Protect people and the equipment first
If you smell gas, leave and call 911 and your gas utility from a safe place without using controls or a phone in the affected area. Atmos Energy gas emergency guidance. Controls and phone precautions. Stay away until the gas utility's safety experts say you may return. Utility all-clear guidance.
Stay clear of water near wiring, controls, outlets, or other electrical equipment. Do not touch wet equipment or reach inside to stop a leak. Arrange qualified service and describe the water location and heating failure. If there is no gas odor or other immediate hazard and normal shutdown can be performed safely under the owner's instructions, keep heating off while awaiting appropriate guidance.
Find out what “cleared” meant
Review the invoice. Was a blockage removed, a drain repaired, a pump replaced, a switch reset, or a code erased? Those actions do not mean the same thing. Ask what finding showed the cause and what was checked after the action.
We recommend bringing the original and recurrence reports together. Record when trouble returned, whether water was visible, what code was safely visible on the normal display, and whether the failure followed a long heating run or a weather change. Do not remove tubing or open the trap to improve the report.
Ask for the path to be checked as a system
Have the technician use the exact model's instructions to determine which drain, trap, tubing, pump, safety control, and related venting checks apply. Orientation and drainage arrangements can matter. Daikin's DM96TN manual, for example, has specific trap and drain requirements tied to how the furnace is installed. That is a reason to check your model's arrangement, not a layout to copy yourself. Daikin DM96TN drain instructions.
Ask whether the suspected switch was responding to a real drainage condition or failing independently. A switch is an information source or protective control. Changing it does not establish that the water can drain properly.
Make the next repair answer the recurrence
Ask what work addresses the confirmed cause, what operation will be checked afterward, and what remains uncertain. If the next required work belongs to another trade, ask for the task, responsible provider, and cost inclusion.
Your next step is to share the first repair record and the return pattern with qualified service. Request a cause-and-resolution explanation, with a recurrence plan if the event cannot be confirmed during the visit.