DescriptionThis video provides step-by-step instructions for replacing the manifold assembly on a Kitchenaid Gas Downdraft Cooktop (model #KCGD506GSS00). The most common reason for replacing the manifold is if none of the burners are igniting.
All of the information in this manifold replacement video is applicable to the following brands: Kitchenaid, Whirlpool
Step-By-Step Instructions1
KitchenAid Gas Downdraft Cooktop - KCGD506GSS00
2
Gas Downdraft Cooktop Manifold Assembly Replacement
3
Tools needed: half-inch wrench, Phillips-head screwdriver, quarter-inch socket or nut driver, adjustable wrench
5
Be sure to unplug the power cord.
7
Shut off the gas supply.
8
Use a Phillips-head screwdriver to unthread the long screws securing the cooktop to the underside of the countertop.
9
Use a quarter-inch socket or nut driver to loosen the adjustment screws securing the clamping brackets.
10
Rotate the brackets inward, then tighten the screws.
12
Detach the venting from the blower.
14
Now carefully lift off the three grates as well of the vent grille.
15
Remove all of the burner caps and the burner bases.
16
Remove all of the control knobs.
17
You can use string or wire to help pull them off of the valve shafts.
19
Have an assistant help you to lift the appliance up and use two pieces of wood to support the cooktop base above the countertop.
20
Now use a Phillips-head screwdriver to unthread all of the screws securing the orifice holders to the main top.
21
Unthread the screw holding the main top to the blower switch mounting bracket.
23
With the screws unthreaded, you can lift off the top.
24
Use a half-inch wrench to help unthread the nuts securing the gas supply tubing to the burner valves.
25
Use an adjustable wrench to help unthread the nut securing the main gas supply line to the manifold.
26
Next, unthread the six screws on the front of the cooktop base securing the manifold assembly.
27
Disconnect the wire connecter and you can fully remove the old assembly.
28
Prepare the new manifold assembly for installation by transferring the seals from the old gas valve shafts to the new ones.
29
Position the assembly on the base and connect the wire connecter.
30
Thread and tighten the six screws to secure the assembly.
31
Insert the main gas supply line into the manifold then thread and tighten the nut.
32
Do the same to secure the five gas supply tubes to the appropriate burner valves.
33
Realign the main top on the base so the surface igniters protrude through the holes in the top.
34
Confirm that the orifice holders are aligned, then thread and tighten the screws to secure the holders to the main top
35
Replace the screw securing the main top to the blower switch mounting bracket.
36
Remove the wood supports and center the cooktop in the cut-out space of the countertop.
37
Replace the control knobs by aligning them on the valve shafts and pushing them into place.
38
Align each burner base with the appropriate orifice holder so the spark igniter is positioned in the notch on the side of the base.
39
Position the burner caps on the bases.
40
Realign the three burner grates along with the vent grille.
41
Loosen the two adjustment screws and rotate the clamping brackets outward, then tighten the screws.
42
Thread one of the clamping screws through the outermost hole in the bracket.
43
Tighten the screw against the underside of the countertop.
45
Repeat for the opposite side to fully secure the cooktop.
46
Reattach the venting to the blower.
47
With the repair completed, turn the gas supply back on, plug the power cord back in and your gas downdraft cooktop should be ready for use.