Sourcing FAQ
How to Verify a Home Appliance Spare Parts Supplier in China
A five-step verification workflow for importers and repair chains: business records, OE number competence, paid samples, third-party inspection and written after-sales terms.
By CALEB MAO, Sales Manager, GO GO AUTOMATIC COMPANY LIMITED (GGATC) · Published 2026-09-28 · 8 min read

Short answer: you can verify a Chinese home appliance spare parts supplier in about one week. Check the business licence and export record, test their OE number competence on your exact part numbers, buy paid samples, arrange a third-party inspection for the first order, and get warranty and after-sales terms in writing. A supplier that completes all five steps transparently is safe to scale with; hesitation at any step is a disqualifier.
Step 1: Check business registration and export history
Ask for the business licence and confirm the company name matches the bank account name on the proforma invoice. Then verify export experience: which markets they ship to, which forwarders they use, and whether they have handled HS codes for appliance parts (commonly 8413, 8414, 8509 and 8516 families). A supplier that exports regularly knows carton labelling, CE and RoHS declaration paperwork and consolidation practice.
- Business licence name equals invoice beneficiary name.
- At least two reference shipments to your region, with bill of lading or courier records.
- Familiarity with HS codes and export declarations for the parts you buy.
- A working company email domain and a named contact person, not only a marketplace chat account.
Step 2: Test OE number competence
Send three to five OE numbers from your repair history, including one obsolete or hard-to-find reference. A competent supplier answers with the cross reference, electrical parameters, mounting dimensions and compatible model list for each item, and says clearly when a number is superseded or unavailable. Vague answers like "same as original, no problem" at this stage predict fitment disputes later.
Step 3: Order paid samples before any bulk order
Pay for samples by courier and test them on real machines. Sample cost is normally credited back on the first bulk order. The table below shows the minimum sample checks by category.
| Category | Sample checks |
|---|---|
| Drain pumps | Run dry and wet for 30 minutes; check head height, noise and connector fit |
| Magnetrons | Power output test on a bench microwave; check filament resistance and antenna cap |
| Fan and wash motors | No-load current, rotation direction, bearing noise, winding resistance |
| Control boards | Full function test on the target model; check relay marking and firmware behaviour |
| Sensors and thermostats | Resistance at two known temperatures; compare with the OE datasheet curve |
Step 4: Inspect the first bulk order
For the first one or two orders, book a third-party pre-shipment inspection (SGS, BV, TUV or QIMA all operate in Guangdong and Zhejiang). The inspector checks quantity, carton condition, labelling and runs the same electrical tests as your sample checklist on a random AQL sample. Cost is typically USD 250 to 350 per man-day and pays for itself on a single prevented bad lot.
Step 5: Put warranty and after-sales in writing
The quotation should state warranty period per category, replacement or credit policy for defective units, who pays return freight, and the evidence required for claims (photos, video, serial or batch numbers). Twelve months from shipment is the common market standard for motors, pumps, magnetrons and boards; consumables such as carbon brushes usually carry six months.
GGATC publishes OE references, tiered FOB pricing and MOQ on every product page and accepts sample orders before bulk. Contact CALEB MAO, Sales Manager, at sales88@ggatc.com or WhatsApp +86 181 5864 9251 to run the five verification steps on any part number in our catalogue.
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GO GO AUTOMATIC COMPANY LIMITED
Contact person: CALEB MAO, Sales Manager
Mon - Sat, 9:00 - 18:30 (GMT+8) · Reply within 24 hours
