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aire acondicionado marca mcquay marca error E3

21/1/2012 09:44AM
Hola tengo un aire acondicionado marca mcquay de conductos, y me marca en el mando el error E3. espero que alguien me pueda ayudar.
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26/3/2012 02:41PM
Parece que es un sensor, pero no estoy seguro, placa que no detecta el sensor, uff complicado.

Fault and Protection Codes for Applied PDAN Control Board

Fault code = CE
Description = Communication Error
Cause for the fault = 1. Cable not plugged in properly on either LUI or relay board.
2. Defective cable.

Fault code = Sh
Description = Missing Shunt
Cause for the fault = The user configurable shunt for System Select, Control Select Off Fan Cycle, and/or Hydronic Valve is
missing or not placed properly.

Fault code = E1
Description = Problem with IAS
Cause for the fault = Indoor Air Sensor missing or short

Fault code = E2
Description = Problem with ICS
Cause for the fault = Indoor Coil Sensor missing or short.

Fault code = E3
Description = Problem with OCS
Cause for the fault = Outdoor Coil Sensor missing or short.

Fault code = E4
Description = Problem with OAS
Cause for the fault = Outdoor Air Sensor missing or short.

Fault code = E5
Description = Problem with HFLO Sensor
Cause for the fault = HFLO Sensor missing or short on control board or heating medium >250ºF. Check for installation /
connection of HFLO sensor. Should be on coil return line.

Protection code = CF
Description = Coil Freeze Protection
Cause for the fault = Indoor coil temperature has been below 32ºF for 5 minutes.
Protection feature and the displayed code are dismissed when indoor coil temperature rises above 49ºF.

Protection code = Rf
Description = Room Freeze Protection
Cause for the fault = Indoor air temperature has dropped below 41ºF. Protection feature and the displayed code are
dismissed when indoor room temperature rises at and above 50ºF.

Protection code = hI
Description = High Room Temperature
Cause for the fault = Indoor air temperature is 5 degrees above maximum setpoint limit. Protection feature and the displayed
code are dismissed when indoor coil temperature rises above 50ºF.

Protection code = Lo
Description = Low Room Temperature
Cause for the fault = Indoor air temperature is 5 degrees below minimum setpoint limit.

Protection code = LA
Description = Low Ambient Lockout
Cause for the fault = Outdoor air temperature is below 25ºF.


Solid State Digital Controls – Local User Interface Display Codes

Fault code = LC
Description = Control Lockout –
Cause for the fault = Displays for 5 seconds when any button is pushed when in the "lockout mode".

Fault code = nL
Description = Control Lockout – Normal Control
Cause for the fault = Displays for 5 seconds to confirm normal mode of operation when control lockout turned off.

Fault code = CL
Description = Damper Closed
Cause for the fault = Control setup indicator damper is in "closed" mode.

Fault code = AU
Description = Auto Damper
Cause for the fault = Control setup indicator damper is in "automatic" mode.

Fault code = Au
Description = Auto HP/E
Cause for the fault = Control setup indicator heat pump electric is in automatic changeover mode (HP/E).

Fault code = bY
Description = HP/E Bypass
Cause for the fault = Control setup indicator, electric heat is bypassed when OCS > 40˚.

Fault code = CF
Description = Coil Freeze Protection
Cause for the fault = Indoor coil is ≤ 32˚ for at least 5 minutes. Compressor and outdoor fan stop and indoor fan continues
to run for active defrost.

Fault code = rF
Description = Room Freeze Protection
Cause for the fault = Room temperature < 41˚. Damper closes (Premium board) and unit goes into heat mode.

Fault code = Lo
Description = Coil freeze protection
Cause for the fault = Room temperature is 5˚ below set point.

Fault code = Lo
Description = Coil freeze protection
Cause for the fault = Room temperature is 5˚ below set point.

Fault code = Hi
Description = Temperature Limiting
Cause for the fault = Room temperature is 5˚ above set point.

Fault code = LA
Description = Low Ambient Lockout
Cause for the fault = Unit is in cooling mode and outdoor air < 25˚. Compressor will cut out.

Fault code = E1
Description = Indoor Air Sensor
Cause for the fault = Indoor Air Thermister Failure.

Fault code = E2
Description = Indoor Coil Sensor
Cause for the fault = Indoor Coil Thermister Failure.

Fault code = E3
Description = Outdoor Coil Sensor
Cause for the fault = Outdoor Coil Thermister Failure.

Fault code = E4
Description = Outdoor Air Sensor
Cause for the fault = Outdoor Air Thermister Failure.
26/3/2012 02:48PM
Seguro ya con el problema, es código de error E03 = Nombre = Sobre corriente durante la desaceleración causa (s) = La salida del inversor era un cortocircuito, o el eje del motor está bloqueado o tiene una carga pesada. Estas condiciones causan excesiva corriente en el inversor, por lo que la salida del inversor se apaga.

Esto es por que la calidad del aparato es pésima y el eje se ha doblado, o lo normal que la turbina que es de hojalata este doblada y contrapese mal o roce, saludos.
27/3/2012 08:36PM
en estos equipos la falla E3 es el sensor que va en el condensador que esta malo
24/4/2012 03:25PM
Ya esta, el vecino corto el cable de comunicaciones de dos hilos a la entrada de la exterior.
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