7-4. Air conditioner operates, but abnormalities are observed.

7-4-1. Operation does not switch from HEAT to COOL (or COOL to HEAT).

(Only for heat pump model)

•Measure resistance of 4–way valve's winding.

OK

Check PCB Ass'y . (Power pack)

7-4-2. Poor cooling or heating.

•Measure temperature of suction and discharge air of air conditioner.

Temperature difference is small.

Possibility of gas shortage.

Charge refrigerant gas (R22).

Temperature difference between suction and discharge air is large enough (In cooling operation: approx. 14 °F or more).

• Check for clogging of air filter.

Air filter is clogged.

YES

•Fan speed is set to LOW.

•Review cooling load estimate,

if performance of air conditioner is normal.

Clean filter.

Set fan speed to HIGH.

Reduce cooling or heating load or replace the air conditioner with larger capacity.

7-4-3. Excessive cooling or heating.

• Set temperature is suitable.

NO

Set temperature to higher or lower value using thermostat.

33

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Sanyo STB1023C1, STB0823H1, STB0810C1 Air conditioner operates, but abnormalities are observed, Poor cooling or heating
Page 36 Page 38

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.

One of the standout features of the STB0823H1 is its energy efficiency. Incorporating advanced inverter technology, this air conditioner dynamically adjusts its compressor speed to maintain the desired room temperature while consuming minimal energy. This not only contributes to lower electricity bills but also aligns with environmental sustainability goals, making it an ideal choice for eco-conscious consumers.

The STB0823H1 also boasts a user-friendly interface, making operation seamless for everyone. The sleek remote control allows users to customize settings with ease, offering various modes including cooling, heating, dehumidification, and fan-only options. The model includes a programmable timer, enabling users to set the unit to run according to their schedules, further enhancing convenience and energy savings.

In terms of airflow and coverage, the Sanyo STB0823H1 is equipped with a powerful fan that delivers a robust airflow rate, ensuring rapid cooling or heating throughout the room. Additionally, adjustable louvers allow for precise control over air direction, maximizing comfort no matter the room size or layout.

Noise levels are a crucial consideration for homeowners, and the STB0823H1 excels in this regard. Utilizing advanced sound-reducing technologies, this air conditioning unit operates quietly, ensuring a peaceful indoor environment even during peak operation.

Regarding maintenance, the Sanyo STB0823H1 features a removable and washable air filter designed to trap dust, allergens, and other airborne particles, promoting a healthier living space. This easy-to-maintain filter helps improve indoor air quality while also prolonging the lifespan of the unit, as clean filters contribute to efficient performance.

In summary, the Sanyo STB0823H1 emerges as a high-performing air conditioning solution known for its energy efficiency, user-friendly design, powerful cooling capabilities, quiet operation, and low maintenance. This model embodies the fusion of innovative technology and thoughtful design, making it a smart investment for homeowners looking to enhance their comfort while being mindful of energy consumption.
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