Interklima High wall unit
II/IO - SCV1
38
PROBLEM
5. Power on but outdoor fan will
not function
6. Power on but indoor manual
key will not function
7. Power on but indoor display will
not function
8. Indoor up-down louver will not
function
9. Indoor left-right swing will not
function
10. Power on but indoor fan lost Hi
or Med or Low speed
11. Condenser fan short cycles on
cooling
12. Condenser fan short cycles on
heating
13. High discharge pressure cooling
cycle
14. High discharge pressure heating
cycle
15. System not heating
16. System not cooling
17. High suction/low
discharge pressure
CHECKLIST
De-ice sensor (heating)
Ambient temp low
Outdoor sensor
Indoor coil too hot
Fan relay on PCB
Faulty motor
Connector plug
Faulty switch
Connector plug
Faulty display
Reset switch position
Handset control
Faulty stepping motor
Connector plug
Handset control
Faulty swing motor
Connector plug
Relay on PCB
Handset control
Faulty motor
Connector plug
3 relays on PCB
Outdoor sensor
Unit location
Indoor sensor
Dirty filter
Indoor sensor faulty
Dirty condenser coil
Gas overcharge
Air recirculation
Faulty motor
Cap tube blocked
Indoor sensor faulty
Dirty evap coil
Dirty filter
Gas overcharge
Faulty indoor motor
Cap tube blocked
Reversing valve coil
PCB relay
Low gas charge
PCB relay
Low gas charge
Reversing valve sticking
REMEDY LIST
Wait for defrost to terminate
Check gas pressure
See control functions
Clean filter
Replace relay or PCB
Replace motor
Replace or repair
Replace switch or PCB
Replace or repair
Replace display or PCB
Correct or operate once
Change function
Replace
Replace or repair
Change function
Replace
Replace or repair
Replace relay or PCB
Change function
Replace
Replace or repair
Replace relay
See control functions
Check for air recirculation
See control functions
Clean
Replace
Clean
Reduce charge
Move unit
Replace
Replace
Replace
Clean
Clean
Reduce charge
Replace
Replace
Replace
Replace or change PCB
Add gas and leak test
Replace or change PCB
Add gas and leak test
Replace