The quickest way to see if the Transformer is receiving power is to plug a working lamp or radio into the outlet to see if outlet is providing power.
If unit is hardwired to power supply, testing power should only be performed by a licensed electrician.
If the outlet is not providing power check to see that the GFCI receptacle has been tripped. Note that sometimes the GFCI that protects the circuit for your Transformer is NOT the one the Transformer is plugged into! It may be found in the kitchen, laundry room or other location within the house! If the GFCI has tripped, reset it and test your Transformer again.
If the GFCI is set properly, next check the Circuit Breaker in the Electrical Panel. If tripped, reset it and test your Transformer.
If you have a Receptacle Tester (RT), insert it into the Receptacle in which your Transformer is plugged. The RT will tell you if the wiring from the Electrical Panel to the receptacle is OK or not. If it does not indicate two orange lights, something is wrong with the wiring. Consult an electrician!
