Troubleshooting 80; Electronic Function - Carrier ALLEGRO 42HQE009N Service Manual

7.4 Outdoor fan motor windings resistance(@20℃).
Motor model
Winding 1 (Main)
Winding 2 (Sub)
8. Troubleshooting
For all heat pump model
Over current protection of the compressor occurs 4 times
Indoor fan speed has been out of control for over 1 minute
No over-zero signal
Temp. sensor on indoor evaporator is open circuit or short
circuit
Indoor room temp. sensor is open circuit or short circuit
EEROM error
r Extinguish
☆ Flash at 5Hz

Electronic function

9.
9.1 Electric Control working environment
9.1.1 Input voltage: 175~253V
9.1.2 Input power frequency:50Hz
9.1.3 Ambient temperature: -7°C~+43°C
9.1.4 Indoor fan normal working amp is less than 1A,
9.1.5 Outdoor fan. Normal working amp is less than 1.5A
9.1.6 Four-way valve normal working amp is less than 1A.
9.1.7 Swing motor: DC12V.
9.1.8 Compressor: single-phase power supply. Its normal working amp is less than 15A
9.2 Proper symbols and their meanings:
TA: Indoor ambient temperature
TE: Indoor evaporator temperature
TS: Setting temperature through the remote controller
I : Self-protection amp of compressor, continue three seconds until turns off the compressor.
3sec
I : Self-protection amp of compressor, continue five minutes until turns off the compressor.
5MIN
I : Self-protection amp of outdoor fan/indoor fans when they change from higher wind to lower
FAN
wind.
I : Amp self-protection return value
RESTORE
TH : High wind, defrosting temperature difference
DEFROST
TM : Middle wind, defrosting temperature difference
DEFROST
TL : Low wind, defrosting temperature difference
DEFROST
TE1: Anti-cold wind, from Fan Off to Breeze temperature
TE2: Anti-cold wind, from Breeze to Setting Fan Speed temperature
TE3: Anti-cold wind, from Setting Fan Speed to Breeze temperature
Failure phenomenon
YDK25-6C
170
195
Operation lamp
14
YDK53-6K
73±8%
134±8%Ω
Timer lamp
☆ X
X
☆
☆ ☆
X X
X ☆
On
☆
Defrosting lamp
☆
☆
☆
☆
X
X