Below are a collection of videos that will show you how to set up the different recirculation modes of the NRCR. Auto Learning Mode (Default out of the box setting): Schedule Mode (RC-9018M Remote and Remote Cord Required) Title 25 On Demand Mode: Recirculation Always ON: Recirculation Always OFF:
If you’re installing a new NRCR and want to make sure things get off to a great start or if your newly installed NRCR is experiencing 63 error codes or noises during recirculation you may need to purge air from the plumbing. Follow the steps in this video to learn…
EC93 or Error Code 93 An error code 93 relates to neutralizer1 life cycle and indicates it has reached the end of its effective lifespan. Performance of the unit may be reduced until the neutralizer is replaced and reset procedure followed (included with the new part). The built-in neutralizer does…
EC92 or Error Code 92 An error code 92 relates to neutralizer1 life cycle and is the first warning that it’s near the end of its effective life. The built-in neutralizer has a life cycle and does need to be replaced periodically. The neutralizer will need to be replaced and…
EC91 or Error Code 91 An error code 91 means incorrect gas type. For new installs: Verify the unit is provided the correct gas type. Verify the unit is installed according to the guidelines found in the installation manual either included with the unit or downloaded from our support site…
EC90 or Error Code 90 A 90 error code indicates a combustion abnormality. This means that the mixture of fuel and air is off from specification and is resulting in poor quality combustion. To simplify it, the unit is either struggling to move air in or out of the unit…
EC73 or Error Code 73 The 73 error code indicates a circuit board setting issue. It is triggered by the following conditions: Any changes made to the dipswitches or jumper wires inside the unit should be done with the unit disconnected from power. If you received a replacement circuit board…
EC71 or Error Code 71 The error code 71 is a “Gas Valve Abnormality. It’s a problem with the circuit board being able to operate the gas valve and gas solenoids properly. It’s common on newer installations where the unit is provided power from a backup battery or an alternative…
EC67 or Error Code 67 An error code 67 is an AGM Abnormality. The AGM (Air Gas Mixer) is the part that adjusts the air and gas mixture as needed for proper combustion. Common issues related to an AGM abnormality: AGM is stuck. During low flow demands, the AGM will…
EC29 or Error Code 29 An error code 29 indicates a problem draining the condensate1 from the unit. This code only applies to our high efficiency condensing models. Just like if you leave a cold can of soda out in a warm area and condensate forms on the outside, a…