Sanyo STB1123C1, STB0823H1 If a sensor is defective. Only for heat pump model, Open, Short

Models: STB1020C1 STB1220C1 STB0811C1 STB1023C1 STB0810C1 STB1010C1 STB1123C1 STB0823H1

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7-5. If a sensor is defective. (Only for heat pump model)

7-5-1. Room temp. thermistor (RTH) is defective.

A. Open

When thermistor opens, the air conditioner will be in the following conditions as the controller tries to detect extremely low room temperature.

a) In Cooling mode: The air conditioner soon stops and will not start again. (Thermo.OFF)

 

Compressor does not run.

 

b) In Heating mode: The air conditioner continues to operate. (Thermo.ON)

 

(Heat pump)

Electric heater does not stop.

 

 

As a result, the room becomes too warm.

Temperature

 

 

sensor

B. Short

 

Lead

wires

When thermistor is short, the air conditioner will be in the following conditions as the controller tries to detect extremely high room temperature.

Thermistor Structure

a)In Cooling mode: The air conditioner continues to operate. (Thermo.ON) Compressor does not stop.

As a result, the room becomes too cold.

b)In Heating mode: The air conditioner soon stops and will not start again. (Thermo.OFF)

(Heat pump)

Neither compressor nor electric heater runs.

NOTE Definition of Open or Short Circuit of Sensor (Thermistor)

Open... A lead wire is broken or disconnected or the circuit inside the temperature sensor is open .

Short... The protective cover of a lead wire has been damaged, and the exposed wire is touching another metal part, or both lead wires have become exposed and are touching each other. Alternatively, the circuit inside the temperature sensor is closed.

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Sanyo STB1123C1 If a sensor is defective. Only for heat pump model, Room temp. thermistor RTH is defective, Open, Short

STB1020C1, STB1220C1, STB0811C1, STB1023C1, STB0810C1 specifications

The Sanyo STB0823H1 is a remarkable addition to the world of home appliances, particularly in the domain of efficient air conditioning solutions. Designed with precision and modern technology, this model offers both reliability and versatility, ensuring optimal performance across various environments.

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