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Rsd1036-1y Outdoor fan will not run

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What to do with carrier infinity ac fault code 81


"Low capacity thermal lockout"#81. What this tells me is your 1st stage cooling(low capacity) is locked out for 4 he's due to a dirty outdoor coil, weak outdoor fan motor run capacitor, slow outdoor fan motor, overcharged with freon, restricted or short cycling outdoor airflow(overheating), damaged discharge temp switch, faulty outdoor circuit board. That's all the scenarios I can think of for now. Hope this helps!

Aug 24, 2017 | Carrier Heating & Cooling

1 Answer

Haam air conditioning split then I switch on come to E7 what is the problem in my a c please give me answer any parson


Malfunction of Outdoor Unit Fan Motor ( E7)
Remote Controller
Display
E7 Method of
Malfunction
Detection
Abnormality of fan motor system is detected according to the fan speed detected by hall IC when the
fan motor runs.
Malfunction
Decision
Conditions
?? When the fan runs with speed less than a specified one for 15 seconds or more when the fan motor
running conditions are met

?? When connector detecting fan speed is disconnected
?? When malfunction is generated 4 times, the system shuts down.
Supposed Causes ?? Malfunction of fan motor
?? The harness connector between fan motor and PC board is left in disconnected, or faulty connector
?? Fan does not run due to foreign matters tangled
?? Clearing condition: Operate for 5 minutes (normal)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.

Replace the outdoor unit fan motor.
Connect the connector.
Remove the foreign matter.
YES
NO
Are fan motor
connectors
disconnected?
Replace the outdoor unit fan motor.
NO
YES
Is the pulse input?
Check No. 11 Check for pulse input
for number of rotations
on the outdoor unit
PC board.
Replace the outdoor unit PC board.
YES
NO
NO
YES
Is there
any foreign matter
around the fan?
Can the fan be
easily rotated by hand?
(S2584

Jun 07, 2016 | Heating & Cooling

1 Answer

Coolant fan doesn't come on unless I run air conditioner.


"Coolant Fan" is not necessarily a common term used to refer to any particular fan in a standard HVAC system. Are you referring to the "Indoor Fan" that circulates the air within the living space???? OR are you referring to the "Outdoor Fan" or "Condensor Fan" that circulates the air across the outdoor coil ??

If its the indoor fan on an air handler that's not running unless its in A/C mode, it will be a faulty heating circuit fan relay on the main control board.

If its the outdoor fan and its a heat pump system the outdoor fan stops during the defrost mode so there is a slight possibility the system defrost board is faulty and stuck in defrost.

A little more information may help obtain a more specific answer.

Apr 14, 2015 | Heating & Cooling

1 Answer

How to troubleshoot thermostat wiring?


I'm not sure if the thermostat is wired correctly. First, the thermostat is wired directly to the outdoor unit (compressor/condenser unit). It is NOT directly connected to the indoor unit. It connects to a low voltage control panel in the outdoor unit that sends a signal to your indoor fan/evaporator. This wire is called the fan relay switch and physically runs between the low voltage controls of the indoor and outdoor units. If the fan relay is bad it's possible that the unit runs continuously. To prevent destroying your outdoor unit there is a safety feature that prevents the indoor fan from shutting down while the outdoor unit is running. If the indoor fan did shut down while the outdoor unit was running than you would slug your compressor. That is, your compressor normally sees refrigerant gas but is instead seeing refrigerant liquid. That would not be good since this scenario would destroy your compressor. It sounds like a faulty fan relay. The actual contactor portion of the relay is in the outdoor unit.

Aug 22, 2014 | Honeywell Electronic Programmable...

1 Answer

Indoor fan slow to rotate in heat mode and no heat/compressor


The indoor fan will not run at normal fan speed untill the indoor coil reaches 32oC. This is done so that a cold draught is not felt when outdoor unit is not running. Check to make sure the outdoor unit is operating. If the outdoor fan is running but there is no indoor fan after 5 mins then you must likely have a gas issue or a fault compressor circuit.

May 31, 2010 | Fujitsu 24R1 Air Conditioner

1 Answer

Outdoor unit fan always runs even when indoor unit is off. I have disconnected all control wires from the headunit (at the outdoor end to rule out faulty signalling). The fan runs all the time, with just...


I have had this problem with a Fujitsu unit before. If the power is supplied to the outdoor unit first but unit is meant to have power supplied to indoor unit first, outdoor will only stop when power is cut off! In that case, you will have to run the power cable to the indoor unit first and then connect from appropriate terminal back to outdoor unit. (Often the indoor will stop outdoor unit by just cutting the power to it via use of a relay on the pcb.)

Jan 16, 2010 | Panasonic Heating & Cooling

1 Answer

Outdoor unit fan making noise when running sounds


Bearing in fan going out. Let it run till it quits or call service tech to change motor. Fix cost about 250 to 300 dollars. russ

Jul 22, 2009 | Carrier Heating & Cooling

1 Answer

Outdoor unit does not start. indoor unit fan does run.


by the sound of it the relay in the outdoor section is bad

May 31, 2009 | Heating & Cooling

1 Answer

I have Goodman combination heating and cooling outdoor unit PBB series. I am wanting to know if when the heat is on should the fan outside turn or is that only ac


If it's a heatpump, then yes the outdoor fan will turn unless the unit is going in defrost mode. But for the majority of the time a heat pump is operating in heat mode, the outdoor fan is running.

Jan 16, 2009 | Heating & Cooling

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