How should recharging be performed if the detector indicates a leak during recharge?

• A. Stop recharge, fix leak, recheck, purging if necessary, and resume only when detectors show safe readings
• B. Continue recharge, monitor detectors
• C. Ignore the detector and finish recharge
• D. Shut down and evacuate

Answer: (A)

When a leak detector signals during recharge, safety takes priority: stop the recharge immediately, locate and repair the leak, then recheck with the detector. Purging may be needed to clear any residual refrigerant from the lines so the system can be charged cleanly. Only resume charging once the detectors show safe readings. Continuing or ignoring the detector would create a real fire or explosion hazard, and evacuating would be for situations where the leak cannot be controlled or detector readings remain unsafe.