water heater smoking?

[davidfrafaly]

When I turn on the electric water heater there is smoke coming from the elect junction box. Assume a loose wire connection. Cannot figure how to access.
3100RL. WH is under Kit cabinets. cannot access from under the sink. to much stuff (furnace, pipes, wires, vents) in the way from basement..... What is difficulty of "pulling" WH out far enough outside to access JB? Thanks.