9. TROUBLESHOOTING

9-1. Check before and after troubleshooting

WARNING

Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Disconnect power or turn off circuit breaker before you start checking or servicing.

9-1-1. Check power supply wiring.

Check that power supply wires are correctly connected to terminals No. 7 (L1) and No. 8 (L2) on the terminal plate in the outdoor unit.

Indoor

Inter–unit

Outdoor

 

 

unit

 

 

unit

power wiring

 

 

 

 

 

 

1

 

1

 

 

2

 

2

 

 

3

 

3

 

 

4

 

4

 

 

5

 

5

 

 

6

 

6

L1

Power supply :

 

 

7

Single- phase, 60Hz

 

 

L2

 

Inter–unit

8

115V.....CH0951,CH1251

 

 

230/208V............CH1852

 

control wiring

 

 

 

 

 

 

G

Ground

G G

 

Ground

 

 

 

 

 

 

 

9-1-2. Check inter-unit wiring.

Check that inter-unit wiring is correctly connected to the indoor unit from the outdoor unit.

9-1-3. Check power supply.

Check that voltage is in specified range (±10% of the rating).

Check that power is being supplied.

9-1-4. Check lead wires and connectors in indoor and outdoor units.

Check that coating of lead wires is not damaged.

Check that lead wires and connectors are firmly connected.

Check that wiring is correct.

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Sanyo CH0952, CH1852, KHS1852-S service manual Troubleshooting, Check before and after troubleshooting

KHS1852-S, CH0952, CH1852 specifications

The Sanyo CH0952, CH1852, and KHS1852-S are innovative and versatile air conditioning units designed to deliver efficient cooling and heating solutions for both residential and commercial applications. These models stand out in the market for their advanced technologies, energy efficiency, and user-friendly features.

The Sanyo CH0952 is a compact and highly efficient wall-mounted air conditioner that is ideal for small to medium-sized rooms. One of its main features is the inverter technology, which allows the unit to adjust its cooling or heating output based on the temperature requirements of the space. This not only enhances comfort but also significantly reduces energy consumption, making it an eco-friendly choice.

The CH1852 model builds upon the advantages of the CH0952 but offers an increased capacity suitable for larger areas. Like the CH0952, it is equipped with inverter technology to maintain optimal temperatures with minimal energy use. Additionally, it features a multi-speed fan system, which allows users to select the desired airflow level for personalized comfort. The unit’s quiet operation further enhances the user experience, making it an ideal choice for bedrooms and living spaces.

The KHS1852-S model is a powerful option, designed for heavy usage in both commercial environments and larger residential spaces. It boasts advanced filtration technologies, ensuring the air quality remains high by removing dust, allergens, and other impurities from the air. The KHS1852-S is also equipped with smart technology, allowing for remote control operation via mobile applications. This feature provides additional convenience, enabling users to control their air conditioning settings from anywhere.

All three models are designed with user-friendly controls and clear displays, improving accessibility for all users. Built to last, each unit incorporates durable materials and innovative engineering that offers long-term reliability and maintenance ease.

In summary, the Sanyo CH0952, CH1852, and KHS1852-S air conditioning units exemplify state-of-the-art technology, delivering efficiency, comfort, and convenience. Their inverter technology, multi-speed fan options, advanced filtration systems, and smart control capabilities make them an excellent choice for anyone seeking effective climate control solutions. With these modern features, Sanyo continues to lead in creating efficient and user-friendly air conditioning systems.