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