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Wall controller not responding, indoor / outdoor unit operating think cust has altered outdoor dip switches

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: outdoor not workin

the outdoor unit is totally dead or only to the heat mode?if it is to the heat mode propably must check the refrigirator.if it is too the cool mode the plate has problem.if is multi check the outdoor plate in other occasion check the indoor plate.

Posted on Mar 29, 2009

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  • 659 Answers

SOURCE: carrier split 42G250HF-1(indoor unit

I'm not sure exactly what unit you have and what controls you have installed on the unit. But....there usually is a flash code schematic on the unit. Usually on the inside of the blower compartment cover. This should tell you what is wrong with the unit. It could have a low voltage short somewhere and is loosing the call for cool. So the answer can be a possible yes to your question but without knowing the flash code, it's hard to tell from my point of view. You might end up calling a service professional out to check it.

Posted on Mar 30, 2009

  • 14 Answers

SOURCE: System will not start up.

This is a signal fault between the indoor and outdoor first make sure the dip switches are set start with the unit closest to the condensor set as unit 1 then next unit as 2 and so on the dip switches are inside the indoor unit on the pc board if you check the manual it will tell you which swithes to set, if this wasnt done when the units where installed they would have never worked i would also check the signal wiring between the wallmount and the splitter box / bc box and make sure there isnt a loose connection when you have ruled this out id say more than likely it is a faulty indoor board on the wallmounted unt

Posted on Apr 08, 2009

  • 1253 Answers

SOURCE: indoor unit does not function -outdoor unit works

These units have circuit boards inside that have lights on them. These lights come on and tell you what the problem is. I have had 4 units do the same thing that yours is doing. The result has been that the compressor has gone bad. You have to get access to the control board to see the lights. There will either be one inside the inside unit or one inside the outside unit depending on exact manufacturer date.
Good luck and hope this helps.

Posted on Aug 23, 2009

shastalaker7
  • 1515 Answers

SOURCE: Hi. I have a failed indoor controler on a hitachi

Hi, the control voltage to both indoor and outdoor will always be 24 volts AC. If this is a heat-pump unit, the high voltage to the indoor and outdoor will be the same, 208/ 230/ 240/ 277. If it is a split unit with a gas fired unit, the outdoor will be 208 or higher and the indoor will be 120volts AC. I'm sorry, you have the inducer motor, so it is gas! My mistake. Yes, always the gas furnace will be 120 volts AC and the remote condenser will always be 208 and higher. As far as replacing the inducer motor with a different kind, it will have to be the same voltage, 120, and amps, R.P.M's, 60hz, and made to pressurize and be able to vent Hot gases also. It must fit and operate like the old one. They should make a replacement universal motor to fit? Check with some of the wholesale houses on this and they can locate a motor to fit. Keep me updated on this please Don.
Shastalaker7

Posted on Dec 19, 2009

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1 Answer

How do I get the fault codes up on a Panasonic split air conditioning system CUE24FKR


14.2.2 To Make a Diagnosis1 Timer LED starts to blink and the unit automatically stops the operation.
2 Press the CHECK button on the remote control continuously for 5 seconds.
3 "- -" will be displayed on the remote control display.
Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking)
4 Press the TIMER ? or ? button on the remote control. The code "H00" (no abnormality) will be displayed
and signal will be transmit to the main unit.
5 Each press of the button (? or ?) will increase error code
number and transmit error code signal to the main unit.
6 When the latest abnormality code on the main unit and
code transmitted from the remote control are matched,
Power LED will light up for 30 seconds and a "beep" sound
(continuously for 4 seconds) will be heard. If no codes are
matched, Power LED will light up for 0.5 seconds and no
sound will be heard.
7 The breakdown diagnosis mode will be canceled unless
pressing the CHECK button continuously for 5 seconds or
operating the unit for 30 seconds.
8 The LED will be off if the unit is turned off or the RESET
button on the main unit is pressed.
Diagnosis
display Abnormality / Protection control Abnormality
Judgement Emergency operation Primary location to verify H00 No abnormality detected - Normal operation H11 Indoor / Outdoor abnormal communica
tion > 1 min after starting
operation Indoor fan operation
only • Internal / external cable connections
• Indoor / Outdoor PCB H14 Indoor intake air temperature sensor
abnormality Continue for 5 sec. - • Intake air temperature sensor (detec
tive or disconnected) H15 Outdoor compressor temperature sensor
abnormality Continue for 5 sec. - • Compressor temperature sensor
(detective or disconnected) H16 Outdoor Current Transformer open cir
cuit - - • Outdoor PCB
• IPM (Power transistor) module H19 Indoor fan motor mechanism locked 7 times occurance
continuously - • Indoor PCB
• Fan motor H23 Indoor heat exchanger temperature sen
sor abnormality Continue for 5 sec. O
(Cooling only) • Heat exchanger temperature sensor
(detective or disconnected) H24 Indoor heat exchanger temperature sen
sor 2 abnormality Continue for 5 sec. - • Heat exchanger temperature sensor
(detective or disconnected) H27 Outdoor intake air temperature sensor
abnormality Continue for 5 sec. O • Outdoor temperature sensor (detec
tive or disconnected) H28 Outdoor heat exchanger temperature
sensor abnormality Continue for 5 sec. O • Outdoor heat exchanger temperature
sensor (detective or disconnected) H30 Outdoor discharge air temperature sen
sor abnormality Continue for 5 sec. - • Outdoor temperature sensor (detec
tive or disconnected) H33 Indoor / Outdoor wrong connection - - • Indoor / Outdoor supply voltage H38 Indoor / Outdoor mismatch (brand code) H50 Ventilation motor abnormality 7 times occurance
continuously - • Indoor PCB
• Ventilation motor H51 Nozzle lock abnormality 2 times occurance
continuously - • Nozzle H52 Limit switch abnormality - - • Indoor PCB H97 Outdoor fan motor mechanism locked 2 times occurance
within 30 minutes - • Indoor PCB
• Fan motor H98 Indoor high pressure protection - - • Air filter dirty
• Air circulation short circuit H99 Indoor heat exchanger anti-freezing pro
tection - - • Insufficient refrigerant
• Air filter dirty F11 Cooling / Heating cycle changeover
abnormality 4 times occurance
within 30 minutes - • 4-way valve
• V-coil F90 PFC control 4 times occurance
within 10 minutes - • Voltage at PFC F91 Refrigerantion cycle abnormality 2 times occurance
within 20 minutes - • No refrigerant
(3-way valve is closed) F93 Compressor rotation failure 4 times occurance
within 20 minutes - • Compressor F95 Cool high pressure protection 4 times occurance
within 20 minutes - • Outdoor refrigerant circuit F96 IPM (power transistor) overheating pro
tection 4 times occurance
within 30 minutes - • Excess refrigerant
• Improper heat radiation
• IPM (Power transistor) F97 Outdoor compressor overheating protec
tion 4 times occurance
within 10 minutes - • Insufficient refrigerant
• Compressor F98 Total running current protection 3 times occurance
within 20 minutes - • Excess refrigerant
• Improper heat radiation F99 Outdoor Direct Current (DC) peak detec
tion 7 times occurance
continuously - • Outdoor PCB
• IPM (Power transistor)
• Compressor

Note:
"O" - Frequency measured and fan speed fixed.
The memory data of error code is erased when the power supply is cut off, or press the Auto Switch until "beep" sound heard following by pressing the "CHECK" button at remote controller.
Although operation forced to stop when abnormality detected, emergency operation is possible for certain errors (refer to Error Codes Table) by using remote controller or Auto Switch at indoor unit. However, the remote controller signal receiving sound is changed from one "beep" to four "beep" sounds.

Oct 13, 2017 | Panasonic Heating & Cooling

1 Answer

A/C Unit SAMSUNG -Outdoor unit model= MH080FXCA 4A was connected to 3 indoor units:


It's possible you have a bad data wire on one of the systems. Swap the data wire or both if two with a different wire. (1&4--2&3) whatever. Whatever you do inside obviously do outside. Might have extra resistamce that is throwing the error but will be fine for a ground wire.Or do one system at a time, being sure to change your dip switch settings until you figure out the problem unit. Good Luck!!

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Apr 19, 2017 | Samsung Heating & Cooling

1 Answer

Fujitsu a/c outdoor model number AOTG12LVC indoor unit economy light flashing continuously, operation light single flash, timer light single flash this sequence repeats


Serial communication error. This means that the indoor unit is not communicating with the outdoor unit usually because the outdoor unit is faulty. You can check the indoor unit by switching it to 'fan' mode and seeing if all functions work normally (fan speed, louvers move as directed). If it responds normally, then it's probably ok so you can turn your attention to the outdoor unit. A common problem with the outdoor controllers is that they are susceptible to bugs, geckos, etc. shorting them out which will mean replacement of the board.

Mar 05, 2017 | Fujitsu Heating & Cooling

1 Answer

FUJITSU Inverter wall mounted split air conditioner Model : AST12LSBCW not working, flashing lights


This is a "PFC circuit abnormal" in the outdoor unit meaning that the outdoor controller board is faulty. Try turning the machine off at the isolator switch for 10 mins, then back on to see if the error resets. If not you will need a new controller PCB.

Nov 15, 2016 | Fujitsu Heating & Cooling

1 Answer

My Gree hansol split air conditioner wall mounted model gwh18tc-d3dna1a says it has a "Error U5" what does this mean


U5 Malfunction of current detection for the complete unit. A/C status, During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating the complete unit will stop operation. Possible Causes, Therese a circuit malfunction on the outdoor unit control board AP1, replace the outdoor unit control panel AP1.

Mar 06, 2015 | Heating & Cooling

1 Answer

Error message U4


Signal transmission error. Indoor and outdoor PCB's cannot communicate. Usually a faulty controller board in the outdoor unit. If the indoor unit otherwise functions normally (can control fan speed, louvres, beeps in replay to all remote buttons) then it is probably OK so check outdoor controller PCB.

Jul 21, 2014 | Daikin Mini Split Concealed Duct Units

1 Answer

The operation and timer lights on my Fujitsu split system are flashing on and off several times when the unit is switched off I noticed this after the system had stopped blowing air & I knew the room...


I have same problem like yours to my newly installed Fujitsu multi-split system (the first time use since system installed 1 week ago). I rang the electrician who did the installation; he said it must be the units themselves nothing to do with electricity.

Okay, then I rang Fujitsu and their local service agent. They suggested me to switch off C/B for an hour to reset the units. I followed the instruction but the indoor units still did not respond to remote control...

It simply looks like no power supply to indoor units (they are hard-wired to the outdoor unit). So I used a multi-meter to test the power terminals of indoor units (Danger! If you have no idea about this, don't even try! ): it seemed no power supply even C/B is on. I turned to the isolator which next to the outdoor unit. The isolator was making arcing noise when I switched it on and off. The indoor units suddenly turned on for few minutes then died again.

So I figured out the problem is that crooked isolator. I called the unhappy electrician to replace the isolator. End story....

I hope my experience will help you a little bit.

Jul 11, 2010 | Fujitsu 24C1 Air Conditioner

1 Answer

Hi. I have a failed indoor controler on a hitachi ducted aircon. mod ras-5hz. inverter. can I replace it with other type. Unit 15 yrs old and parts not available. What is the control voltage between indoor...


Hi, the control voltage to both indoor and outdoor will always be 24 volts AC. If this is a heat-pump unit, the high voltage to the indoor and outdoor will be the same, 208/ 230/ 240/ 277. If it is a split unit with a gas fired unit, the outdoor will be 208 or higher and the indoor will be 120volts AC. I'm sorry, you have the inducer motor, so it is gas! My mistake. Yes, always the gas furnace will be 120 volts AC and the remote condenser will always be 208 and higher. As far as replacing the inducer motor with a different kind, it will have to be the same voltage, 120, and amps, R.P.M's, 60hz, and made to pressurize and be able to vent Hot gases also. It must fit and operate like the old one. They should make a replacement universal motor to fit? Check with some of the wholesale houses on this and they can locate a motor to fit. Keep me updated on this please Don.
Shastalaker7

Dec 18, 2009 | Hitachi Heating & Cooling

1 Answer

System will not start up.


This is a signal fault between the indoor and outdoor first make sure the dip switches are set start with the unit closest to the condensor set as unit 1 then next unit as 2 and so on the dip switches are inside the indoor unit on the pc board if you check the manual it will tell you which swithes to set, if this wasnt done when the units where installed they would have never worked i would also check the signal wiring between the wallmount and the splitter box / bc box and make sure there isnt a loose connection when you have ruled this out id say more than likely it is a faulty indoor board on the wallmounted unt

Jan 27, 2009 | Fujitsu 24C1 Air Conditioner

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