METHOD FOR DRIVING GAS BOILER WHEN THREE WAY VALVE HAS TROUBLE

摘要

PURPOSE: A driving method is provided to conduct any one function even when a three way valve has a trouble, by continuously driving a gas boiler in a previous driving state. CONSTITUTION: A method is completed by the steps of: judging of a boiler converts heating to hot water in a state of driving heating and hot water mode; judging if the set time for the set temperature is passed when the boiler completes the conversion; sensing the temperature of hot water and judging if the sensed water temperature is reached to the set temperature range when the set time is passed; conducting the converted drive(hot water) when the temperature of the hot water is reached to the set temperature range or indicating that a three way valve has a trouble when the temperature is not reached to the set range and conduct the previous drive(heating). Therefore, the method senses and indicates the trouble of the three way valve with temperature of hot water and drives the boiler in a previous state so as to use at least one function when the three way valve has the trouble.