Rinnai Error Codes & Diagnostics
Your Rinnai boiler is showing an error code. Here is what it means and what to do about it.
Rinnai Error Codes
10
Air-Supply or Exhaust Blockage
Restricted intake/flue, debris at termination, recirculating exhaust
11
No Ignition / No Flame Sensed
Worn igniter or flame rod, low gas pressure, gas valve fault
12
Flame Failure
Flame drops out mid-cycle - flame rod, gas supply, or combustion air
14
Thermal Fuse / Overheat
Scale buildup, restricted flow, or failing circulator
16
Over-Temperature Warning
High-limit trip - flow restriction or scaling
25
Condensate Drain Fault
Blocked trap, frozen drain line, or failed condensate pump
52
Modulating Valve Fault
Gas modulating valve signal out of range
61
Combustion Fan Fault
Fan motor not reaching target RPM
See an error code not listed? Call 604-359-1081 and our technician will help diagnose the problem. Most Rinnai repairs complete in a single visit.