BWDESIGNS

Hello DTF professionals. I have an imported shaker/oven unit. Have been visiting your threads for awhile. We really are clueless when it comes to circuitry. Have recurring problems with the heater unit. I have purchased the Omron relays. We have new thermostat controller units. Have been corresponding (trying to) with the Overseas Tech department, and although they are trying to resolve...I thought I would approach experts. Is anyone able to provide a basic circuit drawing of this creation? I assume they are all basically the same. We cannot get the heating element to operate. There is new thermostat, and several new relays. We have also replaced the "Relay base". Although the wires are numbered, could it be connected wrong? How do we determine if a relay is burned out? Is there special compatible thermostats to work in these systems? Bought a REX-C100FK02-m*-an Any assistance is much appreciated. TIA