Coway CHP-671R/L - Page 50

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+middle+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.