Toshiba RAV-SM804UT-E, RAV-SM1404UT-E, RAV-SM1104UT-E, RAV-SP1104AT-E, RAV-SP1404ATZG-E 95

Models: RAV-SP1104ATZG-E RAV-SP1104ATZ-E RAV-SP1404ATZ-E RAV-SM804UT-E RAV-SP1404AT-E RAV-SP1404ATZG-E RAV-SP1104AT-E RAV-SM1104UT-E RAV-SM1404UT-E

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Check

Outdoor

Check and troubleshooting

code

LED display

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

 

 

 

[P19]

<Display 1> <Display 2>

[4-way valve inverse error]

¡¥

¡

¥

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature sensor check

 

¡

l

 

Is operation of

 

 

 

 

 

YES

 

 

TE sensor CN601

 

l

l

 

4-way valve normal?

 

 

 

 

 

 

 

TS sensor CN600

 

 

¡

¥

 

(Check pipe temp., etc. in

 

 

 

Indoor TC sensor

 

 

cooling/heating operation.)

 

 

 

 

 

 

 

 

 

 

Defect Correct and repair

 

¡

¡

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is the coil

NO

 

 

 

 

 

 

 

 

 

 

 

 

resistance value of 4-way valve

 

 

 

Replace coil of 4-way valve.

 

 

 

 

 

 

 

between 1.3 and 1.6k?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check operation of

Error

 

 

 

 

 

 

 

 

 

Check outdoor P.C. board.

 

 

 

 

outdoor P.C. board.

 

 

 

 

 

 

 

 

 

 

Defect replace

 

 

 

 

(See below.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check 4-way valve.

 

 

 

 

 

 

 

 

 

 

Defect Replace

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check method of outdoor P.C. board operation (Self-hold valve type)

1)Set SW804 of Dip switch as the following figure and then push SW801 for approx. 1 second to check exchange operation to cooling cycle/heating cycle.

Power is turned on for approx. 10 seconds.

When checking again, check operation 1 minute or more after the first check because exothermic of part (Coil, resistance R700) is large.

(There is no problem when coil is not connected.)

2)After check, turn off all the Dip switch SW804.

 

Exchange to cooling cycle

 

Exchange to heating cycle

SW804 SW801

CN701

SW804 SW801

CN701

 

4

 

1

 

4

 

1

 

3

 

 

 

3

 

 

ON

2

Push

 

ON

2

Push

 

1

4

1

4

 

 

 

DC200V or more

 

 

 

DC200V or more

Note) Check by tester

Analog tester : Good if over DC200V

Digital tester : Good if Max. value is over DC200V though the varied value may be displayed.

– 95 –

Page 95
Image 95
Toshiba RAV-SM804UT-E, RAV-SM1404UT-E, RAV-SM1104UT-E, RAV-SP1104AT-E, RAV-SP1404ATZG-E, RAV-SP1404AT-E, RAV-SP1404ATZ-E 95