Question about Rinnai Digital Remote Water Heater Control Mcc-45-4us
Did you size the gas line properly? sometimes if the gas pipe isn't sized properly it will cause some pretty loud wistling noises. also if you have something in the fan like bugs or lots of dust it will cause alot of problems with noises
Posted on Jul 29, 2009
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Thanks for that snap101. The plumber that installed the system also installed the gas pipe and assured us that the size was correct. What did eventually work - so far anyway - was to turn down the water pressure from the mains. I think it was a build up of pressure due to the water efficient shower heads we have to use in Australia.
when i turn the hot water, my rtgh 9.5 makes a terrible noise and it shuts down displaying a code 13
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