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How do you fix a furnace main gas valve that is stuck in open position and main burner burns all the time replaced thermostat and new wire without change?
Wiki User
∙ 15y ago
the without change part is the most difficult part of the answer. Change the valve. Mine was less than $100.
You have a runaway gas valve-the other contributor is right-replace the gas valve asap.
Wiki User
∙ 15y ago
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How do you turn furnace on without thermostat?
To turn on a furnace without a thermostat, locate the furnace switch on or near the unit. Flip the switch to the "on" position to start the furnace. Keep in mind that without a thermostat, you won't be able to control the temperature or set a programmed schedule for the furnace to operate.
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