Question about Rinnai Digital Remote Water Heater Control Mcc-45-4us
Posted by Anonymous on
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Posted on Jan 02, 2017
I'm mr.grzz, thanks for your question,
A code 12 on your control pad has allot of different remedy's, here is a list,
First it means you have flame failure,
Check to make sure the gas is turned on at the unit, the meter, or tank,
Check for obstructions at the flue outlet,
did they check the gas pressure ?
was the gas line properly sized ?
did they use Rinnai venting materials and was it properly installed ?
was the condensate collar installed properly ?
did they double check to make sure vent lengths were well within limits?
did they verify the dip switch settings ?
is the unit properly grounded ?
check power supply for loose connections
check power supply for proper voltage and voltage drop
check to see if flame rod is connected, this would be my guess as to what your trouble is, flame rod could be out of alignment as well, not sensing the flame, the other thing would be the gas, air in the line will cause this too,
the flame rod needs checked for carbon build up,
I know thats alot of tech data, but for all intents and purposes it would be best if you called a service tech that is certified with Rinnai to come take care of you, if you call them tell them you have a code 12, and you have the possible causes, I hope this was of help to you, please write us back and let us know, again thanks for your question, mr.grzz
Posted on Jan 21, 2009
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