Pioneer WYT Series Service Manual

Pioneer WYT Series Service Manual

Ductless mini split system air conditioner / heat pump
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DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP
WYT Inverter Series
For 9,000-36,000 BTU/hr Systems
Service Manual
CS78421-548-754
Please read this manual carefully before installing
or operating your new air conditioning system.
Be sure to save this manual for future reference.

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Questions and answers

Al hughes
April 9, 2025

How to switch from c to f

2 comments:
Mr. Anderson
May 14, 2025

To switch the Pioneer WYT Series from Celsius to Fahrenheit:

1. Press and hold the TURBO button for more than 5 seconds to activate the change prompt.
2. Repeat the process once more to toggle between °C and °F.
3. Release the button. The setting will activate after 5 seconds.

This answer is automatically generated

Tereso Ortiz
July 15, 2025

@Al hughes Yn009alfi19rpd

Larry Hagewood
May 24, 2025

when trying to adjust temp in cooling once i tab up or down the unit shuts off an when I turn unit back on it reads 78 degrees my unit is wyt-19 24000 btu

1 comments:
Mr. Anderson
May 26, 2025

The Pioneer WYT-19 24000 BTU unit may shut off in cooling mode if the outdoor temperature is less than -2°C (28.4°F). In this case, the controller shuts down the compressor and shows an error code. This could be the cause if the unit turns off unexpectedly when adjusting the temperature.

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jacques thiffault
April 22, 2025

have a E-4 display on my indoor unit ,wich indicate indoor room temp.sensorT1 open circuit or short circuit, how can i do the repair of my 12,000 BTU air cond./heat pump Pioneer series WYS

1 comments:
Mr. Anderson
May 11, 2025

The E4 error is not directly listed in the provided context. However, based on similar sensor-related errors (E1 and E2), the steps to repair an indoor room temperature sensor open circuit or short circuit may include:

1. Check sensor connection: Ensure the room temperature sensor is properly connected to the PCB at the correct slot (likely CN6). Reconnect if loose or unplugged.

2. Test the sensor: Measure the resistance of the room temperature sensor. At 25°C, it should be approximately 5 kΩ. If it is shorted or open (infinite or zero resistance), replace the sensor.

3. Check the PCB: If the sensor and connections are fine, the indoor PCB may be faulty. Replace the indoor main PCB if needed.

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mihai stihi
March 31, 2025

what is F6 code

1 comments:
Mr. Anderson
May 14, 2025

The F6 code is not listed in the provided error or protection code lists for the Pioneer WYT Series. Therefore, its meaning cannot be determined from the given information.

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