State Transition Logic // Little Rock, AR

Switch
The State.

Is your heat pump stuck in cool mode? We specialize in reversing valve replacement and defrost board diagnostics to restore your home's thermal balance.

Little Rock Hub 100 S University Ave, AR 72205
Heat Pump Engineering

Reversing Valve

Component_Status: Stuck

"The heat pump wouldn't switch to heat during the coldest night. These guys diagnosed the reversing valve and had it fixed by morning."

Failure Analysis

Diagnostic Matrix.

Stuck in Cool

When the reversing valve solenoid fails or the internal slide gets stuck, your heat pump remains in cooling mode regardless of the thermostat setting.

Defrost Board

A faulty defrost board can cause your outdoor unit to freeze over, preventing the heat pump from extracting heat from the air effectively.

Logic Errors

Intermittent switching or strange noises often indicate a failing solenoid coil or communication errors between the board and the valve.

Hardware Inventory

Precision
Valves.

We stock high-performance 4-way reversing valves and universal defrost control boards compatible with all major heat pump brands. Our components are rated for extreme thermal cycling.

OEM Valves

Factory-spec replacements for seamless integration.

Smart Boards

Adaptive defrost logic for maximum efficiency.

VALVE_CORE_X

Little Rock Engineering Lab

Restore
The Flow.

Contact our Little Rock thermal team for immediate heat pump diagnostics and valve replacement.

Thermal Dispatch

(844) 314-2390

Little Rock Hub

100 S University Ave Little Rock, AR 72205