Sharp System Messages Error Codes

Complete Sharp System Messages Guide

This guide explains all Sharp System Messages error codes (CH series) with simple troubleshooting steps to help you identify and fix common issues safely before calling a technician.

LOC
Child Lock Active
  • Press and hold the lock/unlock button for a few seconds.
  • Refer to the control panel instructions for your model.
  • Perform a power reset if the lock does not clear.
  • Check if any buttons are stuck or jammed.
PF
Power Failure Detected
  • Check household power supply.
  • Inspect circuit breaker or fuse box.
  • Wait until power stabilizes before restarting.
  • Ensure stable voltage supply.
HOT
Overheat Warning
  • Turn off the appliance and allow it to cool completely.
  • Check ventilation openings for blockage.
  • Ensure fan system is operating correctly.
  • Restart only after temperature normalizes.
ERR
General System Error
  • Power cycle the appliance.
  • Check wiring and control panel connections.
  • Reset system using power restart.
  • Contact service technician if issue persists.
RESET
System Restart Required
  • Disconnect power for 5–10 minutes.
  • Reconnect and restart the appliance.
  • Verify if the message clears.
  • Inspect control board if error continues.
COOL
Cooling Cycle Active
  • Allow appliance to complete cooling cycle.
  • Avoid frequent door opening.
  • Ensure airflow is not blocked.
  • Wait for temperature stabilization.
E1
Sensor Communication Fault
  • Inspect sensor wiring connections.
  • Check for loose or damaged connectors.
  • Restart system after power reset.
  • Replace sensor if issue persists.
E2
Airflow Blockage Detected
  • Check and clean air vents.
  • Ensure filters are not clogged.
  • Remove any obstructions near airflow path.
  • Restart appliance after cleaning.
E3
Motor Overload Protection
  • Turn off appliance and allow cooling.
  • Check for mechanical obstruction.
  • Reduce continuous usage time.
  • Restart after cooldown period.
E4
Fan System Error
  • Inspect fan blades for blockage.
  • Check fan motor wiring.
  • Ensure fan rotates freely.
  • Replace fan motor if faulty.
E5
Temperature Detection Fault
  • Allow unit to stabilize temperature.
  • Check environmental conditions.
  • Ensure proper airflow and ventilation.
  • Restart after 10–15 minutes.
E6
Control Board Communication Error
  • Power cycle the system.
  • Inspect wiring harness connections.
  • Check for moisture or corrosion on PCB.
  • Replace control board if needed.
E7
Power Supply Instability
  • Check voltage stability.
  • Avoid using extension cords.
  • Inspect power cable condition.
  • Reset appliance after stabilizing power.
E8
Memory / EEPROM Error
  • Disconnect power and restart system.
  • Check control board for damage.
  • Inspect memory chip connections.
  • Replace PCB if error persists.

Frequently Asked Questions


Why does my Sharp System show ERR or system error messages?
ERR messages usually indicate sensor faults, airflow restrictions, overheating protection, compressor or motor communication errors, or control board issues. Turn off the unit, unplug it for a few minutes, then restart. Check ventilation, door seals, and power stability.
Why does my Sharp System stop working during operation?
This is often caused by thermal protection, motor overload, blocked airflow, or internal system faults. Allow the unit to cool, clear any obstructions, and restart after a few minutes.
Why does my Sharp System not turn on?
Check the power outlet, breaker, power cord, and internal fuse if applicable. Ensure all components are properly installed and the system has stable voltage supply before restarting.
Why does my Sharp System lose performance or cooling/operation strength?
Reduced performance is commonly caused by clogged filters, restricted airflow, dirty coils, weak fans, or refrigerant or mechanical issues depending on the model. Clean all filters and ensure proper ventilation.
Why does my Sharp System make unusual noises?
Unusual noises may come from fan motors, compressors, loose internal components, or debris inside the unit. Turn off the system and inspect for obstructions before restarting.
Why does my Sharp System leak water or moisture?
Water leakage is usually caused by blocked drainage, frozen evaporator coils, clogged filters, or improper installation. Clean drainage paths and ensure the unit is level.
Why does my Sharp System produce bad odor during operation?
Odors are typically caused by mold buildup, dirty filters, stagnant moisture, or debris inside airflow channels. Clean filters and interior components regularly.
Why does my Sharp System keep shutting off randomly?
Random shutdowns may be caused by overheating protection, unstable power supply, sensor faults, or internal control board issues. Ensure stable voltage and clean airflow pathways.
How do I reset my Sharp System messages?
Turn off the system and disconnect power for 5–10 minutes. Reconnect power and restart the unit to clear temporary errors and reset internal controls.
Why does my Sharp System show overheating warnings?
Overheating warnings occur when airflow is blocked, filters are clogged, or the system is running under heavy load. Clean filters and allow the unit to cool completely before restarting.
When should I service my Sharp System?
Service is recommended if errors persist, performance remains weak after cleaning, overheating continues, unusual noises occur, or the system frequently shuts down.
Important: Sharp System messages are safety features designed to protect internal components such as sensors, motors, compressors, fans, and control boards. If problems continue after troubleshooting, stop using the appliance and contact an authorized Sharp service center.