6. TROUBLESHOOTING

6-1. Summary of Troubleshooting

<Wired remote controller type>

1.Before troubleshooting

1)Required tools/instruments

+ and screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

Tester, thermometer, pressure gauge, etc.

2)Confirmation points before check

a) The following operations are normal.

1.Compressor does not operate.

Is not 3-minutes delay (3 minutes after compressor OFF)?

Is not the outdoor unit in standby status though the remote controller reached the setup temperature?

Does not timer operate during fan operation?

Is not an overflow error detected on the indoor unit?

Is not outside high-temperature operation controlled in heating operation?

2.Indoor fan does not rotate.

Does not cool air discharge preventive control work in heating operation?

3.Outdoor fan does not rotate or air volume changes.

Does not high-temperature release operation control work in heating operation?

Does not outside low-temperature operation control work in cooling operation?

Is not defrost operation performed?

4.ON/OFF operation cannot be performed from remote controller.

Is not automatic address being set up?

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

Is not being carried out a test run by operation of the outdoor P.C. board?

b)Did you return the cabling to the initial positions?

c)Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble

Confirmation of check code display

Check defective parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

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Toshiba CEILING TYPE, CONCEALED DUCK TYPE Summary of Troubleshooting, Before troubleshooting, Troubleshooting procedure

CONCEALED DUCK TYPE, CEILING TYPE specifications

Toshiba has long been a name associated with innovative and efficient HVAC solutions, and their Concealed Duck Type, Ceiling Type air conditioning units exemplify this legacy. These units are designed to provide exceptional comfort while seamlessly integrating into a variety of interior spaces.

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In summary, Toshiba's Concealed Duck Type, Ceiling Type air conditioning units deliver a blend of innovative technology, energy efficiency, and contemporary design. With features like inverter technology, quiet operation, advanced air filtration, and flexible control options, they offer a compelling choice for those seeking comfort without compromising style. These units stand as a testament to Toshiba's commitment to quality and customer satisfaction in the HVAC industry.