Top 20 Blodgett DFG-100 Gas Single Oven Questions & Answers

Request the wiring diagram directly from Blodgett.

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Defective thermocouple.

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open burner panel and checked for door switch first ....good luck

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Check the door switch to see if it is making contact. It is located inside the front cover on right hand side, next to the chain sprocket.

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that is a door switch which locate bottom of panel. If that close ignite will ignite, if the door open the pilot will stop. Hope it help ..good luck

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to confirm check the Ohm draw on the temperature probe, i am not sure what is the correct one but you can check online at blodgett if probe okie then you will have an issue with the temp controller there possible the potentionmeter is worn out.....good luck

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You need at least 24 volts for the gas valve to open

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After burner on did you hear any spark ignitor if that your flame sensor is dirty or need to replace....good luck

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Carbon monoxide is both odor- and colorless, making it very dangerous. It has no characteristic odor.

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No keep the same spring but change the orifice and adjust the air mixture to get a clean burn

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The users manual, located HERE only has basic tips to check if the unit isn't firing or getting hot, As there is no pilot light, it seems that it is probably the unit's electronic spark that could be the cause. Does it give you a code on the display?

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If your oven is older or you live near the water check if there is a build up of fine rust over the burners. A fine wire brush lightly run over the top of the burners may be your solution. Before you attempt this disconnect electrical power and turn off the gas supply. If you are mechanical remove the front lower cover by opening the doors, removing the two screws located in the top of the lower cover next to the door hinges. The cover will remove to the front. Next remove the screws holding the shield in fromt of the burners. A long handled fine wire brush will allow you to brush the top of the burners. If there is a film of fine rust it will not be apparent when looking. After careful reinstallation of the burner shield and ensuring there is a safe area away from the exposed electrical connections for you. Reconnect electrical power and gas to the oven temporarily. This will alow the unit to be operated enableing you to look past the pilot flame to see if the burner flames are even across the burners. Disconnect electric and gas supply from the unit prior toiInstalling lower cover. After complete reassembly reconnect power and gas and enjoy.

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The serial number is under the left side door behind the cover. Open the doors take out the two phillips head screws which go into the top of the lower cover, one on each end just inside the door hinge, the lower cover will remove to the front.

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I suspect your silicone carbide ignitor is weak.

I have a nice video on my blog cover page HERE on silicone carbide ignition.

You can get parts, and service manuals for your machine HERE


If you need further help, reach me via phone at

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Hi, manuals for these ovens can be found on Blodgett web site, a link is below, if you scroll down their web page, each oven has a link to a manual.

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The problem can be easily given by the door safety interlock switch. This oven has a door safety switch system:

13: door switch

The switch is tested by jumping it or by reading Ohms to see if it is opening and closing circuit by reading zero and infinity when operated.

If the switch is OK, the spark module and ignitor is second in list. Coils are unlikely to be the problem because when they fail the burner does not work at all. The flame sensor may cause the same problem, but it rarely fails. With this ovens the flame sensor is also integrated in the ignition module. If the door is OK check also wiring to flame sensor probe and ignitor.

Here diagrams.

Here parts.



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1st stept check the ignitor if what happen...
2nd check the connection of wiring sometimes the wiring is loss

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