9-2. Air conditioner does not operate.

9-2-1. Circuit breaker trips (or fuse blows).

A. When the circuit breaker is set to ON, it is tripped soon. (Resetting is not possible.)

There is a possibility of ground fault.

Check insulation resistance.

If resistance value is 2M½ or less, insulation is defective (“NO”).

Indoor

unit

1

2

3

4

5

6

G

21

Inter–unit wiring

Outdoor

unit

18

27

G G

1

Power supply wiring

L2

L1

Ground

Circuit breaker

Power supply

WARNING

*Set circuit breaker to OFF.

1Remove both power supply wires and inter-unit wires from terminal plate in outdoor unit.

Measure insulation resistance of outdoor unit.

2Remove inter-unit wires from terminal plate in indoor unit.

Measure insulation resistance of indoor unit.

NO

NO

Insulation of outdoor unit is defective.

Measure insulation resistance of electrical parts in outdoor unit.

Insulation of indoor unit is defective.

Measure insulation resistance of electrical parts in indoor unit.

55

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Sanyo KHS1852-S, CH1852, CH0952 service manual Air conditioner does not operate, Circuit breaker trips or fuse blows

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.

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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.

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