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Model library · Viking Outdoor Grill

VQGFS5420

Viking VQGFS5420 Freestanding Grill

Most common issues on this model

  1. Sear burner flame lifts
  2. Rotisserie does not turn
  3. Gas smell near regulator
  4. One burner lags

The VQGFS5420 is a retired 42-inch freestanding gas grill from the 5 Series, with a ProSear burner and a rotisserie. It stands between the 36-inch and 54-inch cart grills.

Forty-two inches of grate means several burners sharing a single regulator, and the first useful test is whether a problem follows one burner or all of them. If one lags, we clean its ports and venturi. If all burners suffer, we check the regulator, hose and tank. A flame that lifts from the sear burner is a sign of too much pressure or too much air.

The rotisserie plug, motor and spit fork are checked together. If you smell gas near the regulator, close the tank valve and call the utility from outside. For a retired model we confirm parts, write the price in advance and provide a 30-day warranty.

Key features

  • 42-inch freestanding gas grill
  • 5 Series
  • ProSear burner and rotisserie
VQGFS5420VQGFS5420 questions
What causes the sear burner flame to lift?

Excess pressure or too much primary air pushes the flame off the ports. We measure pressure and adjust the air shutter until the flame sits steady.

Why does my rotisserie not turn on the VQGFS5420?

The outlet, plug, motor or spit may have failed. We test power at the outlet first, then the motor, and check the spit for binding.

How do you check the regulator?

We read pressure with a gauge at idle and with all burners lit. A regulator that sags under load or hisses needs replacement. The reading tells us whether the problem is the regulator or the burners.

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