Housing Hd22-hd30b/3 - Part obsolete, USE 02-3971-31

Depending on installation, failure can present as noise, intermittent operation, abnormal noise, or a cycle that won’t complete normally. After replacement, run at least one full cycle and recheck for leaks, vibration noise, and fasteners that loosen during operation. Use part 02-3971-01 when ordering the Multiple brands Housing HD22 HD30B3 for repair and maintenance. Model reference(s) in the listing name include HD22, HD30B3. The listing indicates this part is superseded by 02-3971-31. This replacement component supports normal operation by restoring fit, sealing, alignment, or control behavior. A short post-repair check—visual inspection plus a full cycle—helps confirm the issue is resolved without introducing new leaks or noise. Once the root cause is corrected, performance should stabilize and output should return to normal. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. If the part interacts with water, do a leak check during the first run and again after a short operating period. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. Clean the area around the repair so debris doesn’t interfere with fitment or sealing surfaces. If the part interacts with water, do a leak check during the first run and again after a short operating period. If the part interacts with water, do a leak check during the first run and again after a short operating period. Take a photo before disassembly so you can confirm orientation and fastener locations during reassembly.