Bosch NGM5456UC Instruction Manual | Page 10

Bosch Gas Cooktop Instruction Manual - NGM5456UC.
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10

Operation

About the Appliance
Use the cooktop for surface cooking applications such 

as boiling, frying, simmering, steaming and sautéing.

9

WARNING

The burning of gas cooking fuel can create small 

amounts of carbon monoxide, benzene, 

formaldehyde and soot. To minimize exposure to 

these substances, the burners should be adjusted 

by a certified installer or authorized servicer to 

ensure proper combustion. Ensure proper 

ventilation with an open window or use a ventilation 

fan or hood when cooking with Gas. Always operate 

the unit according to the instructions in this manual.

Normal Operation - Electronic Ignition/Reignition
The cooktop uses electronic igniters to light the burners. 

There is no pilot light. Each burner has its own igniter. If a 

burner flame blows out during use, the burner will 

automatically reignite.

9

CAUTION

To avoid possible injury or damage to the 

appliance, ensure grates are installed exactly per 

installation instructions and not backwards or 

upside down.

The igniter should be clean and dry for proper operation.

Avoid getting water or food on the igniter. 

If the igniter is wet or soiled, it may spark without 

igniting the burner, or even spark continuously when a 

flame is present.

Note:  If the burner does not light within 4 seconds, turn 

the burner off. Check to see that the burner cap is 

positioned correctly on the burner base and the igniter is 

clean and dry. If a burner still fails to ignite, see “Before 

Calling for Service”. 
When a flame is present and a Low setting is used, the 

igniter may occasionally spark. This is normal.

9

CAUTION

To avoid possible injury or damage to the 

appliance, ensure grates are installed exactly per 

installation instructions and not backwards or 

upside down.

Typical Flame Characteristics
The burner flame should be blue in color and stable with 

no yellow tips, excessive noise or fluttering. It should 

burn completely around the burner cap.
Checking Flame Characteristics:

If the flame is completely or mostly yellow, verify that 

the regulator is set for the correct fuel. After 

adjustment, retest.

Some yellow streaking is normal during the initial 

start-up. Allow unit to operate 4 to 5 minutes and 

re-evaluate before making adjustments.

Foreign particles in the gas line may cause an orange 

flame during initial use. This should disappear with 

use. Check burner to make sure port holes are not 

obstructed. If the ports are clogged.  "Before 

Calling for Service" on page 14

Note:  An audible “pop” may be heard when the burner 

is turned off manually. The “popping” may be louder with 

LP gas than with natural gas. This is normal.

Yellow flames:
Further adjustment is required.

Yellow tips on outer cones:
Normal for LP Gas.

Soft blue flames:
Normal for Natural Gas.

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