Control board diagnostics

A refrigerator main control board pulled for bench diagnostics — testing relays and power stages to confirm exactly what failed before ordering a replacement part.

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Job details

What this job involved.

EquipmentRefrigerator main control board
Service typeElectrical diagnostics
LocationShop bench

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Diagnostics & repair.

Diagnostics

Fitting & line service

Flare fitting torqued and leak-tested as part of an appliance service call.

Diagnostics

Reading a restriction on the gauges

Suction pulled into a vacuum while the head held 168 psi — the signature of a blocked line.

Diagnostics

Frost where it doesn't belong

Heavy icing on the line at the compressor — visible evidence of a refrigerant-side fault.

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(628) 285-0504Fastest way to reach a dispatcher
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Mon–Fri 8am–10pm · Sat–Sun 8am–5pmEmergency calls answered after hours
San Francisco Bay AreaMarin, San Francisco, East Bay, Peninsula, South Bay