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I have carrier infinity heat unit split system now my thermostat keeps saying comm error


Unplug the AC unit for 5 minutes to see if it will reset and clear the communication error.

Nov 18, 2016 | Carrier Heating & Cooling

1 Answer

Please, how can I solve the fault code 19, Master COMM. On my Electrolux W4240H washing machine. All the engineer u contacted didn't get it. Please, help.


Error code 19, MASTER COMM.

Communication with superior system has been broken. The cause can be an error in the network connections, damaged cable, defective monitoring system, etc.
Action: • Contact the supplier of the monitoring system for possible causes of the monitoring system not communicating.

Dado

Aug 20, 2015 | Electrolux Washing Machines

1 Answer

What can I do about a Gree Ductless A/C Unit with error code E6


It's newly installed. Why won't the installer troubleshoot and repair?

Communication line is just that. It will communicate via millivots or milliamperes. Voltage present must be induced, directly or indirectly. Shielding will help if it's grounded but if the installer did not ground then there's your problem. Higher voltage lines in contact with the communication lines will induce voltage into your comm line. Time to get a light and start looking for some of these things if you can't get your contractor / installer back out.

Mar 21, 2017 | Heating & Cooling

1 Answer

Haier service manual


This is what you error code means.
E1 = Room temperature sensor fault
Haier Air Conditioner Fault Codes


AC Repair Tamarac

Aug 25, 2014 | Haier Esax3186 Energy Star 17,000 Btu...

1 Answer

New LG mini split installation getting error CH05


I believe the wiring may be incorrect. Here arethe fault codes.

05

Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4

5

Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4
Hope this helps

Bob

Aug 08, 2014 | LG LA120HYV Art Cool Premier 120HYV Ultra...

2 Answers

Error code ch 05


Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4

Feb 03, 2011 | LG Art Cool LA181CNW Split System Air...

1 Answer

Hi there, we had blackout last night and our ac unit mitsubishi electric has an error code E6 is coming up! how can i fix this problem?Thanks


E-6 Indoor/outdoor transmission error. error.
Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4

Jan 23, 2011 | Heating & Cooling

1 Answer

I have an LG split system air conditioner model number LSZ244VN-4 it is coming up with a fault code of CS after it has been running for approx 5 minutes


There is no CS code. Please read as C5.
Fault Code 05 and 53 (CH05 is displayed at indoor unit, 53 is displayed at outdoor unit)
This fault code indicates a communication error between the indoor and outdoor units; this is usually caused
by wiring errors or condensate pumps connected to the inter-connecting cable.
The communication between the units is a fluctuating DC voltage commonly called a serial signal, it can be
easily lost if the wiring is not done correctly. If there is a communication error fault CH05 will appear within 5
mins of powering up the system.
Testing
• Check Outdoor and Indoor Power Supply Voltages ( 230V ±10% ) and correct as necessary.
• Check for any mis-wiring or loose connections and correct as required.
• Check the resistance between communication line and GND. (Normal: Over 2M).
• If one Indoor unit operates normally Outdoor PCB is generally normal.
Turn on the power and start the indoor unit in cooling, set the temperature to 18ºC; the serial communication
signal will only be present for the first 3 mins of operation.
Set your meter to DC Volts, Test between terminals 5 (Red probe) and 2 or Earth (Black probe) of the outdoor
unit, you should see a fluctuating 0-72 Vdc.
If the Voltage is not present disconnect the terminal 5 cable, test the Voltage between this wire (Red probe)
and 2 or Earth (Black probe), you should see a steady voltage in the range of -0.1 to -10.0 Vdc. If No Voltage
is present either the cable or Indoor PCB must be faulty. This can be determined by checking the voltage
output on the Comms terminal of the Indoor unit, with the Comms wire disconnected. If No Voltage is present
the Indoor PCB must be faulty, if present, cable must be at fault.

Jan 19, 2011 | Heating & Cooling

1 Answer

I have a LG Inverter Art cool and after about 5 minutes it stops and C5 shows on the panel Kerrie


Fault Code 05.
This fault code indicates a communication error between the indoor and outdoor units; this is usually caused
by wiring errors or condensate pumps connected to the inter-connecting cable.
The communication between the units is a fluctuating DC voltage commonly called a serial signal, it can be
easily lost if the wiring is not done correctly. If there is a communication error fault CH05 will appear within 5
mins of powering up the system.
Testing
• Check Outdoor and Indoor Power Supply Voltages ( 230V ±10% ) and correct as necessary.
• Check for any mis-wiring or loose connections and correct as required.
• Check the resistance between communication line and GND. (Normal: Over 2M).
• If one Indoor unit operates normally Outdoor PCB is generally normal.
Turn on the power and start the indoor unit in cooling, set the temperature to 18ºC; the serial communication
signal will only be present for the first 3 mins of operation.
Set your meter to DC Volts, Test between terminals 5 (Red probe) and 2 or Earth (Black probe) of the outdoor
unit, you should see a fluctuating 0-72 Vdc.
If the Voltage is not present disconnect the terminal 5 cable, test the Voltage between this wire (Red probe)
and 2 or Earth (Black probe), you should see a steady voltage in the range of -0.1 to -10.0 Vdc. If No Voltage
is present either the cable or Indoor PCB must be faulty. This can be determined by checking the voltage
output on the Comms terminal of the Indoor unit, with the Comms wire disconnected. If No Voltage is present
the Indoor PCB must be faulty, if present, cable must be at fault. Helpful?

Jan 19, 2011 | LG Art Cool LA121CNP wall/window Air...

1 Answer

I have error codes flashing on my thermostat..it is an american standard model the manual for the therm. has ACOT900AC43UA on front..says to find addedum 18-HD32D2-1/69-2009 for codes i cannot find it...


Error codes from American Standard Pub 18-HD32D2-8, which is a one-sheet document that came with my American Standard air-conditioner:

29 = not listed

129 = not listed

80 = HPCO Fault - problem is in outdoor unit - Desscription: High Pressure Monitor Fault (hard lock out, cycle power to reset)

91 = Communication Inactive Fault - problem is in air handler - Descriptions - COMM Bit Master Clock Error, COMM Heat/Cool Demand Error, Serial Motor Communication Inactive Error

91 = Communication Fault - problem is in furnace - Descriptions: Blower motor no COMM response, Inducer motor no COMM response, Loss of heat/cool demand, Loss of clock signal

91 = Communication Fault - problem is in outdoor unit - Descriptions: Loss of Heat/Cool Demand Message (COMM), Loss of Bit Master (Clock Signal)

91 = Communication Fault - Description: Comm line is dead and no bits have been received.

By the way, I do not recommend American Standard. I've had mine 14 months and it just blew up - the entire control panel blew. My advice to you - think about a different brand.

Nancy
Scottsdale, Arizona

Aug 22, 2010 | American Standard Heating & Cooling

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