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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22109
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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I have an excelsior plus package unit. I am not getting

Customer Question

I have an excelsior plus package unit. I am not getting power to the thermostat. I looked for a fuse on the circuit board and did not recognize one. Any help would be appreciated.
Submitted: 11 months ago.
Category: HVAC
Expert:  BillyHvac replied 11 months ago.

hello,

the fuse is like a car fuse...blade type. On this board I believe it is yellow

If you want to post a picture of your board I can direct

Customer: replied 11 months ago.
Please find the attached pic
Expert:  BillyHvac replied 11 months ago.

thank you, ***** ***** to be an older version...can you please pan out with pic where I can see all components?

Customer: replied 11 months ago.
The other components are in the way. I will give it a shot Here is an angle from earlier. Im going back now.
Expert:  BillyHvac replied 11 months ago.

ok the big cube that sits in front of board..(transformer) that is what gets fried if the fuse is not there....we want to see if there is an inline fuse in one of the wires from that cube....or we need a meter to see if that cube is putting out 24v (which powers thermostat)

Customer: replied 11 months ago.
Its raining now. I will check it tomorrow. No fuse in line at all.
Customer: replied 11 months ago.
Two more pics.
Expert:  BillyHvac replied 11 months ago.

I checked the board number and you have no fuse. If the thermostat is dead then the the unit either has no power or the transformer is dead

Customer: replied 11 months ago.
Im going to buy a breaker and a transformer. Billy I want to thank you for your help!
Expert:  BillyHvac replied 11 months ago.

you are very welcome and thank you for the pics.

I wish you the best

Billy