7006U 7135U Cad Cell Flame Sensor - Fits Beckett Oil Burners
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CONFIRM THIS PART FITS
Enter appliance or equipment model number to verify compatibility with this part
Replaces Part Numbers
7006U 7135U Cad Cell Flame Sensor - Fits Beckett Oil Burners
Key Features
- Cadmium sulfide photocell senses combustion-chamber light and signals the primary control when ignition occurs and the flame remains established.
- 30.315-inch (77 cm) lead length supports routing around the burner housing.
- Copper enclosure maintains its shape near the combustion chamber.
- Operating resistance is 300 to 1,000 ohms while the burner runs, with 1,600 ohms maximum.
- Bench reading is 0 ohms under light and infinite resistance in full darkness.
- High-temperature wire insulation helps guard against current leakage and short circuits. The flexible leads are cadmium-free and soldered for a steady signal path.
Replaces / Cross-Reference Part Numbers
- 7006U
- 7135U
- C554A1687
- C554A1688
- 120320
- 124607
- 130367
- OC-10
- C-554A
- Item model number: 5445421
Compatibility & Fitment
Fits Beckett oil burner series A, AF, AFG, NX, SR, SF, and RW. This flame sensor is intended for wiring into a cad cell primary control designed for a standard two-lead photocell. Check the number on the existing cad cell and the burner series before ordering.
When to Replace
- The burner fires but drops out after approximately 10 to 30 seconds.
- The system repeatedly enters safety lockout or requires manual resets.
- The cad cell lens appears tan, smoky, or brown.
- Resistance readings do not reach 0 ohms under light or infinite resistance in full darkness during a bench check.
Installation Tips
- Turn off power at the burner service switch and circuit breaker before handling wiring.
- Pull the old cad cell eye from the holder slot.
- Release the old lead wires from the primary control terminals.
- Seat the replacement cad cell in the holder. Bend the bracket slightly only if a tighter fit is needed.
- Connect the new leads to the primary control terminals.
- Before firing the burner, use a multimeter to confirm a 0-ohm reading under light.
The part includes lifetime protection for defects or other product issues.
-
PRECISE FIT
Compatible with Beckett burner models A, AF, AFG, NX, SR, SF, and RW. -
SUPERIOR QUALITY
The cadmium sulfide flame sensor detects the burner flame for safe, reliable operation. -
SAVING SOLUTION
Restore your heater's function and enjoy DIY solutions with affordable replacement parts from BlueStars. -
EASY TO INSTALL
Disconnect the yellow CAD cell wires | Attach multimeter alligator clips | Tighten burner cover completely | Reconnect CAD cell wires
HOW TO INSTALL
1. Disconnect yellow CAD cell wires from the F and F primary control terminals.
2. Attach multimeter alligator clips directly to the CAD cell wires for testing.
3. Tighten burner cover completely to ensure absolutely no light enters the chamber
4. Reconnect CAD cell wires to F terminals once normal operating resistance is verified
2. Attach multimeter alligator clips directly to the CAD cell wires for testing.
3. Tighten burner cover completely to ensure absolutely no light enters the chamber
4. Reconnect CAD cell wires to F terminals once normal operating resistance is verified
Compatible Models
Locate the model number of your appliance or equipment on the manufacturer's label and use it to check compatibility before ordering
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FAQs
Suggestions
Common Model Number Locations
Need help finding your model number? Select your appliance or lawn equipment below for location diagrams
- Above the refrigerant valves on the back of the air conditioner
- On the side of the unit near the run capacitor or electrical lines that go into your home
- On either side of the exterior
- On the back of the unit where the power cord is located
- In the cool air exhaust port
- To the left of the fan opening, on the weather barrier
- Below the control panel
- On either side of the exterior
- Behind the front grill on the frame
- On the door frame
- On the inside of the tub wall
- Behind the control panel
- On the door
- Inside the edge of the unit
- On the back exterior
- On the door
- On the side of hose storage
- Inside the edge of the unit
- On inside of the door
- On the door frame
- On the back exterior of the unit
- On the exterior side of the unit
- Behind the control panel
- On the inside of the door
- On the door frame
- On the exterior side of the unit
- At the top of the unit
- On the inside of the dryer door
- On the door frame
- Under the washer lid
- On either side of the exterior
- On the back exterior of the unit
- On the door frame
- On the exterior side of the unit
- On interior wall
- On the control panel
- On side of door
- On the right-hand side of the vent, under the control panel
- On the interior wall of the microwave (microwave model number only)
- On the door frame
- On the rear panel
- On the exterior back of the unit
- Inside the top part of the vent duct (in down-draft models)
- Underneath a burner
- Underneath a knob
- Underneath the cooktop (lift-up style)
- Bottom of cooktop
- On an exterior wall
- On an inside wall
- On the door frame
- On the right-hand side of the vent, under the control panel
- On the interior wall of the microwave (microwave model number only)
- On the door frame
- On the rear panel
- Behind the control panel
- Under the front surface unit
- On the door frame
- Interior side panel
- On the exterior of the unit
- On the inside of the lower storage compartment wall
- On top the hood
- Behind the filter
- Under the hood
- On the inside of the door
- On the exterior back of the unit
- Inside on the rear wall
- On the exterior side of the unit
- On door jamb
- On rear of frame
- Behind front panel
- On ceiling of refrigerator
- On interior wall
- On the inside of the door
- Behind crisper drawer
- Behind kickplate
- On ceiling of refrigerator
- On interior wall
- On door frame
- Behind crisper drawer
- Behind kickplate
- On ceiling of freezer
- On interior wall
- On the inside of the door
- Behind kickplate
- On the exterior side of the unit
- On inside of the door
- On the door frame
- On the back exterior of the unit
- On the front exterior of the unit
- On the control panel
- Inside the lid
- Under the lid on the frame
- On the exterior of the unit
- At the top of the unit
- On the inside of the dryer door
- On the door frame
- Under the washer lid
- On either side of the exterior
- On the top center of heater
- On the exterior of the unit
- On the starter housing
- On the side of the housing, behind the top handle
- On the side of the motor housing
- Near the rear grip
- On the top or sides of the engine housing
- On the gas tank
- On the recoil housing
- On the handle bars
- On top of the engine cover
- Near discharge chute, often behind chute flaps
- On rear of the deck, behind the engine
- Dash panel
- Back of mower/rear bumper
- Underside of the seat
- Lower side of hood, near engine
- Frame (beneath the seat, footrest)
- Mower deck
- Underside of the seat
- Frame beneath or near the seat
- Back of mower/rear bumper
- Lower left side between gas tank and mower deck
- Under the foot plate
- On the rear of the blower
- Inside of vacuum canister
- Side of the motor housing
- On the rear base of the vacuum
- On the bottom of the belly of the vacuum
- On the frame near the engine
- On the side of the auger housing
- On the lower rear of the snow blower between wheels
- On the side of the motor housing
- On the shaft
Select an appliance to see where its model number is located.
