67
Disturbance in comfort
Alarm
nr.
Alarm text on the
display
Description
May be due to
261
High HWX temp
Temperature deviation on the heat exchanger
sensor (Tho-R1/R2) fi ve times within 60
minutes or for 60 minutes continuously.
■ Sensor does not work (see section
"Disturbances in comfort")
■ Insuffi
cient air circulation or blocked heat
exchanger
■ Defective control board in FDCW
■ Too much refrigerant
262
Inv. err.
When IPM (Intelligent power module) displays
FO-signal (Fault Output) fi ve times during a
60-minute period.
Can occur when 15V power supply to the
inverter PCB is unstable.
263
Inv. err.
Voltage from the inverter outside the parameters
four times within 30 minutes.
■ Incoming power supply interference
■ Service valve closed
■ Insuffi
cient amount of refrigerant
■ Compressor fault
■ Defective circuit board in FDCW
264
Communication error
with inverter.
Communication between circuit board for
inverter and control board broken.
■ Open circuit in connection between boards
■ Defective low pressure sensor
■ Defective circuit board for inverter in FDCW
■ Defective control board in FDCW
265
Inv. err.
Continuous deviation on power transistor for 15
minutes.
■ Defective fan motor
■ Defective circuit board in FDCW
266
Low refrig
Insuffi
cient refrigerant is detected upon star-up
cooling mode.
■ Service valve closed
■ Loose connection sensor (BT15, BT3)
■ Defective sensor (BT15, BT13)
■ Too little refrigerant
267
Inv. err.
Failed start for compressor
■ Defective circuit board in FDCW
■ Defective control board in FDCW
■ Compressor fault
268
Inv. err.
Overcurrent, Inverter A/F module
■ Sudden power failure
271
Lw otd tmp
Temperature of BT28 below the value that
permits operation
■ Cold weather conditions
■ Sensor fault
272
High otd tmp
Temperature of BT28 above the value that
permits operation
■ Warm weather conditions
■ Sensor fault
277
Sensor fault from heat
pump
Sensor fault, heat exchanger in FDCW(Tho-R).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board in FDCW
278
Sensor fault from heat
pump
Sensor fault, outdoor temperature sensor in
FDCW (Tho-A).
■ Open circuit or short circuit on sensor input
■ Sensor does not work (see section
"Disturbances in comfort")
■ Defective control board in FDCW
Summary of Contents for HMK60
Page 2: ...1 2 ...
Page 87: ...85 Technical data Electrical circuit diagram HSB60 ...
Page 88: ...86 Technical data HMK60 RC HY FDCW60VNX A FDCW60VNX A 2 FDCW60VNX A 3 ...
Page 89: ...87 Technical data FDCW60VNX A 2 FDCW60VNX A 3 RC HY RC HY RC HY ...
Page 90: ...88 Technical data RC HY RC HY RC HY ...
Page 93: ...91 Technical data sheet 3 ...
Page 94: ...92 Technical data sheet 4 ...
Page 97: ...95 Technical data sheet 3 ...
Page 98: ...96 Technical data sheet 4 ...
Page 99: ...97 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 100: ...98 Technical data sheet 6 ...
Page 101: ......
Page 104: ...1 2 FDCW71VNX FDCW100VNX LEK LEK ...
Page 189: ...85 Technical data Electrical circuit diagram HSB100 ...
Page 190: ...86 Technical data HMK100 RC HY FDCW FDCW FDCW ...
Page 191: ...87 Technical data FDCW FDCW RC HY RC HY RC HY ...
Page 192: ...88 Technical data RC HY RC HY RC HY ...
Page 195: ...91 Technical data sheet 3 ...
Page 196: ...92 Technical data sheet 4 ...
Page 199: ...95 Technical data sheet 3 ...
Page 200: ...96 Technical data sheet 4 ...
Page 201: ...97 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 202: ...98 Technical data sheet 6 ...
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Page 277: ...71 Technical data Electrical circuit diagram HSB140 ...
Page 280: ...74 Technical data sheet 3 ...
Page 281: ...75 Technical data sheet 4 ...
Page 284: ...78 Technical data sheet 3 ...
Page 285: ...79 Technical data sheet 4 ...
Page 286: ...80 Technical data INDOOR UNIT HSB INDOOR UNIT HSB sheet 5 ...
Page 287: ...81 Technical data sheet 6 ...