RUUD UA16AZ ENDEAVOR LINE Running No Cold Air
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
89%
CONF
|
Inverter Control Board
The inverter board is the primary driver for the variable-speed twin rotary compressor. If the board's power module fails, the unit's logic and fans may continue to operate, but the compressor will not receive the 3-phase DC power required to rotate. This results in the system 'running' without any refrigerant compression or cooling capacity.
|
VIEW ON AMAZON
#CommissionsEarned
|
|
6%
CONF
|
Electronic Expansion Valve (EEV) Coil
The UA16AZ utilizes an EEV for precise refrigerant metering. If the stepper motor coil on the EEV fails, the valve may remain in a closed position, preventing refrigerant flow through the evaporator coil despite the compressor running, which results in zero heat absorption from the home.
|
VIEW ON AMAZON
#CommissionsEarned
|
|
5%
CONF
|
Compressor Contactor
Even in modern inverter systems, a mechanical contactor is often used to provide line voltage to the inverter drive. Pitted or oxidized contact points can prevent high-amperage current from reaching the inverter board, meaning the low-voltage control circuits (fans/thermostat) work, but the high-voltage compressor drive remains inert.
|
VIEW ON AMAZON
#CommissionsEarned
|
DIY Repair Guide
Watch exactly how to replace the Inverter Control Board.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.