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Gregory ChungSep 12, 2025
What to do if my IBC AHU 800 cool air temperature sensor is not working?
- AAmber PerezSep 12, 2025
If the cool air temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
What to do if my IBC AHU 800 cool air temperature sensor is not working?
If the cool air temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
What to do if my IBC AHU 800 Air Handlers thermostat shows a fault?
If your thermostat is showing a fault, it could be due to simultaneous heating and cooling calls. Ensure that the heating and cooling leads from the Nest thermostat are not crossed. Also, there is a known issue with some thermostat models over 3 years old where the backing plate allows a short, signaling an unintended call for cooling.
What to do if my IBC Air Handlers fan has no RPM?
If there is no fan RPM detected, check if the fan is turning or disconnected. Also, check the fuse. Use a meter to verify that 120V is present on the external connection to the board. If 10V is not coming from the fan, it is not receiving 120V. Check the 10V signal on the web app.
What to do if the IBC AHU 800 door is open or there is no fan signal?
If you receive a 'Door Open / No Fan Signal' error, first check if the service door is open or if the door switch is faulty. Also, check if the harness is disconnected and if the fan is turning.
What to do if my IBC AHU 800 A/C is freezing?
If freezing is detected in the A/C coil, the coil needs to defrost. Refer to the manual for the air conditioner for details on how to prevent freezing.
What to do if my IBC AHU 800 dehumidifier is freezing?
If freezing is detected in the dehumidifier appliance, the coil needs to defrost. Refer to the manual for the dehumidifier for details on how to prevent freezing.
What to do if my IBC AHU 800 Air Handlers inlet temperature sensor is not working?
If the inlet temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
What to do if my IBC AHU 800 air out temperature sensor is not working?
If the air out temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
What to do if my IBC AHU 800 Air Handlers A/C temperature sensor is not working?
If the A/C temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
What to do if my IBC AHU 800 outdoor temperature sensor is not working?
If the outdoor temperature sensor is not working, check the sensor. For resistance reading, see Table 13.
General| Brand | IBC |
|---|---|
| Model | AHU 800 |
| Category | Air Handlers |
| Language | English |
Explains danger, warning, and caution symbols used in the manual.
Crucial guidelines for safe installation, operation, and maintenance of the appliance.
Provides BTU/hr heating capacity data for different models and water flow rates.
Details physical dimensions and air opening sizes for various AHU models.
Highlights key features and advantages of the IBC air handling appliance.
States compliance with relevant industry standards and codes for the appliance.
Guidelines for selecting an appropriate installation location for optimal performance and noise reduction.
Instructions on orienting and securing the air handling unit in various configurations.
Recommendations for sizing, sealing, and installing ducting systems for proper airflow.
Details on connecting the AHU to boilers and tankless water heaters, including sizing.
Guidance on wiring thermostats, pumps, and line voltage for proper appliance operation.
Illustrative scenarios for wiring different heating and cooling configurations with the AHU.
Describes how the AHU functions under different modes like heating, cooling, and heat pump.
Explains LED indicators and using the IBCconnect app for monitoring and configuration.
Detailed steps for setting modes, parameters, and fan speeds via the IBCconnect app.
Guidelines for owners and contractors on routine checks and filter replacement.
Step-by-step instructions for replacing key components like fan assembly, coil, and control board.
Details on testing and understanding temperature sensor resistance values for diagnostics.
How to use the app to identify and resolve warnings, errors, and faults.
Lists potential error messages and their corresponding solutions for quick issue resolution.
Procedure for checking voltage levels on the appliance's control boards.
Troubleshooting steps for when the appliance's pump fails to activate.
Steps to resolve intermittent wireless connections for the IBCconnect app.
Information on the WiFi password and troubleshooting network detection for the IBCconnect app.
Procedure for exporting diagnostic data to a USB stick for analysis.
