Thread Number: 72533  /  Tag: Other Home Products or Autos
Rinnai 556 repair adventure :)
[Down to Last]'s exclusive eBay Watch:
scroll >>> for more items
Post# 958367   9/20/2017 at 21:02 (370 days old) by cfz2882 (Belle Fourche,SD)        

got around to installing my Rinnai 556 FA III-N gas heater last week-placed it for supplementary heat in the living room.Bought this and a couple other Rinnai heaters in used/as is condition-banged up a little and with very little use,the one installed made in 2006.started it up,seemed to be working well but found it stopped and flashing error the next morning-about 4 items came up when diagnostics enabled-changed room temp thermistor location and fixed loose ground to PCB-again found stopped and flashing next morning,flame rod fault given and loose connection at flame rod run lasted 1 1/2 days before stoppage for flame fail and gas solenoid valve fault-burner would ignite then blow out when draft blower ramped up.Poking around ,found plug for high fire valve was not making good contact because someone had stuffed meter probes in some of the plugs and bent the contacts-corrected that and so far working good....So far looks like all the problems were caused by a service toad mucking around in it :)

Post# 958884 , Reply# 1   9/24/2017 at 11:09 (366 days old) by cfz2882 (Belle Fourche,SD)        
had to adjust pressure

got a heat exchanger overtemp after running ~1 1/2 hrs on high fire,so turned down high fire pressure 1/2"WC to get pressure back in spec and that seems to have it fixed now-running 2 days without a problem :)

Forum Index:       Other Forums:                      

Comes to the Rescue!

The Discuss-o-Mat has stopped, buzzer is sounding!!!
If you would like to reply to this thread please log-in...

Discuss-O-MAT Log-In

New Members
Click Here To Sign Up.

Discuss-o-Mat Forums
Vintage Brochures, Service and Owners Manuals
Fun Vintage Washer Ephemera
See It Wash!
Video Downloads
Audio Downloads
Picture of the Day
Patent of the Day
Photos of our Collections
The Old Aberdeen Farm
Vintage Service Manuals
Vintage washer/dryer/dishwasher to sell?
Technical/service questions?
Looking for Parts?
Website related questions?
Digital Millennium Copyright Act Policy
Our Privacy Policy