Built 2002 to 2014
R304 · R366
- Width
- 30 and 36 inch
- On the top
- Four or six sealed burners
- Underneath
- Gas oven
Wolf R304 and R366: can you still get parts?
For most of what fails on these two, yes. The R304 is the thirty-inch, four-burner body and the R366 the thirty-six-inch six-burner, both built between 2002 and 2014, and both are mostly valves, burners and steel. Availability is decided by the serial, not the model. Read it to Wolf Repair Denver on (720) 575-1433 and the parts question is settled before anyone sets off.
These are the two narrow bodies of the old series, and they turn up in Congress Park bungalows and Berkeley pop-tops more than anywhere else on our list — a thirty or thirty-six inch range is what fits a kitchen that was laid out in the nineteen-twenties. Most of them have been in place for fifteen years or more and most are still perfectly good.
What changes with age is not the range, it is the paperwork. On a current body the model tells you which part fits. On an R304 or an R366 the serial does, because parts changed partway through a twelve-year production run and two ranges wearing the same code do not always take the same component. Getting that number off the burner box before anything is ordered is the whole difference between one visit and two.
What it usually turns out to be
Every figure below is a band, not a quote. The fault is found first, the number is agreed with you second, and nothing is ordered until you have said yes to it.
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Burners refuse to light while the oven is on
UsuallyWolf documents this behaviour on R series bodies and gives a checklist for it without naming a cause. On a range this age the useful move is to measure what happens when the oven fires rather than to theorise about it.
Quoted from Quoted after the diagnosis
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Clicking that survives a thorough clean
UsuallyA hairline crack in the ceramic around an electrode, which drains the spark into the burner body. Drying and brushing will not fix it because nothing is wet or dirty; the electrode is the part.
Quoted from Igniter or spark module $180–$470
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A grate rocks under a heavy pan
UsuallyThe foot pads and rubber washers are held in place by tension alone, so they wander and fall out. Wolf notes that pads cannot be had for every unit and that some serials need a new grate instead.
Quoted from Quoted after the diagnosis
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One knob has gone gritty
UsuallyGrease inside the valve stem that has set hard over twenty years. A stem can usually be stripped, cleaned and re-greased; a worn detent or a loose stem means the valve, and the serial decides whether that is still on a shelf.
Quoted from Burner valve or orifice service $240–$610
Still wondering
How do I find the serial on one of these?
Lift the grates off, take out the burner ring, then lift the left-hand burner pan out of its recess. The tag is on the side wall of the burner box under it. Wolf notes that on some of the oldest bodies it turns up on the right-hand side instead.
Is a thirty-year-old range different again?
It can be. Wolf's R series ran from 2002, and anything older is an earlier generation with its own tag location and its own parts position. If the code on yours is not an R304 or an R366, send us what it does say and we will tell you what we know.
Should I replace it with a GR instead?
Only if the part you need has genuinely gone. A working R body is heavy steel with very little electronics in it, and the burners behave the same way the current ones do. Where the repair is a dead end, Wolf Repair Denver will say so rather than take the visit and shrug.
