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Model library · Thermador Ventilation Hood

PH48GS

Thermador PH48GS

What we most often repair on units like this

  1. Push-buttons that stick or skip a speed
  2. Boost that fails to ramp up
  3. Blower rattle caused by an unbalanced wheel
  4. Draft or odor returning down the duct without a damper
  5. Grease running from loaded baffles

A 48-inch hood normally tops a pro-style range with six burners or a griddle, a setup that pushes a lot of heat and grease upward. The PH48GS has three speeds and a boost setting for that load, and it is built for a duct run that can carry the volume. A long or restricted duct is the most frequent cause when owners tell us a hood this wide cannot keep up.

The wider the hood, the longer the blower housing and the more baffles to clean. We pull each baffle and look at the channel behind it, since oil collects there where the bare eye does not reach.

This model has neither a damper nor a clean filter reminder. We ask how long since the baffles were washed and whether a draft has been felt. Thermador lists PH48GWS as the manufacturer successor if you need to check a replacement panel against the original.

Key features

  • 48-inch wall-mounted box-design hood
  • Ducted, built-in; 18H×47 15/16W×27D in
  • Push-button control, 3 fan speeds
  • Boost plus delay shut off
  • No damper, no filter reminder
  • Mounting height 36 in. over cooktop
  • Washable stainless steel baffle filters
→Codes

Codes this model may display

PH48GSPH48GS questions
Do I need a special duct for a 48-inch hood?

The duct has to be sized and routed to carry the airflow. We check its diameter, length and elbows during the visit, because a restriction limits even a strong blower.

How often should 48 inches of baffles be washed?

It depends on how you cook. If you sear or fry often, check them monthly. Without a reminder on this model, a visual check is your best guide.

Why does boost sound different from speed 3?

It spins the blower faster. A change in tone can mean a loose wheel or built-up grease, which we can find with the baffles out.

Request service

Schedule service for your PH48GS

Request a visit online in about a minute or phone our coordinators. Close-in neighborhoods often see a same-day slot; the outer counties usually get the next day across Houston.