Troubleshooting: DOT

Here are answers to the most common technical support questions about DOT.


 

My DOT thermometer is not working. All I seem to get is a flashing “NO PROBE”. The probe is inserted correctly. Any clue what’s wrong?

It is possible the probe has failed. If this has happened, a new probe will resolve the issue.

The most common reasons for probe failures include:

  • The probe has been used outside of the recommended temperature range. Keep the probe cable away from oven elements, flames, coals, grill or oven racks—all of which can reach temperatures far higher than 700°F (even if an oven/smoker is set lower).

  • The cable got wet. When you’re cleaning your probe, you can carefully wipe down the stainless steel cable as long as you don’t submerge it in liquid. You might find it easiest to clean the cable with our probe wipes.

  • Excessive wire kinking.

Pro-Series Probes Percautions

Avoid grilling or broiling with your probes, as these high-heat methods usually involve temperatures above your probe’s specifications. Instead, we recommend that you use an instant-read thermometer – such as a Thermapen or a ThermoPop – while grilling or broiling.

Here is an article with great suggestions on how to prolong the life of your Pro-Series Probe.

Here is an article that explains the difference between grilling and BBQ.

Here is an article that discusses how to protect your probes while grilling.

As a note: Pro-Series probes come with a 6-month warranty. Please let our Tech Support team know if you need help with yours. 


 

I have a DOT which I purchased more than 2 years ago and has worked great until recently. Now, it displays 98 degrees in a 74 degree room. Can you help?

We would suggest replacing your DOT’s batteries, as a battery change typically fixes these types of symptoms.

If installing new batteries doesn’t fix it, it is possible that the probe needs to be replaced. Any of the Pro-Series probes will work with your DOT.

If these solutions do not help, please let our Tech Support team know.


 

My DOT is displaying an LLL (or HHH) error. What does this mean?

There are several reasons your DOT may display either an LLL or HHH error, the most common being that the probe wire was damaged or broken.

If your Pro-Series probe was exposed to temperatures above or below its temperature range (-58 to 572°F  or -50 to 300°C), you will see one of these errors. LLL means that the probe was exposed to temperatures below its range and HHH means that it was exposed to temperatures above its range.


 

I plugged the probe into my DOT and nothing happened. The display is still dark.

First, make sure that you have turned your DOT on. The On/OFF button is on the back of the unit.

If that does not work, we would suggest replacing your DOT’s batteries, as a battery change typically fixes these types of symptoms.

If this does not work, please let our Tech Support team know. They will be happy to help you.


 

My DOT’s audible alarm no longer works. Is there anything I can do?

We would suggest replacing the batteries to see if it resolves the issue. If that does not help, please contact our Tech Support team.


 

I received a DOT as a gift about a year ago and it recently started reading incorrect temperatures. Today, it started saying “NO PROBE” when there was a probe attached. What do I do?

It may be time to replace your DOT’s batteries. If new batteries do not resolve the issue, it is possible that the probe failed. If this is the case, a new probe should fix it.

If these two steps don’t resolve the issue, please contact our Tech Support team so they can assist you further.

As a note: Pro-Series probes come with a 6-month warranty. Please let our Tech Support team know if you need help with yours. 


 

My DOT is not reading food temperatures accurately. What’s wrong?

Judging the accuracy of your DOT in food or air can be difficult. The best way to verify the accuracy of a probe or digital thermometer is with a proper ice bath test. This can be done quickly and easily at home with the instructions found here.

If your DOT’s Pro-Series probe is accurate, it will read within ± 1.8°F of 32°F (30.2 to 33.8°F). If it is reading accurately in this test, you can rest assured that it is reading accurately in food and at higher temperatures.

Please contact our Tech Support team if you need further assistance. They are always happy to help.


 

Last night, as I monitored some steaks I was searing on the grill with my DOT, something went wrong. I think I may have gotten the probe too hot.

Now, when the probe is inserted into the DOT, it reads a temperature very briefly before a “NO PROBE” error pops up. Is the probe ruined?

It sounds like your probe failed as it was exposed to the very high temperatures that accompany grilling.

  • The Pro-Series probe that comes with DOT has an operating range of -58 to 572°F.
  • Flare-ups associated with grilling can easily reach temperatures above 1000°F, which can damage the probe.

This is why we we don’t recommend Signals for grilling unless you protect your probes. It was designed to track temperatures over an extended period of time with moderate-heat cooking methods such as smoking meat, oven-roasting, deep-frying, homebrewing, and Sous Vide.

Instant-read thermometers, such as a Thermapen MK4 or a ThermoPop, are the best choice for monitoring temperatures when you are using high-heat cooking methods such as grilling or broiling.

Here is an article that explains the difference between grilling and BBQ.

If you need a new probe, any of our Pro-Series probes will work with your DOT.

As a note: Pro-Series probes come with a 6-month warranty. Please let our Tech Support team know if you need help with yours. 


 

Why did my DOT melt?

It is likely that your DOT thermometer (the body) was exposed to temperatures above its operating range, which is 32 to 122°F (0 to 50°C).

The DOT’s thermometer does not go in the oven when you use it, as high heat will melt it. It should not be attached directly to a smoker or grill.

Instead, insert the Pro-Series probe’s tip into the food you are tracking, connect the other end of the probe to DOT thermometer, and place DOT outside of the oven/smoker (usually on a countertop). Place the food in the oven/smoker and close the door on the cable.

Closing the oven door on the probe’s cable won’t hurt it. Because the cable is thin, your oven, grill, or smoker won’t lose any heat

DOT


 

I just received my new DOT. I can’t change the temperature. It constantly reads 76°F. What do I do?

Could you check to see if you have removed the screen’s protective film? If you have and your DOT is still not working correctly, please contact our Tech Support team.


 

How should I care for my DOT?

The directions for caring for your DOT are found here.


 

What is the warranty of the probe that comes with my DOT? I think mine isn’t working correctly.

Pro-Series probes come with a 6-month warranty. Please let our Tech Support team know if you need help with yours.


 

DOT Warranty Terms

Your DOT has a 2-year warranty. You can read more about the warranty terms here.


 

Have more questions?

If you have any additional questions or concerns, please contact our Tech Support team by emailing techsupport@thermoworks.com or by calling 1-800-393-6434.

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