Fill hoses, valves, the appliance, pump-out hose, and standpipe can each create a different leak pattern.
The short answer
Stop the cycle if water is escaping. Avoid wet electrical controls and do not move a loaded appliance. Record whether water appears during fill, wash, drain, or after the machine stops. Identify whether it is clean supply water or wastewater only from safe observation.
What to notice
Use the cycle as a clock
Water early in the fill can direct attention differently from overflow during pump-out. Note the selected temperature, load behavior, and whether a sink or drain changes at the same time. Do not run another cycle solely to reproduce damage. The existing timeline can help an appliance technician or plumber choose the first inspection.
Inspect only what is already accessible
From a dry position, look for moisture at hot and cold valves, hose connections, visible hose surfaces, the standpipe, and floor. Do not pull the machine or tighten a connection under pressure to test it. Record hose material and age only when documented, not from an uncertain visual guess.
Split appliance and plumbing scopes
A leaking tub or pump is different from a supply valve or overflowing standpipe. Ask which party moves the appliance, addresses flooring, reconnects hoses, and runs the final cycle. If a drain capacity or branch issue is proposed, ask for the evidence and whether other fixtures show related symptoms.
One useful question
Should I replace both hoses after one leaks?
A provider should inspect both connections and explain the recommendation. Matching age or wear may support replacement, but compatibility, valve condition, appliance instructions, and the actual failed point matter. Include controlled testing and access in the scope.