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ERROR CODE: E03
ERROR TYPE: Over Temperature Warning
PROBABLE CAUSE: It will occur if the temperature of return and supply water exceeds 90 C.
SOLUTION:
1- Check that water valves of boiler installation are open.
2- If the combi boiler triggers this error in winter mode, check that at least 1 radiator is open.
3- Press reset button.
4- If the error is still present (or persists) after reset, notify gas safe engineer..
Updated on 9 January 2024, Tuesday
