Ferroli gas boiler A03: what it means and when to call a pro · Laos
Severity: Stop nowFerroli gas boiler error A03. The boiler overheated and the safety thermostat cut it out, usually because heat is not being carried away from the boiler, for example by closed radiator valves or poor circulation.
Meaning
The boiler overheated and the safety thermostat cut it out, usually because heat is not being carried away from the boiler, for example by closed radiator valves or poor circulation.
Severity
Stop now
Stop. Switch it off and call a pro
Steps are not shown for this code because no qualified person has reviewed them yet. What is safe: switch it off and call a pro.
Source
The repair: Boiler overheating repair
Prices for repairs in Laos are in LAK.
Other Ferroli codes
- Ferroli F37 The heating system water pressure is too low, usually because of a slow leak or water lost from the circuit.
- Ferroli A01 The boiler failed to ignite (no flame was detected) and has locked out.
Brands in our catalog for gas boiler: Ariston, Baxi, Bosch, Ferroli, Ideal, Potterton, Vaillant, Viessmann, Worcester Bosch. The same code on another brand is not in the catalog yet, and we do not guess what it means.
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