HVH8 Compressor Troubleshooting
The HVH8 compressor operates with 3-phase variable frequency Pulse Width Modulation (PWM). To troubleshoot a fault related to the code…
Author: Kevin Thigpen
Technical Services Manager
North Alabama District
HVH8 Pressure Transducer Troubleshooting
A low-pressure transducer is used on the HVH8 to interpret PSIG and is used by the control board (AOC) for…
How to Check the CTB During a Cooling Call
The CTB (central terminal board) is a board that is often replaced unnecessarily. A CTB is simply a junction board…
Ion® Wireless Setup
Setting up a wi-fi controller is a task sometimes but the information provided will help speed this process up. The…
Ignition Proven Fault Code 6
An ignition fault is a common fault with a furnace and it could be caused by several things. For example,…
Furnace Setup Switch
This month I will be covering the Switch Setup on an 80 % Furnace N80VSL Model. The furnace control board…
2-Stage Heat Pump Wiring
This month, I am covering a topic I have had a few calls on. 2-stage heat pump systems not cycling…