Unit will Not turn on

Is this a new tstat? How about trying cooling with fan in on position , what happens? What is the model number of your indoor unit please.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

the fuse is located in the circuit board in the blower compartment and the roll-out is located in the burner section and can be a reset-able switch style or the one time fuse link style which is a a small silver cylinder and is mounted in a ceramic piece and is held in with one screw. Both of these are mounted around the opening of the your burner assembly near the opening. This will be near the area of the gas valve.

the inside coil and outside unit should be matching in tonages another word if you have 2.5 ton outside the inside sould be the same. it don't matter what brand name or who made it.

I'd be surprised if you had a fuse in either the outside or inside unit. Typically the fuse(s) are mounted in a gray electrical box (on the house) near the outside unit.

You can usually - easily see the fuse box but if you don't just follow the electrical conduit from the outside unit - to the fuse box.

good luck!

ALSO CHECK FUSES IN BOX ON OUTSIDE WALL . SHUT OFF BREAKER BEFORE FUSE CHECK. BREAKER MUST BE TURNED ALL THE WAY OFF THEN BACK ON TO RESET

Look at the contactor on the condensing unit, remove the low voltage wires to the contactor and turn on the system. If the low voltage fuse doesn't blow, replace the contactor.

their is a control short some place check the control wiring . dog or rodents chewing threw it or shorted controls or thermostat id get service. Tom

double check your t-stat wiring your not getting 24volts to the contact at the cond. unit outside

Only 2 wires going outside.
Yellow from the thermostat and the common wire from the lv side of the transformer.

3 amp is standard.the fuse is blowing to protect the transformer.It is telling you that there is a short in the low voltage wiring.Goodman also had an issue with the coil shorting on the contactor.To prevent damage.....i'd call a pro.It should be a fairly simple repair.