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Rinnai water heater error 12
Flame failure. The flame went out — low gas pressure, a dirty flame rod or a venting problem.
Serious · needs a technician
12
Meaning: Flame failure
What causes 12
The flame went out — low gas pressure, a dirty flame rod or a venting problem.
What to do
Check the gas supply and that the vent is clear. The flame rod needs cleaning by a technician.
Can I fix it myself?
No. This is a fault a technician should handle; keep using the appliance and it can get worse or become unsafe.
If the code comes back
Book a visit and add the code to the booking. A technician arrives knowing which parts to bring, diagnoses the water heater for a flat $89 and gives you an exact quote before doing any work.
Same water heater
Other Rinnai water heater codes
Different appliance?
12 on other machines
- Rheem water heaterFlame loss