Samsung ERV - Alignment and Adjustments; Error Mode and Check Method

Samsung Electronics 3-1
3. Alignment and Adjustments
3-1 Error Mode and Check Method
Error No Error Mode Measures
E108 Address setting duplication error · Check the overlapping MAIN address within same repeater.
E121
Indoor temperature sensor
error(SHORT/OPEN)
· Check connector disconnection of CN41 & connection conditions.
Check a voltage of both ends CN41 PIN#1,2 (10 Ꮒ at 25 degrees)
A Check of Indoor temperature is possible when KEY2 switch is entered 3 times.
E139
CO sensor error(SHORT/OPEN)
· Check connector disconnection of CO sensor and connection conditions.
A Check of
CO sensor value is possible when KEY2 switch is entered 5 times.
E162 Indoor EEPROM H/W error · Check connection conditions of EEPROM SUB PBA.
E163 Indoor option setting error · Need to reset option.
E183 Outdoor Humidity Sensor Error(ERV)
· Check connector disconnection of humidity sensor and connection conditions.
· A Check of outdoor humidity value is possible when KEY2 switch is entered 8 times.
Set operates normall regardless of error.
E198
Thermal fuse open error in power ther-
minal block
· Check wire connection conditions of CN140 connector.
· Check conditions of wire connected power terminal block.
(occurrence of error at open)
E202
System down caused by communica-
tion error
· Check disconnection of communication wire.
E221
Outdoor temperature sensor
error(SHORT/OPEN)
· Check connector disconnection of CN41 and connection conditions.
· Check a voltage of both ends CN41 PIN#3,4 (10 Ꮒ at 25 degrees).
A Check of indoor temperature is possible when KEY2 switch is entered 4 times.
E490
Prohibition of operation under outside
& indoor temperature 0 degrees
· Set stop operates normally when indoor and outdoor temperature is under 0 degrees.
· Prohibition of operation for set protection.
E561 Supply air(SA) fan motor error
· Check connector disconnection of CN74 and connection conditions.
· A Check of supply air fan rpm is possible when KEY2 switch is entered twice.
E562 Exhaust air(EA) fan motor error
· Check connector disconnection of CN73 and connection conditions.
· A Check of exhaust air fan rpm is possible when KEY2 switch is entered once.
E654 Inside damper error · Check connector disconnection of CN72,CN52 and connection conditions.