Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm
Does it give you a flashing code as to why it went into lockout?
You should look for the flashing LED and then check the book for the reason.
It is probably a pressure switch or a dirty flame sensor....if the gas press. is alright...
Check the venting to make sure it is open and in good shape also...
Posted on Oct 13, 2010
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Posted on Jan 02, 2017
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