![]() The Tech said when the thermostat called for heat the fan came on, followed by the gas valve opening, followed by the sparker attempting to fire up (Click) but failure to light. My observation of an involuntary shutdown was as follows:Unit ON but gas burner not lit temperature cooled to below thermostat setting unit fan came on for about 10 seconds then clicked followed by shutdown. Additionally during his second visit he was in telephone contact with Rinnai technical service. The Tech I had working on the unit seemed to fully understand the circuitry and sensors. When the heater shuts off on its own I have to turn the shut off knob to OFF, move the temperature control to high and turn the knob back to ON. Thanks Jadnshua for your response and analysis which I appreciate. Just like yesterday's car mechanic, unless he is smart and willing to learn, today's electronic devices can be hard to understand and old school can't cut it on these high-tech devices all the time. Trial and error in replacing potentially expensive parts is not the best way to fix it, either - you've got to throw some understanding in along with it. If you can't do it, it can get expensive finding someone who can. ![]() You need to read the theory of operation and then diagnose. Just in that one component, it could be the controller not sending the signal to ignite, the igniter could be dirty and not spark (or glow if it is that type), the gas valve could be dirty and there isn't enough gas, the flame sensor could be bad and even if it did light, it couldn't sense it. An intermittent problem is the hardest to diagnose.Ī faulty igniter is only one possibilty. Reviewing those and their sequence is critical to discovering what's going on. If there's a circuit board, often there are a series of lights that show you what's going on. in the circuit, and any one of those could trigger the system something's not right and shut things down. There may be flame decectors, pressure sensors, overheat sensors, etc. A closed combustion system is more complicated than one with an atmospheric flue, for example. Reading and understanding the interlock and start/stop routine of the system can go a long ways towards isolating the problem. Modern systems often have many levels of safety interlocks. Once it does happen, do you have to reset something to make it work, or does it self-recover eventually? Have you been down there when this happens? It is often easier to evaluate if you can see it happen. They are either natural gas or LP gas (propane) fueled.Many of the things have a fairly decent troubleshooting section in their manual. ![]() No injuries have been reported.ĭescription: The recall involves Rinnai EnergySaver Direct-Vent Wall Furnaces, Models RHFE 431 and RHFE 556. Incidents/Injuries: Rinnai has received 11 reports of carbon monoxide leaking from the furnace. Hazard: A gasket in the unit can fail, posing a risk of poisonous carbon monoxide gas leaking into the home. Manufacturer: Rinnai America Corp., of Peachtree City, Ga. Name of Product: Direct-Vent Wall Furnaces, Models RHFE 431 and RHFE 556 It is illegal to resell or attempt to resell a recalled consumer product. Consumers should stop using recalled products immediately unless otherwise instructed. Consumer Product Safety Commission, in cooperation with the firm named below, today announced a voluntary recall of the following consumer product.
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