GREE HEAT PUMP WATER HEATER (NORTHERN EUROPE) ERROR CODE

Code Indication = E1
Error Name = Comp High-pressure protection
Cause of Error Code = Comp High-pressure switch is broken or the wiring is loose.
The water in the tank is not enough.
The installation of tank temp sensor is not correct.
The gas valve and liquid valve are not fully open.
The thermal expansion valve can not work normally
Control Description = Press ON/OFF key to clear

Code Indication = E3
Error Name = Comp Low- pressure protection
Cause of Error Code = Comp Low-pressure switch is broken or the wiring is loose.
The system has leaked.
The fans stop running or reverse.
Control Description = Press ON/OFF key to clear

Code Indication = E4
Error Name = Comp Discharge temp protection
Cause of Error Code = The resistance of temperature sensor is not correct.
The thermal expansion valve is blocked.
The system has leaked.
Mainboard of outdoor unit is damaged
Control Description = Press ON/OFF key to clear

Code Indication = E5
Error Name = Comp overload protection
Cause of Error Code = AC contactor is damaged.
The compressor wiring is not correct.
The voltage is not normal.
Overcurrent test board is damaged.
The refrigerant of the system is excessive
Control Description = Press ON/OFF key to clear

Code Indication = E8
Error Name = Fan 1 overload protection
Cause of Error Code = Mainboard of outdoor unit is damaged.
The wire connecting the wiring terminals of the mainboard breaks.
Control Description = Press ON/OFF key to clear

Code Indication = b8
Error Name = Fan 2 overload protection
Cause of Error Code = Mainboard of outdoor unit is damaged.
The wire connecting the wiring terminals of the mainboard breaks.
Control Description = Press ON/OFF key to clear

Code Indication = F3
Error Name = Defrost temp sensor failure
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = F5
Error Name = Discharge temp sensor error
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = F7
Error Name = Outdoor ambient temp sensor failure
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = EC
Error Name = Communication malfunction
Cause of Error Code = The communication line of the unit is not connected.
The communication line is not through.
The communication line of the unit is not connected correctly.
The two ends of communication line are not mounted with magnetic ring.
The outdoor unit is not electrically powered.
Control Description = Auto resume

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Friedrich Air Conditioners Error Detection

Models Indoor Units MW09Y3H MW12Y3H Outdoor Units MR09Y3H MR12Y3H ERROR DETECTION Error = Serial signal error Indoor unit LED Operation LED = Off Timer LED = 2 flash Coil dry LED = off Wired remote control = 01 Error = Serial signal (reverse) error, at operation start up Error = Serial signal error Indoor unit LED Operation LED = Off Timer LED = 3 flash Coil dry LED = off Wired remote control = 01 Error = Serial signal (reverse) error, during operation Error = Serial signal error Indoor unit LED Operation LED = Off Timer LED = 4 flash Coil dry LED = off Wired remote control = 13 Error = Serial signal (forward) error, at operation start up Error = Serial signal error Indoor unit LED Operation LED = Off Timer LED = 5 flash Coil dry LED = off Wired remote control = 13 Error = Serial signal (forward) error, during operation Error = Serial signal error Indoor unit LED Operation LED = Off Timer LED = 8 flash Coil dry LED = off Wired remote control = 00 Error = Wired remote control error Error = Indoor unit thermistor error Indoor unit LED Operation LED = 2 flash Timer LED = 2 flash Coil dry LED = Off Wired remote control = 02 Error = Indoor air thermistor error Error = Indoor unit thermistor error Indoor unit LED Operation LED = 2 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 04 Error = Heat exchanger middle thermistor error Error = Outdoor unit thermistor error Indoor unit LED Operation LED = 3 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 0C Error = Discharge pipe thermistor error Error = Outdoor unit thermistor error Indoor unit LED Operation LED = 3 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 06 Error = Heat exchanger thermistor error Error = Outdoor unit thermistor error Indoor unit LED Operation LED = 3 flash Timer LED = 4 flash Coil dry LED = off Wired remote control = 0A Error = Outdoor air thermistor error Error = Indoor unit control error Indoor unit LED Operation LED = 4 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 20 Error = Manual auto button welded Error = Outdoor unit control error Indoor unit LED Operation LED = 5 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 17 Error = Current trip error Error = Outdoor unit control error Indoor unit LED Operation LED = 5 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 18 Error = CT abnormal Error = Outdoor unit control error Indoor unit LED Operation LED = 5 flash Timer LED = 5 flash Coil dry LED = off Wired remote control = 1A Error = Compressor location detection error Error = Outdoor unit control error Indoor unit LED Operation LED = 5 flash Timer LED = 6 flash Coil dry LED = off Wired remote control = 1B Error = Outdoor unit fan drive system abnormal Error = Indoor fan motor error Indoor unit LED Operation LED = 6 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 12 Error = Abnormal lock (upper fan motor) Error = Indoor fan motor error Indoor unit LED Operation LED = 6 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 12 Error = Abnormal rotation (upper fan motor) Error = Refrigerant cycle error Indoor unit LED Operation LED = 7 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 0F Error = Discharge temperature abnormal Error = Refrigerant cycle error Indoor unit LED Operation LED = 7 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 24 Error = Cooling high pressure abnormal rise Error = Optional function error Indoor unit LED Operation LED = 8 flash Timer LED = 2 flash Coil dry LED = off Wired remote control = 19 Error = Active filter abnormal (first time) Error = Optional function error Indoor unit LED Operation LED = 8 flash Timer LED = 3 flash Coil dry LED = off Wired remote control = 19 Error = Active filter abnormal (second time) Error = Optional function error Indoor unit LED Operation LED = 8 flash Timer LED = 4 flash Coil dry LED = off Wired remote control = 25 Error = PFC circuit error Error = Model information error Indoor unit LED Operation LED = 0.1 sec on/off Timer LED = 0.1 sec on/off Coil dry LED = 0.1 sec on/off Wired remote control = 11 Error = Model information error Indoor unit MS36Y3F Outdoor unit MR36Y3F ERROR CONTENTS (Indoor unit) Operation can be checked by lighting and flashing of the display section OPERATION, TIMER, and VERTICAL SWING lamps. Perform judgment in accordance with the following. TEST RUNNING When the air conditioner is run by pressing the remote control unit test run button, the OPERATION, TIMER, and VERTICAL SWING lamps flash slowly at the same time. ERROR The OPERATION, TIMER, and VERTICAL SWING lamps operate as follows according to the error contents. OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Indoor EEPROM abnormal OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = ○ Error contents = Outdoor EEPROM abnormal OPERATION lamp (RED) = (2 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Indoor room temperature sensor open OPERATION lamp (RED) = (2 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = ○ Error contents = Indoor room temperature sensor shortcircuited OPERATION lamp (RED) = (3 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Indoor heat exchanger temperature sensor open OPERATION lamp (RED) = (3 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = ○ Error contents = Indoor heat exchanger temperature sensor shortcircuited OPERATION lamp (RED) = (4 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Float switch operated OPERATION lamp (RED) = (5 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Indoor signal abnormal OPERATION lamp (RED) = (6 times) ● TIMER lamp (GREEN) = ○ SWING lamp (ORANGE) = X Error contents = Indoor fan abnormal OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (2 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor power source connection abnormal OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (3 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor heat exchanger temperature sensor open OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (3 times) ● SWING lamp (ORANGE) = ○ Error contents = Outdoor heat exchanger temperature sensor shortcircuited OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (4 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor temperature sensor open OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (4 times) ● SWING lamp (ORANGE) = ○ Error contents = Outdoor temperature sensor shortcircuited OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (5 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor discharge pipe temperature sensor or compressor temperature sensor open OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (5 times) ● SWING lamp (ORANGE) = ○ Error contents = Outdoor discharge pipe temperature sensor or compressor temperature sensor shortcircuited OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (6 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor high pressure abnormal OPERATION lamp (RED) = ○ TIMER lamp (GREEN) = (7 times) ● SWING lamp (ORANGE) = X Error contents = Outdoor discharge pipe temperature or compressor temperature sensor abnormal ○ = 0.1s ON/0.1s OFF (flash) ● = 0.5s ON/0.5s OFF (flash) X = OFF 1. Make a TEST RUN in accordance with the installation instruction sheet for the indoor unit 2. OUTDOOR UNIT LEDS When a malfunction occurs in the outdoor unit, the LED on the circuit board lights to indicate the error. Refer to the following table for the description of each error according to the LED. LED = 1flash Error Contents = Communication error (Indoor unit - Outdoor unit) LED = 2 flash Error Contents = Discharg pipe temperature sensor LED = 3 flash Error Contents = Outdoor heat exchanger temperature sensor LED = 4 flash Error Contents = Outdoor temperature sensor LED = 7 flash Error Contents = Compressor temperature sensor LED = 8 flash Error Contents = Heat sink temperature sensor LED = 9 flash Error Contents = Pressure switch abnormal LED = 12 flash Error Contents = IPM error LED = 13 flash Error Contents = Compressor rotor position cannot detect LED = 14 flash Error Contents = Compressor cannot operate LED = 15 flash Error Contents = Outdoor fan abnormal (upper fan) LED = 16 flash Error Contents = Outdoor fan abnormal (lower fan) LED = lighting Error Contents = No error

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Thermo King Alarm Codes

For the following units: SB-III 30 SR+, SB-III 30 SR TCI-2, Super II 30 SR+ Thermoguard µP IV, Super II SR TCI-2 Thermoguard µP IV, SB-190, SB-200, SB-300, SB-400, Super II 190 Thermoguard µP VI Controller and SB-210, SB-310, SB-410 with SR-2 Controller. 0. No Alarms Exist 2. Evaporator Coil Sensor 3. Control Return Air Sensor 4. Control Discharge Air Sensor 5. Ambient Air Sensor 6. Coolant Temperature Sensor 7. Engine RPM Sensor 9. High Evaporator Temperature 10. High Discharge Pressure 11. Unit Controlling on Alternate Sensor 12. Sensor Shutdown 13. Sensor Check 15. Glow Plug Check/Intake Air Heater 17. Engine Failed to Crank 18. High Engine Coolant Temperature 19. Low Engine Oil Pressure 20. Engine Failed to Start 21. Cooling Cycle Check 22. Heating Cycle Check 23. Cooling Cycle Fault 24. Heating Cycle Fault 25. Alternator Check 26. Refrigeration Capacity Check 27. Motor RPM High 28. Pre-Trip Abort 29. Defrost Damper Circuit 30. Defrost Damper Stuck Closed 31. Oil Pressure Switch 32. Refrigeration Capacity Low 33. Check Engine RPM 35. Run Relay Circuit 36. Electric Motor Failed to Run 37. Engine Coolant Level 38. Electric Phase Reversed 39. Water Valve Circuit 40. High Speed Circuit 41. Check Engine Coolant Temperature 42. Unit Forced to Low Speed 43. Unit Forced to Low Speed Modulation 44. Check Fuel System 45. Hot Gas Bypass or Hot Gas Bypass Circuit 46. Check Air Flow 48. Check Belts or Clutch 50. Reset Clock 52. Heat Circuit 53. Economizer Valve Circuit 54. Test Mode Time-Out 55. Check Engine Speeds 61. Low Battery Voltage Check 62. Ammeter Out of Calibration Range 63. Engine Stopped – Reason Unknown 64. Pretrip Reminder 66. Low Engine Oil Level 67. Liquid Line Solenoid 70. Hourmeters Failure 71. Maintenance Hourmeter 4 Exceeds Set Time Limit 72. Maintenance Hourmeter 5 Exceeds Set Time Limit 73. Maintenance Hourmeter 6 Exceeds Set Time Limit 74. Controller Reset to Defaults 75. Internal Fault Codes 76. Internal Fault Codes 77. Internal Fault Codes 78. Internal Fault Codes 79. Data Log Overflow 80. Compressor Temperature Sensor 81. High Compressor Temperature 82. High Compressor Temperature Shutdown 83. Low Coolant Temperature 84. Restart Null 85. Forced Unit Operation 86. Discharge Pressure Sensor 87. Suction Pressure Transducer 89. Electronic Throttling Valve Circuit 90. Electric Overload 91. Electric Ready Input 92. Sensor Grades Not Set 93. Low Compressor Suction 94. Loader #1 95. Loader #2 96. Low Fuel Level 98. Fuel Level Sensor 99. High Compressor Pressure Ratio 108. Door Open Time-Out 109. High Discharge Pressure 111. Unit Configuration 117. Auto Switch to Electric 118. Auto Switch to Diesel 121. Liquid Injection Circuit 122. Diesel/Electric Relay Circuit 127. Setpoint Not Entered 128. Engine Run Time Maintenance Reminder #1 129. Engine Run Time Maintenance Reminder #2 130. Electric Run Time Maintenance Reminder #1 131. Electric Run Time Maintenance Reminder #2 132. Total Unit Run Time Maintenance Reminder #1 133. Total Unit Run Time Maintenance Reminder #2 134. Power On Hours 135. Spare Digital Inputs 136. Spare Digital Outputs 203. Display Return Air Sensor 204. Display Discharge Air Sensor THERMO KING TRUCK & TRAILER UNIT ALARM CODES View

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