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Carl
Lv 6
How can I repair my gas heater?
My Rinnai ES38 gives code 99 a blocked vent. The tube to the outside is clear. Is the problem in the burner? Or could it be something else?
1 Answer
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- MarkoLv 66 years agoFavorite Answer
Recheck the air supply inlet and vent terminal
Page 16
Source(s): ac tech
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