We have recently purchased a house and it has a Rinnai Convector 404 gas heater. We have just had a bottle and a new regulator installed by a qualified gas plumber/fitter.
The problem we have is that when the gas heater is operating we can smell the gas which is irritating to the eyes. The heater works fine and it lights well, its just the gas smell (its quite strong). Is there a way of cleaning it incase there is a blockage?
Any suggestions would be very appreciated.
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Beside cleaning the filters with a vacuum, There are no instructions on how to clean the inside of the heater. The back and front panels would need to be removed. Unless you are confident to remove the panels, just blow it out as you ahve done and make sure the filters are clean.
There are a couple of things that can cause this odor. But, being sure it's really a gassy odor is more important. It must smell like "rotten eggs" to be gas. If that is the odor you're smell, turn the heater of and contact an authorized Rinnai dealer for service.
If however the odor does not meet the "rotten egg smell", there are other things that cause the odor, but it's not really from the heater.
If you have painted or stained within the last 2 weeks, the heater has picked up the odor of the fumes (which you probably didn't notice) and has made time 50 times worse. The same holds true for carpet cleaning or new carpeting odors. If this fits the scenario, discontinue using the heater for a week or two until the odors subside. In the meantime, if weather allows, air the house out. Also, remove and clean the heaters filter, before restarting the heater,
I hope this helped you to troubleshoot & solve the problem.
Hi This is happening to us and I called Rinnai... they suggested that if anyone either in our apartment or an ajoining one has painted walls or varnished a floor that the convection heater picks up the smell and the only way to get rid of it is to burn it off by running the heater for several hours in a well ventalated room...
The 404 is a great heater. I am assuming it is a Natural Gas Heater. All it needs is a good blow out with compressed air. They tend to carbon up in the pilot light area. You will probably also find it is very dusty inside. Easiest way to clean the carbon out is to remove the hose at the heater and with compressed air blow through the fitting where you have removed the hose. Make sure you hold down the start button so the air can get through to the pilot light and jets. Don't connect the electricity for the fan when you do this.
To clean it out internally you only need to remove the front panelling. There are two screws holding the top panel (not to be confused with the side and top). The screws are located inside the bottom grill at the front. There are also screws for the bottom grill there which you will also need to remove and probably best to remove the bottom panel that house the front feet. It should expose all the inside workings of the heater except for the pilot light and jets etc. You should be able to see the fan - it is round and looks like a filter and sits behind the vent section. Make sure you give it a good blow out - it gets all dirt and dust around it. When you do it remove both the rear filters/covers. They are mesh. Blow the top one which is the larger metal one and make sure you blow inside where it fits over to remove the dust and dirt. Same with the other one which should be plastic with mesh. Once you do this put it all back together. Make sure all wires are connected and be wary with the compressed air as it may blow the connectors off from loose fitting parts. Once you get it all back together Test it and hopefully it should work. Hope this helps. I did one the same today that was having trouble starting and it now works like a new one.