Thermador range - can’t boil water

last year

Does anyone have difficulty getting a pot of water to boil on their gas top Thermador range? Our 48” unit is 1 yr old (2022), this is a replacement for a previous 48” that was in pristine condition, but the circuit board went bad and couldn’t be replaced because the circuit boards were no longer being manufactured. In addition, I have a temperature gauge in the oven and the interior temperature never jives with what I set the oven to be. Service is scheduled but still cant figure out why water will not boil on certain burners that fire up perfectly and look perfectly fine - its also 100x worse if the oven is on and the vent is blowing the flames. Its a horrible set up, our last range had a back vent that was taller and did not blow on the flames. I did not have any of these problems with my previous Thermador 48”. At this point I would not recommend or ever purchase another for anyone considering.

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Comments (9)

chispa
last year
Do you have natural gas or propane ... and do you know if the range is set up correctly for the gas type you have? It makes a big difference.

While building we rented a house and the new outdoor grill could barely warm up a piece of meat. Landlord sent someone out and the burner was set up for NG and not for the propane that was available at the house. Huge difference after and the grill had no problem heating up to 500F in no time and actually grilling food.
Nancy Hudanish Pinto thanked chispa
dadoes
last year
last modified: last year
Nancy Hudanish Pinto: "Our 48” unit is 1 yr old (2022), this is a replacement for a previous 48” that was in pristine condition, but the circuit board went bad and couldn’t be replaced because the circuit boards were no longer being manufactured."

There are services that repair appliance control boards. It's too late now but were you unaware of the repair possibility? Or did you investigate it at the time and none of them could handle the boards involved?
Nancy Hudanish Pinto thanked dadoes
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mmme - I'm very sorry you're experiencing disappointing performance for this important appliance. A couple more thoughts - my apologies again if they're too basic and you've already thought of them - just trying to cover all the bases: 1. When I'm boiling any quantity of liquid and I'm in a hurry, I'll often split it between two pots on two burners - if it's water we're talking about, it isn't necessary to wash the second pot so no extra cleanup. 2. A possible way to improve stir-fry/saute performance on a lower BTU burner is to use a cast iron skillet and let it sit on the burner on high for 5 or more minutes till it's really smokin hot. Do not put the oil in the pan beforehand or it may hit its smoke point; add the oil very carefully right before adding the food which will normally cool the pan enough that the smoke point isn't reached. Because cast iron is a great conductor and retains heat well, you can get very good searing/browning during those first 3-4 minutes (after that not as good but a lot of times it's enough to get your desired results). If you happen to be using the oven at the same time the cast iron skillet can be pre-heated in the oven and will then only take a few extra minutes on the burner to get good and hot (please remember not to grab the handle with your bare hand after it's come out of the oven - been there/done that/not fun!) 3. Would you want to consider, down the road & depending on space & layout, purchasing a single induction burner to take care of those times when you really need the extra speed & BTUs? Best wishes - hope at least one of these was helpful. RE Whoever heard of making pasta or corn on the cob with a covered pot of water? You don't have to make the pasta or corn with a covered pot, just use the cover to speed up the boiling process (which is generally what takes the most time and energy). This helps insure that you are cooking with closer to the same amount of liquid you started out with and does also save a little energy & help keep your kitchen from getting as hot and humid in the summer.
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Nancy Hudanish Pinto
Original Author
last year
last modified: last year
We have natural gas and this is a direct replacement for the exact same range that was here previously. All lines are the same and gas is strong and oven heats pefectly fine (oven is also gas, not duel fuel) although the oven often gets hotter than the temperature set.

I was unaware as to the abilty of having the board repaired as Thermador was here several times and tried to use newer boards, disposed of the non working one and then, after several visits told us we had no other options but to get a new unit. He seemed pretty certain from the start that getting a new unit was the only option but tried anyway. It was such a shame since the unit still looked brand new in every way.

I will also say that the stainless steel being used on this newer model is odd and will not clean and polish like the older model. It's as if it's some sort of cheap stainless steel or inferior product is being used. I saw this as a complaint on another Thermador post. Just putting this all out here to keep others informed that might consider purchasing. I wish I had done more research before purchasing this newer unit.
Nancy Hudanish Pinto
Original Author
last year
Anyone would honestly think you were crazy if you told them that you couldn't get a quart of water to boil after 30 minutes of being on the burner. I'm not over shooting the flame beyond the pot, I have tried other pots, it's a mystery to me.
lucky998877
last year
Sounds crazy. I have a 48" (different brand) and it has 2 double ring burners that get water boiling quickly. Do you have double ring burners, what is the highest BTU listed for your largest burner?
Nancy Hudanish Pinto thanked lucky998877
lucky998877
last year
Ok, I looked it up for you. You have 2 18,000 BTU burners, mine are 15,500 so something is definitely really wrong!
Nancy Hudanish Pinto thanked lucky998877
Nancy Hudanish Pinto
Original Author
last year
Thank you! I have 6 burners and the BTU’s are all different. I will be asking at my service appt to see of they can test the output
wdccruise
last year
"Does anyone have difficulty getting a pot of water to boil on their gas top Thermador range?"

"its also 100x worse if the oven is on and the vent is blowing the flames."

The natural gas requirements are in the Pro Harmony and Pro Grand installation manuals.

When adding or changing appliances, Washington Gas (natural gas supplier Washington, DC region) requests you determine the gas requirements for all gas appliances (range, water heater, HVAC unit, etc.) and complete a form so that it can determine whether your gas service is sufficient and recommend remediation if it isn't.
PRO
Sabrina Alfin Interiors
last year
Sounds like it might be a plumbing issue. And if not that, then you might need new parts for the burner. I have a Thermador gas cooktop and wall oven and while I don't have the boiling water issue, I do have an issue with how long it takes to pre-heat the oven, even using the "Fast Preheat" setting.

Talk to the service guy to see what he says. And if you can't figure this out, I'd seriously consider replacing the cooktop with induction.

Thermador range - can’t boil water

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chispa

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Thermador range - can’t boil water

Comments (9)

chispa

dadoes

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lucky998877

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