Friedrich AC Error Codes| Troubleshooting
Friedrich AC Error Codes| Troubleshooting
Friedrich AC Error Codes| Troubleshooting
- Friedrich Portable Error Codes
- Friedrich PTAC Error Codes
- Friedrich Heat Pump Error Codes
- Friedrich Multi Zone Air Conditioner
- Friedrich Room/Window Air Conditioner
1.Friedrich Portable Error Codes:
Error code reason
E1 electrical sensor is short on both temperature and PCB.
E2 Lack of power of temperature sensor copper tubes and PCB wires.
E4 The signal indicates complete or poor contact to the tank’s water tank. The user needs to take out the rubber stopper which is located at the bottom of the unit, allowing water to drain out. Check the plug is wired correctly.
Frederich Port-able AC Troubleshooting
Friedrich AC Error Codes| Troubleshooting
Problem: the air conditioner does not work
Possible reasons:
1. Have power failure
2. plug is not connected
3. The timer is unable to work
4. the main switch is not pressed
the treatment:
1. Wait for the power out
2. Connect the plug
3. Provide repair
4. press the main switch
Problem: The air conditioner only works for short periods
Possible reasons:
1. Set temperature is very close to room temperature
2. There is something blocking the suction vent on the back of the condenser
3. Fan is blocked on condenser
the treatment:
1. Decrease the setting temperature
2. Remove any obstacles
3. Provide repair
Frederick Portable AC Remote Control
Problem: Air conditioner switches are constantly off
Possible Cause: Malfunction
Remedy: remove the plug and contact the service center
Problem: The air conditioner works but it does not cool the room
Possible reasons:
1. A window is opened
2. There is a source of conducting heat in the room (burner, lamp, etc.), orthe room is crowded
3. Air filter is full
4. The capacity of the air conditioner is not suitable for the condition or size of the room
5. The evaporator is frozen
the treatment:
1. Close the window
2. Remove / switch off the heat source
3. Decrease the set temperature
4. Clean the filter
5. Clean the airfilter
6. If necessary, change purifier filter
7. Do not operate equipment at very low temperatures (below ° C)
Problem: The device is too noisy and vibrates violently
Possible Cause: The compressor blocker device has become loose or the copper pipe is in contact with the body of the set
Remedy: Provide repair
Frederich Portable AC Troubleshooting
Friedrich AC Error Codes| Troubleshooting
Problem: When the unit’s LED shows E1
Possible Cause: There may be a broken or short circuit on the ambient temperature sensor
Remedy: Please check if this is a sensor problem. If not, contact the manufacturer to replace the PCB.
Problem: When the unit’s LED shows E2
Possible Cause: There may be a broken or short circuit on the brass temperature sensor (applicable only to the COOI / heat unit).
Remedy: Please check if this is a sensor problem. If not, contact the manufacturer to replace the PCB.
2. Friedrich PTAC Error Codes
Friedrich AC Error Codes| Troubleshooting
The Frederich Smart Center constantly monitoring the operation of the PT-AC unit and will store the service code if certain conditions are witnessed. In some cases the unit may take action and shut down the unit until the conditions are corrected.
PTAC – PD Series
Packaged Terminal Air Conditioner
Packaged Terminal Heat Pumps
Error code problem
E1 high pressure system protection
E2 antifreezing protection
F0 in refrigerant defects
E4 High discharge temperature protection of compressor
E5 Overcrout Protection
E6 communication malfunction
E8 High Temperature Resistant Protection
EE EEPROM Malfunction
EU limit / freq-uency reduction due to high temperature of module
C5 jumper cap malfunction protection
Foam collecting refrigerant
F1 indoor ambient temperature sensor is open / small circuit
F2 indoor evaporator temperature sensor is open / small circulated
F3 outdoor ambient temperature sensor is open / small circulated
F4 outdoor condenser temperature sensor is open / small circulated
F5 outdoor discharge temperature sensor is open / small circulated
F6 limit / decrease freq-uency due to over lode
F8 freq-uency decrease due to overcrack
F9 Reduction in freq-uency of due to high air discharge
FH limit / decrease freq-uency due to antifreezing
PH voltage too high for DC bus bar
DC bus bar PL voltage is too low
P0 compressor minimum freq-uency in test state
P1 compressor rated freq-uency at test stage
P2 compressor maximum freq-uency in test state
P3 compressor intermediate freq-uency in test state
P5 Overcrack protection of phase current for compressor
Capacitor PU charging fault
P7 module temperature sensor circuit malfunction
P8 Module High Temperature Protection
H0 freq-uency of decreases due to high temperature resistor during heating operation
H1 Defrosting
H2 static surrender protection
H3 over lode protection for compressor
H4 system is abnormal
H5 IPM Security
H6 internal motor (fan motor) does not operate
H7 Desynchronizing of Compressor
HC PFC Security
L3 Outdoor DC Fan Motor Malfunction
L9 Power Protection
LP does not match indoor unit and outdoor unit
LC failure startup
U1 malfunction of phase current detection circuit for compressor
U3 malfunction of voltage dropping for DC bus bar
U5 malfunction current detection of complete units
U7 four-way valve is abnormal
U9 Zerocrossing Outdoor Unit Malfunction
Digital Control Diagnostics and Test Mode
Error Code: 02
Code Translation: Extremely low voltage conditions exist <198V for 230V units and <239V for 265V units
Action taken by the unit: shutdown unit. Display error code and flash. Power is restored once the voltage is increased for the normal level system
Possible reasons:
Supply insufficient power supply
Defector
Use Blown Fuse
Error Code: 03
Code Translation: Return air thermistor sensor open or short circuit
Action taken by the unit: set the return air sensor = 75 ° F. Optional flash set point and error code. Quit running unit
Possible Cause: Defective sensor
Error Code: 04
Code translation: Indoor coil thermistor sensor open or short circuit
Action taken by the unit: Set ID coil temp = 40 ° F. Optional flash set point and error code. Quit running unit
Possible Cause: Defective sensor
Error Code: 05
Code Translation: Outdoor coil thermistor sensor open or short circuit
Action taken by the unit: setaud coil temp = 20 ° F. Optional flash set point and error code. Automatically change to electric heat mode only. Quit running unit
Possible Cause: Defective sensor
Error Code: 06
Code Translation: If O.D. Coil temperature> 175 deg F for 2 consecutive minutes. (Heat pump model only)
Action taken by the unit: optional flash set point and error code. Shut down unit for 5 minutes, then try again 2 times, if it fails for the 3rd time, close the unit.
Possible reasons:
Coil Dirty Coil
Failure Fan Motor Malfunction
Restricted air flow
. Non-condensation in refrigeration system
Error Code: 07
Code translation: ID coil temperature <30 deg for 2 consecutive minutes
Action taken by the unit: optional flash set point and error code. The compressor remains closed until the indoor coil thermistor reaches 45 ° F, and then continue operating the fan, activating the compressor. However, the compressor must still wait for a lockout time of 180 to 240 seconds
Possible reasons:
Filters Dirty Filters
Coil Dirty Coil
Failure Fan Motor Malfunction
Restricted airflow
Improper refrigerant charge
. Restriction in refrigerant circuit
Error Code: 08
Code translation: if unit cycle (heat or cold demand)> 9 times per hour
Action taken by the unit: optional flash set point and error code. Keep unit running
Possible reasons:
Unit Maintenance
Low load conditions
Error Code: 09
Code translation: if unit cycle (heat or cold demand) <3 times per hour
Action taken by the unit: optional flash set point and error code. Keep unit running
Possible reasons:
Un unit underestimated
High Load Conditions
Error Code: 10
Code Translation: Room Freeze Protection Trigger
Action taken by the unit: optional flash set point and error code. Keep unit running
Possible reasons: room temperature drops below 40 ° F
Friedrich AC Error Codes| Troubleshooting
Frederich PT-AC Parts
Frederich PT-AC Troubleshooting
Reason: The system is not regularly serviced or monitored (half-yearly or yearly)
Results: Premature component failures, poor performance, and increased operating costs can result
Reason: Air filters are not cleaned regularly and get blocked by particles
Result: Poor cooling, icing and water problems, as well as component failures and operating costs may increase
Reason: Condenser coil not maintained properly (blocked with particles)
Results: Poor cooling may result in component failures and increased costs
Reason: Evaporator coil not maintained properly (blocked with particles)
The result: poor cooling, icing and water problems, and operating costs may increase.
Reason: Components that show signs of fatigue are not replaced.
Result: may result in multiple service calls, poor performance, and increased operating costs
Reason: Drain and drain lines are not maintained
Result: May result in water and odor problems
3. Friedrich Heat Pump Error Codes
E1 SHORT CYCLE SITUATION: Defined as a compressor that starts and stops more often (more than 6 times per hour).
E2 KEYBOARD STUCK ERROR: If a key button is stuck or pressed for 20 seconds or more, the unit gets stuck. If the key is stuck, it will be ignored until released. If the “mode” key(button) is stuck, the unit’s function will default to cool mode.
E3 FROST PROBE OPEN: Normal operation allowed. Change the probe.
E4 FROST PROBE SHORT: Normal operation allowed. Change the probe.
E5 INDOOR PROBE OPEN: The control assumes that the indoor ambient temperature is 90 degrees F and the unit will operate. Change the probe.
E6 INDOOR PROBE SHORT: The control assumes that the ambient temperature is 90 degrees F and the unit will operate. Change the probe.
Error coding for “we / y” model
E1 SHORT CYCLE SITUATION: Defined as a compressor that starts and stops more often (more than 6 times per hour).
E2 KEYBOARD STUCK ERROR: If the key button is stuck or pressed for 20 seconds or more, the unit gets stuck. If the key is stuck, it will be ignored until released. If the “mode” the key is stuck, the unit’s function will default to the cool mode.
E3 AMBIENT (INDOOR) AIR PROBE OPEN or SHORT: Control will assume ambient temperature is 90 ° F when in cool mode and 60 ° F when in heat mode. The unit will operate (see note below)
E4 EVAPORATOR TEMPERATURE PROBE OPEN or SHORT: Normal operation allowed. Change the probe.
E5 CONDENSER TEMPERATURE PROBE OPEN OR SHORT: Normal operation allowed. Change the probe.
E7 motor operation
E9 heat pump failure
The error code must be in unit test mode to enter the function. Activation error code mode: press the time on / off button (see Figures 4 and 5). The LED error code for TIMER On / Off will flash 1bps (beats per second) when mode is activated. Press the temp button / hour button will display “00”. Constant presses will scroll through all the error codes stored. Press the Temp / Hour button to see the reverse order of the error code. The temperature set point will appear when the end of the stored error code is reached. (Each error code is listed once).
Exiting fault code mode: Pressing the timer on / off button. Clearing error code: error codes become clear
By exiting the error code mode from memory.
Memory
Electronic controls have a memory to maintain all functions and settings, as installed by the user, in the event of a power failure. For example: Once power is restored to the unit, there is a delay of two seconds before the fan arrives and about three minutes before the compressor is activated, provided that the mode is set to cool. Went and the set point temperature is not found in the room.
Automatic component protection
Your unit is equipped with automatic component protection. To protect the unit’s compressor, if you turn the unit off or if power is interrupted, there is a three-minute delay. The fan will not be affected. Also, if you switch from Cool mode to Fan only mode, and return to Cool mode, there is a delay of three minutes before the compressor returns.
4. Friedrich Multi Zone Air Conditioner
Error code meaning
Indoor error
00 no error
01 indoor room themster error
02 Indoor in-piping sensor error
03 remote controller error
04 drain pump error
05 Communal error within and outside
06 indoor out-piping sensor error
07 Different Mode Operation
09 EEPROM even error check
10 Indoor BLDC Fan Lock
Outdoor error
21 DC Peak (IPM Error) – Over rated current off
22 CT2 (Max CT) 2 times – input of current off
23 DC Link Low Voltage. 2 times – DC link voltage is below 140Vdc off
24 L_P / H_P Switch – Low / High Press Switch Open Close
25 low voltage / over voltage – abnormal AC voltage input off
26 DC Compressor Status Error – Compressor Start Fall Collapse Error
27 PSC / PFC error – inverter PCB input current is over100A (peak) for 2us off
28 DC Link High Voltage – Closed
29 over current comp – inverter compressor turned off
32 D-Pipe High (INV) – Off Off
40 CT sensor (short/open) – CT circuit malfunction
41 INV. D-Pipe Threshold – Open / Short Off
44 Outdoor Air Threshold – Open / Short Off
45 Cond. Pipe Th fault – Open / Short Off
46 suction pipe fault – short/open off
51 Capacity of over 5times – over combination off
52 Signal error (DSP board <-> main board) – Communication poor shutdown
53 signal error (indoor <-> outdoor) – communication poor shutdown
Check error 60 Error – Check even missmatching
61 Cond. Pipe Th High – Cond. Temporary. Drunk
62 Heat Sink Th High-Heat Temp. Drunk
65 Heat Sink Threshold – Open / Short Off
67 Outdoor BLDC Fan Lock – Outdoor Fan Is Not Running Off
73 PFC Fault Error (S / W) – Overall Outdoor Unit PFC
5. Friedrich Room/Window Air Conditioner
Fault code resolution
CH01 Indoor Air Sensor Error. Indoor air sensor open or small.
CH09 checksum error. EEPROM read date error.
CH34 high pressure error. As high pressure, compile more than 10 bars in 1 hour.
Frederich air conditioner heat pump manual pdf
Frederich PTAC Installation and Operation Manual PDF
Frederich Portable AC Manual PDF
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