How long does it take to repair a hot runner heater that is leaking current?

I. Minor Leakage (Insulation dampness only, no structural damage) Total Repair Time: 6-8 hours Core Time Components: Heater disassembly + 4-6 hours of drying in an oven to remove moisture + cooling and retesting + reinstallation and commissioning. No need to disassemble the heater's internal structure. Repair can be completed during non-production hours of the night shift, without affecting normal production the following day shift. II. Moderate Leakage (Local insulation damage, heating wire not melted) Total Repair Time: 2-3 hours Core Time Components: Locating the damage point + cutting off the damaged section + refilling with magnesium oxide powder + insulation reinforcement + reinstallation and retesting. This is a minor repair that can be quickly completed on-site. Skilled engineers can complete the repair during production downtime, significantly reducing downtime. III. Severe Leakage (Heating Wire Blown, Large-Area Insulation Burned) Total Repair Time: 1-2 hours Core Time Consumption Components: Removal of the damaged heater + Replacement with a brand new compatible heating coil + Simultaneous replacement of aging cables/connectors + Full-process insulation verification; no complex internal repair procedures required. If a compatible spare heater is prepared in advance, replacement can be completed in a very short time, quickly restoring production. IV. Extended Repair Notice for Special Circumstances If the leakage simultaneously causes cascading failures such as sensor crosstalk or large-area oxidation of connectors, the repair time will increase by an additional 1-2 hours to address related issues simultaneously. After repair, continuous operation for 30 minutes is required to confirm stable temperature data without fluctuations before the entire repair process is considered complete.