Toshiba RAV-SP1104AT8Z-TR, RAV-SP1104AT8ZG-TR, RAV-SP1104AT8-TR, RAV-SP1604AT8Z-E Heating operation

Check

Outdoor

Check and troubleshooting

code

LED display

(Item without special mention Indicates part of outdoor unit.)

[P20]

<Display 1> <Display 2>

[High pressure protective operation]

¡

¡

¡

¥

NO

Is valve fully opened?

Open valve fully.

l

l

YES

¡

¥

¡

l

Reset the power supply

¡

l

and then perform test run

Cooling season

matching to the season.

Cooling operation

Heating season

Is there no problem

NO

Heating operation

on outdoor TL sensor?

(Measurement of resistance value)

YES

Replace sensor.

NO

Is there no crack or

loosening of outdoor fan?

YES

Check outdoor fan.

Defect

→ Replace, retightening

NO

Does not the outdoor fan

perform abnormal operation?

YES

Check the same items as

[P22] error.

Is there no element

which interfere heat exchange

YES

of outdoor unit?

• Clogging of heat exchanger

• Short circuit

NO

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle,

broken pipe,

abnormal overload, etc.

Defect → Correct defective position.

NO

NO

Does indoor fan

Are indoor fan motor

normally operate?

and connector normal?

YES

YES

Repair defective position.

Are resistance values

NO

Replace

of indoor TC and TCJ

sensor.

sensors normal?

YES

Check indoor P.C. board.

Defect → Replace

Is there no element which

interfere heat exchange of indoor unit?

YES

• Clogging of filter

Eliminate interfering element.

• Clogging of heat exchanger

•Short circuit

NO

Check overcharge of refrigerant, clogging of cycle, broken pipe, abnormal overload, etc.

Defect → Correct defective position.

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