Problem
Possible Cause
Test/Action
Popping noise at burner
assembly during simmer mode
Burner assembly damaged or dirty with food
debris
Replace or clean the burner assembly.
Burner assembly cracked or warped
Replace the burner assembly.
Supply gas impurities
The problem is especially common with LP gas. If
possible, try a different gas supply.
Flame appearance on burner
assembly or assemblies
▪
Tall flame
▪
Yellow flame
▪
Pulsing flames
Port holes in burner assembly not to specification,
damaged, or dirty
Replace or clean the burner assembly.
Incorrect gas orifices
Check the stamp number on the orifices.
Gas pressure
Check the gas pressure with a manometer.
Secondary gas regulator within 10 ft of unit
regulator
The secondary regulator and unit regulator should
be at least 10 ft apart.
Unit regulator damaged
Check the gas pressure with a manometer.
No knob or lighted knob display
All light displays are dim
Issue with the neutral side of the light circuit.
No display lights
Check the voltage to the display light board.
Defective display light board
Replace the display light board.
No knob or lighted knob display
No light in bezel
1
Check the voltage to the bezel.
2
Check the electrical connection.
3
Replace the bezel.
No power to the unit
Check/connect power to the unit.
No knob or lighted knob display
No light in light module
▪
Check for 120 VAC to the DC rectifier.
▪
Check for 16 VDC from the DC rectifier.
▪
Check the light module for continuity.
Sealed Burner Rangetop with Wok Service Manual
Troubleshooting Guide
service.subzero.com
828990 REV. A
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