Category — 06
Boiler error codes, water pressure and reset steps you can try before calling service.
On Arçelik washers, E01 indicates the door lock, E02 water inlet, E03 drain/pump, E04 overfill and E05 heater/sensor faults. E02 most often appears with a closed tap or kinked hose; E03 with a clogged pump filter. Powering off, checking the tap and cleaning the pump filter solves most cases; repeating codes are sensor faults requiring service.
When a Baymak boiler's pressure drops below 1 bar the display may show a lockout and the device can stop. Refill with the filling loop under the boiler to 1.2–1.8 bar: open the loop slowly, watch the display, close it firmly at the target value and reset if needed. Constant drops point to a leak or expansion vessel fault.
If you refill every 1–2 weeks, something is losing water: the usual suspects are weeping radiator bleed valves, a not-fully-closed filling loop, silent discharge through the safety valve or a failed expansion vessel. Check the loop and valve first; if pressure rises while heating then falls, the expansion vessel must be tested.
When boiler pressure drops below 1.0 bar, slowly open the filling loop underneath until the gauge reads 1.5 bar, then close it. It takes 2–3 minutes. Frequent drops indicate a leak or faulty expansion vessel — call a technician.
On DemirDöküm boilers, F1 signals flame formation/absence, F2 overheat protection, F3-F5 flue/NTC faults, while N codes indicate gas/water supply states. The common F1 appears when the gas valve is closed, gas is out, or the igniter is dirty; switching off, checking the gas valve and resetting fixes most cases. F2 overheat triggers with closed radiator valves or pump faults — check pressure and valves before resetting.