Want this question answered?
Sounds like you might have a blown transformer, or a blown fuse on the transformer. Hope for the fuse. Its on the Furnace. Be sure your white wire is on the heat side of the thermostat, and the red wire is on the correct terminal also. The transformer can be checked with a voltmeter.
The power to the thermostat comes from the transformer in the furnace or air handler whichever you have. 1) the power to the furnace/AH is off, 2) the control fuse that protects the transformer is blown, 3) the transformer is defective, 4) the wire between the furnace and the thermostat got cut.
It is either a short in (1 or more) of the windings (if its multi-phase) or the applied voltage was too high. What is the application, size (wattage), voltage, a number of phases for this Xfmr? I might be able to help you troubleshoot it further with this information.AnswerIt depends on what you mean by 'blown'! Do you mean the primary fuse has operated? If so, then it's likely the transformer's load has exceeded the capacity of the transformer.
Blown fuses or bad elements.
Yes, a blown fuse can cause your furnace to not turn on. Check the breaker box and see if any of them have tripped.
It protects the Pilot Light from being blown out
It protects the Pilot Light from being blown out
It protects the Pilot Light from being blown out
In the event that you are discussing a wire free close by the circuit might look great with the visual test then, at that point, still coherence/ohmmeter test is required. Read More.. universalhc.ca/how-do-you-know-if-a-fuse-is-blown-in-the-furnace/
look in your text book
Glass is heated in a furnace until it begins to flow. It can then be blown or molded into shape.
Buddy ,, how can its possible if board blown. you must gone mad