Examined unit. Found wiring burnt off elements. Only half elements working. Replaced burnt wiring. Filled unit, filled to correct level. Drained open boiler, cleaned probes. Let fill, fully heated. Unit cycled off, 9psi. Steamed compartments. Unit cycled correctly. Drained boiler, refilled 3-4 times. Let heat. All elements heating. Unit came up to pressure and cycled off correctly. Did not find any problem with warwick controls while testing. Customer will use and advise.