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Wai's Sewing Machine Company

San Francisco, CA

5.0(1 reviews)
Insured

About Wai's Sewing Machine Company

Wai's Sewing Machine Company provides professional appliance repair services in San Francisco, CA. Serving residential and commercial customers with expert technicians and quality parts.

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Frequently Asked Questions

What should a commercial kitchen preventive maintenance program include?
A comprehensive PM program should include: scheduled inspections at manufacturer-recommended intervals, cleaning of condenser coils and filters, calibration of temperature controls, inspection and testing of safety systems, lubrication of moving parts, replacement of wear items (gaskets, filters, belts), refrigerant level checks, combustion analysis for gas equipment, and detailed documentation for each visit. Avoid programs that are just a visual inspection without hands-on service.
What causes cloudy, soft, or small ice cubes?
Ice quality issues often indicate water system or refrigeration problems: cloudy ice suggests poor water quality or mineral content; soft ice indicates inadequate freeze cycle time or refrigerant issues; small or misshapen cubes typically point to low water flow, scale buildup on evaporator plates, or refrigerant problems. All of these issues affect the safety and quality of ice used in beverages and food service.
How much does commercial kitchen hood cleaning cost?
Hood cleaning costs range from $300 to $1,500+ depending on system size, grease accumulation, and accessibility. Small single-hood systems run $300-$500; larger multi-hood systems or restaurants with heavy cooking can run $700-$1,500. Access issues (long duct runs, high roofs) add cost. Budget for cleaning as a fixed operating expense — it's far less expensive than a grease fire, insurance claims, or health violations.