What causes Heating Ineffective on Johnson Controls Thermostat?
If your Johnson Controls Thermostat displays 'Heating Ineffective,' it means the Supply Air Temperature has not increased above the configured Supply Air Temperature Alarm Offset while heating has been active for at least the Supply Air Temperature Alarm Delay. Verify that the heating elements on the rooftop are functioning properly.
Why TEC3000 zone temperature doesn't change fast enough?
If the TEC3000 zone temperature does not change fast enough compared to the measured zone temperature from a verification device, it is because the TEC3000 is configured by default for larger spaces with normal-sized equipment when a proportional device is active. To resolve this, select Control Setup > Tuning > Equipment Size > Oversized.
What to do if my Johnson Controls Controller displays Changeover Fail?
If your Johnson Controls Controller displays 'Changeover Fail', the Supply Temperature Sensor is not installed, has failed, or has been disconnected, and the TEC can no longer detect changeover mode to cool or heat. Follow the same steps as for a Supply Temp Fail alarm to resolve this.
What to do if Johnson Controls TEC3000 shows Supply Fan Fault?
If your Johnson Controls Thermostat displays 'Supply Fan Fault', it means the Supply Fan Status configured for either BI1 or BI2 has not proved within the configured Fan Alarm Delay. To resolve this: 1. Verify that the Supply Fan is operating when turned on. 2. Verify that the Supply Fan Status wiring is connected correctly.
What causes Supply Fan Runtime Limit Extended on Johnson Controls TEC3000?
If your Johnson Controls Thermostat displays 'Supply Fan Runtime Limit Extended,' it means the Supply Fan Runtime has exceeded the configured Supply Fan Runtime Limit. To address this: 1. Service the Supply Fan. 2. Reset the Supply Fan runtime.
How do I fix a 'Firmware Mismatch' error on my Johnson Controls Controller?
If your Johnson Controls Controller displays 'Firmware Mismatch', it means a previous upgrade or downgrade hasn't completed. If it's due to an incomplete upgrade, upgrade the TEC3000 to the latest released version, then upgrade it to the current version again. If it's an incomplete downgrade because the previous version is no longer supported, reboot the TEC3000 to clear the fault.
Why is the cooling ineffective on my Johnson Controls Fan?
If cooling is ineffective on your Johnson Controls Fan, it means the supply air temperature hasn't decreased below the configured Supply Air Temperature Alarm Offset while cooling has been active for at least the Supply Air Temperature Alarm Delay. Verify that the cooling elements on the rooftop are functioning properly.
How to fix rapid cycling with PID on my Johnson Controls Thermostat?
If the staged equipment cycles too rapidly or slowly on your Johnson Controls Thermostat when the PID is running, it may be due to the control band around the setpoint being set incorrectly. Verify that the equipment's minimum on/off times are set correctly. If the default deadband doesn't provide the required temperature control, set 'Temp Control Setup' to 'Deadband Override' and adjust the 'Deadband' parameter to your preferred value.
Why does my Johnson Controls Controller display Idle with Cooling/Heating Unavailable due to Control Mode?
If your Johnson Controls Controller displays 'Idle' with a Unit Status of 'Cooling Unavailable due to Control Mode' (despite being above the cooling setpoint) or 'Heating Unavailable due to Control Mode' (despite being below the setpoint), it indicates that the Control Mode is set incorrectly. If the Control Mode is set to Cooling Mode, but the controller is requesting heating, change the Control Mode to Auto or Heating. If the Control Mode is set to Heating Mode, but the controller is requesting cooling, change the Control Mode to Auto or Cooling.
Why does Johnson Controls Thermostat provide an error when trying to upgrade firmware?
If your Johnson Controls Thermostat provides an error when trying to upgrade firmware, it means that the firmware on the USB drive is below the minimum required version (Error code 1025). Use firmware version 3.0.2.xxxx (for networked models) or 2.0.2.xxxx (for wireless models) or higher. A reboot is required to clear the Firmware Mismatch fault that occurs.
Guidelines for selecting the best placement for controller performance.
Step-by-step guide for physically installing the thermostat controller.
Warnings about shock hazards, property damage, and ESD during wiring.
Instructions for wiring terminals and setting the bus end-of-line switch.
Guide for using the USB port for upgrades, backups, and restoring settings.
Lists common faults, their causes, and recommended solutions.
Detailed steps to diagnose and fix specific operational problems.
General| Brand | Johnson Controls |
|---|---|
| Model | TEC3000 Series |
| Category | Thermostat |
| Language | English |
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