Question about Heating & Cooling
I had this same problem last year and went through all the checklist in poshpoms suggestions ( I am on mains Gas ). The issue was caused by the Flame rods. Near the 2 pilots at the front and the back. Those small rods each that 'senses' the flame become inadequate, so they were replaced with a new pilot assembly from Rinnai that had longer rods and better coverage. Issue was fixed. Good Luck.
Posted on Sep 09, 2010
Firstly here is a link to the manual.
The error code 12 has a few causes. If you are on LPG sometimes the gas regulator on supply line just after the bottles is the cause. Usually this is intermittent. If thewre are any blockages in the flue or chimmney it might give a 12, the flame would go very yellow just before it tripped and might smell a bit odd. I would start with the regulator, if you have something else on gas like a cooktop, light that up first, then try the fire. See what happens to the flame on the cooktop. If it dwindles too you definately have a gas supply fault. Don't be afraid to post the fault again if this doesn't help, I check for Rinnai problems avery couple of days.
Posted on Aug 24, 2010
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Posted on Jan 02, 2017
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