11
English
Appendix
Symptom During the Heat mode or the heater test run, the temperature on the heater does not increase.
Cause
1) Connection error
2) Outside temperature sensor error
3) Heater power connection error
4) Relay operation error
Replace the heater.
Check operation after connecting the
connector.
The connector is properly
connected between the heater
control box and outdoor unit
control box?
The outside temperature
sensor operates normally?
࣑ĘͱϩɇΧΧʀɇɵʪϩͱϩ˵ʪϩʪϑϩθЇ࣒
Yes
Ęͱ
Check for connection of the outside
temperature sensor or replace it.
Ęͱ
Yes
Check operation after connecting the heater
power.
The heater power is connected
properly?
Ęͱ
Yes
Replace the relay.
The relay operates normally?
Ęͱ
Yes
CAUTION
࡛ Be sure to maintain the base heater periodically because it has no error code.
Check items by error code