Samsung ERV RHF025EE Service Manual page 14

3. Alignment and Adjustments
3-1 Error Mode and Check Method
No Error Mode
Indoor temperature sensor
1
(Short/Open)
CO sensor
2
2
(Short/Open)
3 EEPROM error
Tracking error of MASTER
ventilator (After 3 minutes of
4
tracking, SLAVE ventilators
can not be detected.)
Communication error,
System failure by
5
communication error after
tracking
Outdoor temperature sensor
6
(Short/Open)
SA (SUPPLY AIR)
7
Fan Motor error
EA (EXHAUST AIR)
8
Fan Motor error
Samsung Electronics
LED Display
• Check the temperature sensor WIRE disconnection or
• Check PCB PATTERN OPEN/SHORT
• Check the CO
• Check PCB PATTERN OPEN/SHORT
• Check option setup SWITCH (K8)
• Check address setup SWITCH
• Check WIRE disconnection
• Check address setup SWITCH
• Check WIRE disconnection
• Check temperature WIRE disconnection or connection
• Check PCB PATTERN OPEN/SHORT
• Check MOTOR
• Check PCB connection
• Check WIRE disconnection
• Check MOTOR
• Check PCB connection
• Check WIRE disconnection
Measures
connection conditions
sensor WIRE disconnection or
2
connection conditions
• Check PCB PATTERN OPEN/SHORT
• Check CO Sensor
2
conditions
3-1