration of mineral deposits in water is the leading cause of the sediment build-up, especially in the heat exchangers. Rinnai tankless heaters are equipped with the “Scale Control System” that provides limescale and corrosion protection.

Why does my Rinnai Water Heater say Diagnostic Code 10?

Turn the power ON by pressing the ON/OFF button again. Rinnai tankless water heaters can show error code 10 for various reasons. As you can see from the above text, troubleshooting diagnostic code 10 in some instances is not complicated and doesn’t require you to call a plumber.

Why does my Rinnai Water Heater stop heating?

Rinnai Water Heater stops heating – Diagnostic Code 10 on RL94I Condensate is not draining If the condensate trap is full and doesn’t drain, the condensate line becomes clogged, causing you only problems. Blockage in the condensate line will trigger a diagnostic code 10, which will appear on the control panel display or a remote controller.

Is there a charge for a Rinnai tankless water heater?

This means that at no cost to you, we may receive a small commission for made purchases. Since Rinnai water heaters are one of the most advanced tankless water heaters available, we recommend to contact a service technician that’s authorized to work on Rinnai water heaters.

How to get the most recent error code on Rinnai?

To display the most recent error codes press and hold the “On/Off” button for 2 seconds. While holding the “On/ Off” button press the ? button. The last 9 error codes will flash one after the other. To exit this mode press the “On/Off” and ? button as before.

Can a Rinnai Water Heater be used with natural gas?

Rinnai Tankless Water Heaters are only compatible with natural gas or liquid propane for maximum operating efficiency. You will have to extend the gas line to accommodate your Rinnai tankless water heater in most cases. Gas lines are typically ½” to ¾” and will work with a Rinnai system, but 1” is more fitting for a tankless water heater.

Why does my Rinnai tankless water heater get clogged?

As hard water passes through your Rinnai Tankless Water Heater, the heat exchanger may become clogged with limescale. Since the heat exchanger is made of narrow pipes, it can be hazardous if it becomes clogged.

How long does a Rinnai tankless water heater last?

If you have a Rinnai tankless water heater, kudos to you, you have made one of the wisest investments of your life. You should expect dependable performance and unlimited hot water from the unit for more than 20 years.

Why does my Rinnai hot water heater vibrate?

Or wasps or insects. It doesn’t take much to go cause a vibration. My new Rinnai R75Lsi also has extreme vibration at high water flow. It does not vibrate until high flow and high flame, typical of a shower or washing machine fill cycle.

When to contact Jim’s plumbing for a Rinnai problem?

This means that our plumbers will arrive on time, be well presented and complete the work to the highest quality. Here at Jim’s Plumbing, we specialise in Rinnai tankless code 79 fixes. That is why we recommend that you contact one of our local plumbers when the issue arises. If you wish to troubleshoot the issue yourself, you can check:

How to contact the Rinnai customer care team?

Our FAQ or Product Facts Section may be able to quickly answer your question. If not, please send us a message so we can help you. Send us a message by filling out the form below or call our Customer Care team at 1-800-621-9419. We are available Monday through Friday, 8 a.m. to 8 p.m. EST.

Where can I send a message to Rinnai?

Send us a message by filling out the form below or call our Customer Care team at 1-800-621-9419. We are available Monday through Friday, 8 a.m. to 8 p.m. EST.

Why does my Rinnai 16 turn on hot water?

We have the rinnai 16 system and for some reason it keep changing ing the set temperature from 48 to 19 when you turn the hot water on. We have checked the gas and box and the power point is working. We have turned it off and left it for an hour but that didn’t help. What do you think the issue may be?

Are there any issues with the Rinnai split system?

Having issues with your Rinnai AC? You may have an issue with the AC filter, error codes, the control panel, the remote, or the basic operation of the unit. If problems or errors occur you can troubleshoot the unit using the charts and information below.

What’s the water pressure on the Rinnai Infinity 16?

Once installed you can set the precise temperature the unit will produce. We are very happy with our Infinity 16 however just recently the water pressure has halved compared to a week ago. Heat is fine just lacks pressure. It’s probably the pressure from your front tap.

Is the Rinnai 16 a good hot water system?

We have had the Rinnai 16 for a number of years, has been ok but a little temperamental with water fluctuating in the taps. Taps can only run on hot or cold alone, otherwise as soon as the temperature is balanced the hot water will turn off.

Why is my Rinnai Infinity 16 not working?

The unit, just after 12 months, started to fail to ignite. Turned the hot water on and off for half an hour or so before it worked. It has stopped again, several times, when not run for a day or two.. Its now stopped again and I can’t get it to work. Can smell the gas turning on but its not igniting. Cold weather and absents seems to upset it.

Why is my Rinnai hot water not working?

Your hot water is suddenly cold and the thought of having a shower now fills you with dread. Prior to booking a service call with Pure plumbing, here are a few Rinnai specific troubleshooting hints tips to go through before you call our hot water plumbers. My Rinnai Hot Water System has no hot water?

How often should I Have my Rinnai Water Heater serviced?

There are two types of periodic maintenance that your service technician should perform to keep your Rinnai tankless water heater in top shape. It’s important to note, the time in between necessary maintenance will depend on the water quality in your home. 1. The in-line screen filter should be checked periodically for debris and cleaned. 2.

What does error code 63 mean on Rinnai?

Error Code 63 What it Means: Circulation flow rate dropped below 1.3 gpm. How to Fix: Use temperature controller to display flow rate (hold UP for 3 seconds and press the ON/OFF button).

What are the error codes on the Rinnai?

Rinnai Error Codes Error Code 02: No burner operation during freeze protection mode. Call a plumber. Error Code 03: Power interruption during bath fill Turn off all hot water faucets/taps. Press On/Off button twice. Turn hot water back on and test.

Where are the error codes on my Rinnai tankless water heater?

The previous nine error codes are stored in memory. To access these codes, hold the ON/OFF button for two seconds and simultaneously press the UP arrow. Have a different tankless water heater brand that needs troubleshooting?

What kind of warranty does a Rinnai boiler have?

A single cookie will be used in your browser to remember your preference not to be tracked. Select a region. Commercial-grade units with the industry’s best warranty. Rinnai’s super high-efficiency models offer sleek design, maximum output and an array of features ideal for the hot water demands of large homes.

How does the Rinnai hydronic air handler system work?

Rinnai Vent-Free Convectors push heat to the farthest reaches of the room, evenly warming larger spaces and maximizing cost-savings. The Rinnai Hydronic Air Handler System easily integrates with select tankless water heaters or boilers to deliver energy-efficient warmth.