Solution: Turn OFF the water flow on the hot water tap. The error code 03 appears on the controller. Problem: When the BC-100 temperature controller is used for the bath fill function, there will be no water flow when the power resumes after the power outage. Problem: The water heater burner does not operate in freeze protection mode. Keep in mind that two different problems with different Rinnai error codes can be solved using the same procedure. Note: We will assume that your Rinnai water heater was installed professionally by a licensed technician. Press and hold the ON/OFF button for two seconds and press the arrow "UP," and the last nine Rinnai error codes will appear and flash one after the other. You can easily find the most recent error codes if your water heater is connected to MC-91 or MCC-91. You can also buy advanced temperature controllers to get some additional functions. The temperature controller MC-91 is found on Rinnai water heaters as the standard feature, integrated into the front panel, while with the outdoor models is provided with the purchase. Rinnai error codes explained and how to fix the problem Keep in mind that today's modern tankless water heaters, including models from Rinnai, due to the complex design, require a lot of knowledge and skills for the repair of the faulty element.īefore making an expensive service call or spend time and money to fix it, contact a company that will connect you with professional plumbers and provide you with up to 3 FREE Quotes. When the problem is detected, the error code flashes at the temperature display on the following models: MC-91, MCC-91, and MC-502, while it flashes at the clock display on models MC-100 and BC-100. Rinnai water heaters are smart they use the self-diagnostic tool to check the operation regularly. With most error codes, the unit will turn itself OFF. One of the neat features that comes with any Rinnai tankless water heater is the temperature controller, which allows you to set the temperature of the outgoing hot water and see one of many Rinnai error codes that appear when there is a problem. Rinnai water heaters are among the most advanced tankless appliances in North America they are made of quality materials, include advanced features as can be seen in this review, and utilize very sensitive elements. Explore the most common heater's problems and find out how to fix them. You can then spread your payments out across multiple weekly or fortnightly instalments.Ĭall today or send us an online web enquiry and we’d be happy to solve your plumbing dilemmas.How to troubleshoot Rinnai water heaters successfully with the Rinnai error codes. With our interest free** repayment options, you can relax knowing that we can being work promptly without you paying a single cent upfront. Our company operates 24/7, so you can always call upon us to fix your plumbing problems no matter the time of day. Even in the event that your Rinnai hot water system is not repairable, we can provide an on site quotation to replace it and can have your new unit installed and operational on the same day. Whether you are requiring thermocouples, elements, or pressure relief valves to be replaced, we can supply and install all parts to get your hot water unit up and running in no time. No matter what error code your Rinnai system is showing, our plumbers will be able to quickly identify faults and work towards finding a solution. It is imperative that all gas works are carried out by a qualified gas fitter, not only to meet Australian regulations but also to ensure the safety of persons living in the home. If the gas pressure to the hot water system is insufficient there can be a number of causes, most of which require a qualified gas fitter to correct.įortunately, Metropolitan Plumbing employs fully qualified gas fitters who have years of experience repairing and replacing Rinnai hot water systems. What Can I Do to Solve An ‘error 12’ on My Rinnai Hot Water Unit?įirstly, check the gas connections and gas pressure to your hot water system to ensure that the pilot light is not out just because there is no gas to the unit. Damage to the flame rod protective sleeve.Moisture in the tubing connecting the gas combustion chamber to the gas valve (in internal units only).Debris and dirt clogging the fan blower.Debris and dirt clogging the gas burner.Incorrect venting material installed for your specific unit. Incorrect gas pressure supply your hot water unit.There are a number of reasons why your Rinnai unit is showing this error code but some of the common causes include: This can be quite a difficult error code to solve yourself, especially if there are more extensive issues occurring within your unit. In this instance, your hot water unit has not recognised that there is a flame in the burner box. If you’re getting Rinnai error code 12 on your hot water unit, it indicates that a flame failure has occurred on the system.
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