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Mr. Edward WilliamsAug 16, 2025
Why won't my Red-D-Arc ZR-8 engine idle down to low speed?
- HhigginsjennyAug 16, 2025
If the engine of your Red-D-Arc Welding System won't idle down to low speed, it could be due to: * The idler switch being on High Idle. Set the switch to Automatic Idler. * Insufficient voltage present between terminals #213 and #5E (voltage should be 12V DC). Check for proper connection of leads (#213, #5E, #215, #209, #209A, #224, #224A). * An external load on the welder or auxiliary power. Remove all external loads and short circuits. * Faulty wiring in the solenoid circuit. Check for broken leads #213 and #215. * A faulty idler solenoid. Replace it with a known good one. * A faulty P.C. Board. Replace the P.C. Board with a known good one.
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