Safety first: Disconnect power before accessing internal components.

Locate the thermistor: On Panasonic dehumidifiers, the room temperature sensor is usually clipped near the air intake grille or on the evaporator coil frame, connected by two small wires to the main PCB.
Check connection: Ensure the thermistor plug is fully seated on the main PCB. Reseat it to clear poor contact.
Inspect wiring: Look for cuts, crushed insulation, or corrosion along the thermistor leads. Repair or replace damaged wiring.
Measure resistance: With the unit unplugged, disconnect the thermistor and measure its resistance at room temperature (around 20–25°C). Compare to Panasonic specifications (commonly 5–15 kΩ at 25°C). A reading of near 0 Ω (short) or infinite (open) indicates a bad sensor.
Replace thermistor: If out of spec, install a Panasonic‑specified indoor thermistor, routing the leads away from sharp edges and hot components. Clear the code by unplugging for several minutes and retesting.

Unit stops dehumidifying and shows H14; compressor does not run.

Possible Causes