Brand: Bosch Model Number: WTE86300US/08 Main Symptom: Washer is fine, Dryer has no lights no power What happens & when: Always
Error Code (if any):
Parts or tests already tried: Bosch 00600157 Limiter-Temperature OEM
Photos / video link:
Hi all. I have a Bosch Maxxis Stacked Washer Dryer, model number above. The washer works fine, but the dryer is showing no power, no lights, no error codes.
AppliancePros AI Support Tool pointed me toward either the door latch module or the Temp Limiter. The door latch seemed fine (plus I am pretty sure I get lights even when the door is open), so I disconnected the wiring connector for the Temp Limiter (kinda tough to get to) and tested it for continuity with my multimeter. It showed Open (“1”). AppliancePros AI Support Tool confirmed that it should show continuity, and that Open = Bad.
So I ordered a replacement part listed above, and received it today. Before installing, I figured I would test it also, and was surprised to see it also shows Open. So I think I have a bad replacement part, but Customer Service is telling me I have to run it past you guys before I can send it back…
I confirmed my meter baseline is at or near zero ~(0.02) when touching the leads together directly, and I tested the part multiple times, confirming I’m definitely on bare metal of the contacts. It reads “1” not even flickering, every time.
So I’m really just looking for a sanity check here… A Temp Limiter like this should show continuity (basically anything except “1”) when measuring resistance across it’s 2 contacts, correct?
Bosch 00600157 is an NTC thermistor / heater temperature sensor, not simply an on/off thermostat. Bosch identifies it as “Sensor-NTC Thermistor sensor (heater),” and it monitors dryer heater temperature.
Testing Bosch 00600157
Unplug the dryer.
Disconnect at least one wire from the 00600157 so you’re not reading through the dryer circuit.
Put your multimeter on Ω (resistance).
Measure across the sensor’s two terminals.
Continuity: Don’t judge this NTC solely by whether the meter beeps. Continuity mode only beeps below your meter’s particular resistance threshold. A good thermistor can have measurable resistance without triggering the continuity buzzer.
Resistance: You should get a finite resistance reading—not OL/open and not essentially 0 Ω. More importantly, because it’s an NTC, its resistance should decrease smoothly as the sensor gets warmer.
A useful bench test is to record the resistance at room temperature, then gently warm the sensing portion with your hand or warm air while watching the meter:
If it stays OL, reads nearly 0 Ω, jumps erratically, or doesn’t respond to temperature, suspect a bad sensor.
I couldn’t find an authoritative Bosch specification giving the exact expected resistance at a specified temperature for 00600157, so I wouldn’t condemn it based on an unverified resistance number. Bosch’s public parts page confirms the NTC type but doesn’t publish the resistance curve.
If you give me the dryer model/E-Nr. (for example, WTG86400UC/01), I can look for the service data and try to get you the exact Ω reading at 68°F/77°F and the hot-temperature reading.
For Bosch WTE86300US/08, I confirmed 00600157 is the heater NTC temperature sensor (diagram position 207). Bosch identifies it as an NTC thermistor, and the parts diagram specifically lists it for your /08 model.
Test 00600157
Unplug dryer → disconnect the sensor wires → measure directly across its two terminals.
OL / infinite resistance: bad — open sensor.
~0 Ω: bad — shorted sensor.
Resistance in the kΩ range: potentially normal.
Warm the sensor while watching resistance. Because it’s an NTC, resistance should decrease smoothly as temperature increases.
Let it cool and resistance should rise again.
One important correction from my previous answer: this dryer has two different temperature-related parts next to the heater:
Position
Bosch part
Function
207
00600157
Heater NTC temperature sensor
208
00617454
Temperature limiter
216
00613753
Additional thermistor/NTC
The model-specific parts information confirms all three.
So 00600157 should not be tested like the 00617454 limiter. The limiter is essentially a continuity/open-closed test; 00600157 needs an actual resistance measurement and temperature-response test.
I still haven’t found a trustworthy Bosch service specification giving the exact Ω-at-temperature chart for 00600157, so I don’t want to invent a number.
Send me the resistance you’re getting across 00600157 and the approximate room temperature (for example, 8.4 kΩ at 72°F). I can tell you whether the reading looks reasonable and we can also test 00617454 and the 00649016 heater while you’re in the
Hi Jeffrey. Thanks for your response. I’m reading “1” across the leads for both the old part as well as the new replacement part, which I just purchased from APP. This is why I had doubts. The reading is taken at room temp and at the 200 and 2k scale on my multimeter.
Based on your response, I’ll check again at a higher scale, and see if warming/cooling it has any effect, just to be thorough. But it sounds pretty clear that both the old part and replacement part are indeed bad.
As an aside, I did test the 2nd temp sensor which is located right next to this one, and did get what seems to me to be appropriate low resistance across it.
Thanks for your help. Any further advise is welcome.
Hi @Jeffrey_S_APP_Team. I tested again, using 20k range on the meter this time, rather than 200 and 2k range from last tests. I did indeed see the resistance drop smoothly as I warmed the part with a hair dryer, from about 19k at room temp, down to 5k (and still falling) after being heated for a minute or so.
So I now understand that the purpose of this part is actually to measure the temperature inside the dryer bin, and NOT to act as a overheat limiter. Sadly, APP’s AI support tool (called Max), guided me to this part by telling me this: "The other common culprit for a completely dead control panel is the temperature limiter (functions like a thermal fuse on this model) - if it trips, it can cut power to the control circuit entirely, not just the heat.".
It then provided me with a link to 00600157, as well as directions to it’s location on the dryer: "Your model's parts data places the temperature limiter in the Cabinet diagram section, right at callout 207, sitting next to the heating element (callout 206)."
It also later told me that a reading of OL indicated the part was bad.
AI is new and my bad for trusting blindly, but APP is putting this out there to guide DIYers like me. I hope someone at APP will read this and make a correction to Max, as it very clearly misled me down this path.
I tested the ACTUAL temperature limiter - part 00617454 at position 208 - and it tests good, so do you have any other suggestions that would cause a no lights, no power issue on the dryer only? The attached washer works fine.
Thanks for sharing this breakdown on ‘New Bosch 00600157 Limiter-Temperature OEM Part Shows Open Continuity’. I ran into a very similar issue when diagnosing performance bottlenecks and configuration conflicts on a related setup.
In my case, the root cause turned out to be how background buffers and sync handlers were being scheduled. I ended up testing a few different workarounds and utilities referenced on website to benchmark the response times under load, which helped identify where the latency spikes were originating.
If you’re still troubleshooting, checking the timeout flags in your local environment config might save you some debugging time. Hope this helps point you in the right direction!