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Frequently Asked Questions

Whether you have questions about your TAP Kiln Controller or the TAP Kiln Control Mobile app, find answers to your questions in the FAQs below!

Have a specific question in mind? Type in a few keywords to find detailed FAQ articles – or keep scrolling to browse:

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TAP Products

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Troubleshooting

Category: Troubleshooting

Below are explanations for each possible error message on the TAP II or TAP II Pro Controllers – as well as possible causes and troubleshooting steps…

TAP Kiln Controller Table of Errors

Message on ControllerError ConditionPossible CausePossible Solution
The maximum allowable temperature for this device has been exceeded, the firing is Aborted.Max Temperature ExceededProgrammed Temperature Too High

Relay Failure
Reduce programmed top temperature

Verify relay turns off when 12VDC removed
The controller has detected a failure to heat, the firing is Aborted.Failing to Heat for Too LongIntermittent/Shorted Thermocouple

Relay Failure

Element Failure

Reduced Power Available
Check thermocouple to ensure not broken or shorted

Verify relay turns off when 12VDC removed

Verify element is not open circuit

Verify source power
The controller has detected a ramp rate in excess of the programmed ramp rate, the firing is aborted. This could be due to a latched relay.Ramp Rate ExceededRelay Failure

Controller Output Failure
Verify relay turns off when 12VDC removed

Verify controller output 0VDC when in standby
The controller has detected a failure to cool. This firing is aborted.Failure to CoolRelay Failure

Controller Output Failure
Verify relay turns off when 12VDC removed

Verify controller output 0VDC when in standby
The controller has detected a high deviation from the setpoint, the firing is aborted. This could be due to a latched relay.High Temp Deviation From SetpointRelay Failure

Controller Output Failure
Verify relay turns off when 12VDC removed

Verify controller output 0VDC when in standby
The controller has detected a rising temperature while not actively firing. This could be the result of latched relays.Rising Temperature AlarmRelay Failure

Controller Output Failure
Verify relay turns off when 12VDC removed

Verify controller output 0VDC when in standby
No thermocouple is detected. Firing is Aborted.No Thermocouple Detected AlarmThermocouple Failure

Thermocouple Connection Bad

Controller Input Failure
Verify thermocouple is not broken

Verify thermocouple connection at the controller and isothermal block

Contact SDS Industries

Failed to initialize AD7799 Hardware.

Analog to Digital Converter Has FailedAnalog to Digital Converter Has FailedContact SDS Industries as a replacement controller will be needed

Please contact our Support Team with any questions. We’re happy to assist you! You can find more detailed troubleshooting steps here.

i received an error message error notification what does it mean if my controller says max temp notification failure to heat firing aborted failure to cool temperature deviation no thermocouple how do i troubleshoot what do i do my controller is saying how to fix how to resolve kiln shut off firing stopped temperature on my kiln error alerts errors

Category: Troubleshooting

Follow these steps to initiate the Touchscreen Calibration Utility for your original TAP, TAP II, or TAP II Pro Controller…

Please note: The process of recalibrating your touchscreen is the same for TAP, TAP II, and TAP II Pro, unless you’re using an original TAP Controller which hasn’t been updated to Software Version 5.0 or higher (in which case you can find instructions at the bottom of this page).

First, take a deep breath. We know it’s scary when your controller stops responding. But the vast majority of the time you just need to recalibrate your touchscreen. This only takes a few seconds.

Steps for Recalibrating Your Touchscreen

Turn your TAP Controller off and on again 3 times to automatically bring up the touchscreen calibration utility. When rebooting your controller, make sure you wait until the Warning Screen appears each time before restarting again AND you don’t acknowledge the warning banner. 

Once the Touchscreen Calibration Utility launches, tap and hold the 5 points that are indicated on screen via a yellow crosshair pattern that appears on the screen going clockwise from the upper left corner. You will move sequentially through the points from upper left to upper right to lower right to lower left to center. Tap and hold each point for approximately 5 seconds for best results. 

This video demonstrates how to use the TAP Touchscreen Calibration Utility:

YouTube video

If you still have no response after entering the Touchscreen Calibration Utility, please contact SDS Industries. 

Instructions for Original TAP Controller That Hasn’t Been Updated

If you’re using an original TAP Controller [discontinued] that hasn’t been updated to Software Version 5.0 or higher, we strongly recommend updating your controller software.  

However, you can still recalibrate your touchscreen in the meantime. First, tap around your screen until you find an area of the screen that responds. Then, tap and hold that point for ~30 seconds to launch the Touchscreen Calibration Utility, and follow the on-screen prompts. 

my controller won’t respond to touch stuck on date screen stuck on time screen stuck on date/time touchscreen not working touchscreen stopped working no response touchscreen quit working touchscreen is broken my kiln controller won’t respond to touch there’s no response on my kiln controller my kiln controller is stuck no touchscreen response won’t respond to touch
Category: Troubleshooting

Short Answer: Your controller forgetting time and date between reboots is indication that you need to replace your clock battery.

Does your kiln controller keep forgetting the date or time every time you restart your controller? That means the coin cell battery needs to be replaced.

You can find the clock battery on the back of your controller’s circuit board. Usually, you can access it by unscrewing the front display of your controller – though you may need to detach your wiring harness to create additional access to the back of your controller.

The controller will accept standard CR1220 or CR1225 batteries.

You can also purchase a replacement TAP Clock Battery on our online store.

my controller my kiln controller my tap kiln controller forgets the time between resets my controller keeps forgetting time and date my time and date keep resetting how do i get my controller to remember the time and date how to get my controller to remember the time and date do i need to replace my clock battery how to find my battery how do i replace my battery
Category: Troubleshooting

Short Answer: If your TAP Controller isn’t displaying any available WiFi networks, the most common cause is trying to connect to an unsupported network.

First, please verify that you’re attempting to connect to a supported network. Network requirements are below: 

  • 2.4 GHz wireless network with WEP, WPA, or WPA2 security. 
  • Unsecured networks are also supported – but networks that use a captive portal (a la many cafes and airports) are not. 
  • WPA3 and EAP networks are not supported. 
  • Signal strength of at least two bars is recommended (network latency or weak signal strength can negatively affect controller online status). 

If you’re still using an original TAP Controller, make sure your WiFi dongle is properly installed in the controller’s USB drive.

If you’re using a TAP II, TAP II Pro, or any other TAP Kiln Control Product, inspect the antenna and make sure it is unobstructed and pointed towards your router and doesn’t have any signs of damage. 

my controller isn’t showing any wireless networks no available wireless networks no wifi no available wifi no networks how do i fix no available networks what should i do if my controller isn’t showing
Category: Troubleshooting

Short Answer: Negative temperature readings are usually caused by incorrect thermocouple installation.

If your kiln reading negative temperatures, this is usually a relatively straightforward fix.

The thermocouple on your kiln is likely installed with polarity reversed. Please contact your kiln manufacturer for assistance in resolving this issue.

Additionally, you can find troubleshooting steps for thermocouple-related error notifications here.

why is my kiln reading negative temperatures what should i do what do i do what does it mean if my kiln is reading negative temperatures the temperatures on my kiln are negative the temperatures on my kiln is negative kiln temperature
Category: Troubleshooting

Short Answer: While “Failing to Heat” errors can be caused by a failed relay, there are additional possible causes…

A “Failing to Heat” error can be caused by a failed relay, but it can also be caused by:

  • Failed thermocouples
  • Faulty wiring
  • Inadequate supply power

The best course of action is to contact your kiln manufacturer for further assistance in troubleshooting the cause of the alarm.

You can find additional troubleshooting steps and explanations for other error messages here.

kiln failing to heat failing to heat firing aborted error message error notification not heating up kiln won’t heat

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SDS Industries

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