PH42GWT

What we most often repair on units like this

1. Touch or illuminated button area that responds poorly
2. Damper that sticks or chatters
3. Clean filter reminder that does not reset
4. Blower hum on the top fan speeds
5. Baffles with heavy grease along the front edge

Where the PH42GS uses plain push-buttons, the PH42GWT swaps in illuminated buttons and touch control, and it adds a damper plus four speeds. The step up shows in the service list: the touch area can fail where a mechanical switch would just wear, and the damper brings an extra moving part into the duct.

It is a 42-inch Professional hood with a 27-inch-deep canopy and 30 inches of clearance, a good match for a pro-style range with a wider top. Owners often tell us the touch buttons work only some of the time, usually on days when the kitchen is humid or the panel has grease on it. We clean the surface and then test the board.

Thermador no longer lists the PH42GWT as available and gives no successor. That makes careful diagnosis more important, because we want to fix what is actually wrong. The clean filter reminder and delay shut off are tested with the rest of the controls.

Key features

• 42-inch Professional wall hood
• Built-in, ducted; 18H×41 15/16W×27D in
• Illuminated buttons and touch control
• 4 fan speeds
• Damper, clean filter reminders and delay shut off; no boost speed
• Mounting height 30 in. over cooktop