What should be done if there is no continuity between the coils in a transformer?

When testing a transformer, continuity between the coils is essential to ensure proper functioning. If there is no continuity, it indicates a potential break in the winding or a loose connection, which can prevent the transformer from operating correctly.

Inspecting for a broken wire or loose connection is the appropriate action because it directly addresses the potential failure points that could disrupt the flow of electrical current between the coils. Ensuring solid connections and intact wires will help restore continuity and allow the transformer to function as intended.

In contrast, other options do not directly resolve the issue of no continuity. Replacing the Digital Multimeter (DMM) would not help if the problem lies within the transformer itself. Checking for a faulty capacitor is irrelevant since capacitors are not part of the basic continuity test for a transformer. Additionally, increasing the input voltage is not a safe or effective solution and could lead to further damage if there's a fault in the transformer.