Connecting two black (live) wires together without any load or device in between is generally not advisable and can be dangerous. In the context of a clothes dryer, doing so could have several potential outcomes, all of which are unsafe:
Short circuit: When two live wires are directly connected, it creates a short circuit. A short circuit occurs when the electrical current follows an unintended path with very low resistance, bypassing the normal load. This can result in a significant flow of current, generating excessive heat and potentially causing wires to melt or catch fire.
Overloading the circuit: If the wires are connected without a proper load, it could lead to overloading the circuit. Overloading occurs when the electrical demand on the circuit exceeds its capacity, potentially causing the circuit breaker to trip or the fuse to blow, cutting off power to the circuit.
Fire hazard: As mentioned earlier, connecting live wires directly together can generate excess heat, increasing the risk of fire. The heat can damage insulation, nearby materials, or even cause sparks that ignite flammable substances.
Electrical damage: Connecting live wires directly can damage the electrical components in the dryer or other connected devices. It can lead to burnt-out motors, blown fuses, or damaged control boards, resulting in the need for costly repairs or replacements.
Electrocution risk: Working with live wires without proper knowledge and safety precautions is extremely dangerous and can lead to severe electrical shock or electrocution.
If you're experiencing issues with your clothes dryer, it's essential to consult a qualified electrician or appliance repair professional to diagnose and fix the problem safely. Working with electrical circuits and appliances requires expertise and knowledge of electrical safety practices to prevent accidents and ensure proper functioning. Always prioritize safety and avoid attempting any electrical repairs or modifications unless you have the necessary skills and experience.