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KONGRA LLC · Kitchen ventilation diagnostics

Range Hood & Downdraft Repair in San Jose

Independent diagnostics for premium kitchen ventilation: wall and island hoods, ceiling-mounted systems, retractable downdrafts and remote blowers. KONGRA reviews the controls, blower and accessible duct path as parts of the same installation.

Fan will not start, but the lights still work

Tell us which controls respond, whether any fan speed works and whether the blower is silent, humming or intermittent. Working lights do not establish that the blower circuit is healthy. The complete hood identity and the location of the motor help determine the next checks.

An original equipment photograph identifies a BEST by Broan P195-2M series unit from a fan-not-starting inquiry. Our model-specific guide explains the control sequence and the information needed before a motor, switch or board is proposed. It does not claim a completed board repair.

Thermador hood motor replacement

KONGRA replaced blower motors in a Thermador kitchen ventilation system. Read the repair overview and learn which equipment details help prepare a Thermador hood or blower service request.

For another Thermador request, include the hood and separate blower labels, control response and access details. The equipment configuration is reviewed before a replacement component is proposed.

Downdraft lift, blower and controls

A downdraft that will not rise is a different starting point from one that rises but will not extract. Record the lift response, blower response, indicator behavior and whether the fault depends on position. The downdraft and its separate blower can have different model labels.

Our Viking restoration record includes VIPR160/VIPR161 fitment research, a VPIV1600 blower and later documented downdraft work. It shows why cabinet space, countertop opening and duct connection need review together. The exact donor and final lift/control components are not established in that record.

Island, ceiling and remote-blower installations

Include a photograph of the complete hood and describe whether the motor is inside the canopy, in the attic or mounted outside. Ceiling access, roof access and the control-to-blower connection affect the visit plan. Model information is requested for the hood and the remote blower where both are present.

For Thermador, Wolf, Viking, BEST by Broan, Zephyr, Bertazzoni and other premium equipment, send the exact model for scope review. A similar appearance or duct diameter does not establish motor or control compatibility. Access and any work requiring a separate roofing, duct or installation trade are agreed before work proceeds.

Weak extraction and disconnected attic ductwork

A running fan with poor capture needs a different assessment from a fan that never starts. Useful observations include the affected speeds, unusual noise, filter condition and whether the problem began after installation or nearby building work. KONGRA checks the accessible installation and records the findings before recommending a component.

On October 13, 2026, an attic kitchen exhaust duct connection was repaired and sealed. Two original completed-work views show the connection. The case documents that repair without inventing a hood model, an airflow measurement or roof work.

Arrange a ventilation diagnostic visit

Send your city or ZIP, hood and blower labels, control-panel photograph and a short video of the symptom if available. Mention ceiling height, attic access and any roof-mounted equipment. KONGRA serves San Jose, Los Gatos, Saratoga, Campbell, Cupertino, Santa Clara and nearby Bay Area communities.

The proposed scope identifies the diagnosed issue, parts or access requirements and the checks to record after approved work. Residential kitchen ventilation is reviewed separately from restaurant rooftop exhaust and related commercial systems.

From the field

Original equipment photographs

Metal kitchen exhaust duct elbow and vertical connection with foil sealing in the attic
Repair and sealing documented
Attic kitchen exhaust duct connection

Original completed-work photo from October 13, 2026. The repair concerned the attic duct connection; no airflow reading or roof work is claimed.

See both repair photographs

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FAQ

Frequently asked questions

Can a hood and remote blower have different model numbers?+

Yes. Send both labels where available. The canopy controls and a remote or external blower need a compatible configuration.

Do you assess downdrafts that rise but do not run?+

Yes. Describe the lift, indicator and blower responses separately and send the downdraft and blower models for scope review.

Do you service island and ceiling-mounted hoods?+

Send the model, installation photograph and access details. KONGRA reviews the equipment and access before confirming the visit scope.