Coway CHP-671R/L, Руководство по обслуживанию, Страница: 50 / 74

Fault diagnosis
4-18 Coway co., Ltd

Power failure protection function
Function Explanation
1.
Power failure
protection
function
• If power turns OFF and then ON again during regular operation, the HOT/COOL
selection mode settings and temperature level settings (hidden function) from
before OFF are maintained.

Test mode (time decreasing function)
Function Explanation
1.
Test mode
• If power is connected and the COOL selection switch is pressed within 5 seconds
after the FND flashes twice, test mode is entered.
- If the selection switch is pressed after initial power connection, test mode is not
entered.
• Cold water/hot water/water level upper bar flashes → upper + middle flashes
→ upper + lower flashes → upper + middle flashes, upper bar flashing
repeats twice.
• If test mode is active, the delay time of 5 minutes for compressor restarting is
canceled.
• The heater starts 1 second after compressor operation in the heater, compressor
differential control function.
• Water overflow detection delay time (20 seconds) and water level detection delay
time change to 1 second
• In test mode, the compressor operates at less than low water level when the
compressor is ON
• If power is reconnected or 30 minutes elapses after test mode operation, test
mode is canceled and normal mode is entered.