Question about Rinnai Heating & Cooling
To test the thermocouple you will need to heat the tip with a lighter and use fluke meter to test the millivoltage being produced by it. To purge the unit of air shut off the gas line valve. Disconnect the connecter on the unit. And turn on the valve just slightly for a few seconds and release a little bit of gas. Be very careful doing this!!! Make sure there are no sources of ignition nearby. A few seconds of bleeding should be enough to clear out any air in the gas line. Then re-connect and tighten connector using two wrenches(one for a backup) then turn thee valve back on and listen/smell for any gas and soap fittings to check for leaks. After the air is clear if this is a manually set pilot then push the ASO button you use to set the pilot. You may need to hold it for a minute to make sure all the air goes thru the pilot. Then light the pilot while holding the ASO button in. You may need to hold this for a minute or two. When you let go it should stay lit. Look for a strong pilot flame that is blue not yellow and is making proper impingment with the thermocouple/pilot generator head assembly. You will not be able to fully test this unit without the water on due to this unit works off of a pressure/flow switch and the burner will not come on if it does not have water flowing. If it is not electric ignition and the pilot is lit manually then you should be able to light the pilot and have it stay on.
Posted on Sep 26, 2009
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Posted on Jan 02, 2017
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