Rational iCombi Pro Troubleshooting Manual page 15

Error tree: Combustion unstable
Service error: 32.3
Unit type: iCombi
Combustion unstable
Flame current fluctuating heavily or very low (<6µA at max
Air hose and/or flue gas evacuation blocked?
Burner and/or ignition electrode faulty?
Heat exchanger and/or steam generator faulty?
Service error: 32.3
Does the connected gas type match what is indicated
"Lockout error" → gas reset required after the error is resolved
Service 32.3
Gas error 19, 29, 39
power)?
No
No
No
No
Service error 32.3
on the nameplate?
Yes
Error in the gas combustion system
During a heating request (HA is permanently on), the burner goes out 5 times during the burning
19: Tabletop unit hot air / floor unit hot air top29: Tabletop unit steam / floor unit steam
Gas supply too small or too many parallel consumers, gas
Yes
Free the air hose or the flue gas evacuation from the
Yes
blockage or replace the parts if necessary.
Yes Replace the burner or the ignition electrode.
Yes Replace the heat exchanger or the steam generator
Replace the gas blower and the gas valve
1
Switch the unit to the gas type declared on the
No
Note: Repeat flue gas check required!
phase.
39: Floor unit hot air bottom
tank too cold
V01 · 05/2021 · RTS/Shof · en-GB
nameplate.
Gas reset