Troubleshooting by Remote Controller Display / LED Display
SiBE28-804
210
Troubleshooting
5.35 “
P4
” Malfunction of Radiator Fin Temperature
Thermistor
Remote
Controller
Display
P4
Applicable
Models
RZQ(S)71~140
Method of
Malfunction
Detection
Detection by open or short circuit of the radiator fin temperature thermistor during the
compressor stops operating.
Malfunction
Decision
Conditions
When open or short circuit of the radiator fin temperature thermistor is detected during the
compressor stops operating
Supposed
Causes
Faulty radiator fin temperature thermistor
Faulty outdoor unit PC board
Troubleshooting
* Refer to P228~229 for “Thermistor temperature/Resistance characteristics”.
Disconnect the connector
from (
∗
) on inverter PC
board, then check the
thermistor resistance at the
ordinary temperature.
Normal?
(Note)
Check LED on the
outdoor unit PC board.
Reset
Does the radiator
fin temperature thermistor
malfunction?
Is reset possible?
(
∗
)
Connector number
RZQ71~140C7,
RZQS71~140C7 (1
φ
),
X111A
YES
NO
YES
NO
NO
YES
Probe other factors than the malfunction.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Replace the outdoor PC board
(A2P).
Replace the outdoor PC board
(A2P).
Summary of Contents for FHQ100BUV1B x 2
Page 13: ...SiBE28 804 2 ...
Page 19: ...Model Name and Power Supply SiBE28 804 8 General Information ...
Page 29: ...Specifications SiBE28 804 18 Specifications ...
Page 33: ...Wired Remote Controller SiBE28 804 22 Remote Controller 1 2 Installation ...
Page 34: ...SiBE28 804 Wired Remote Controller Remote Controller 23 ...
Page 93: ...Outdoor Unit Fan Speed Control SiBE28 804 82 Functional Description ...
Page 131: ...Test Run and Operation Data SiBE28 804 120 Test Operation ...
Page 251: ...Troubleshooting by Remote Controller Display LED Display SiBE28 804 240 Troubleshooting ...
Page 277: ...PCB Layout SiBE28 804 266 Appendix ...
Page 297: ...RZQ100 140C7 RZQS125 140C7V1B SiBE28 804 286 Removal Procedure ...
Page 311: ...SiBE28 804 iv Index ...