4. Service procedures

13)Symptom: LCD on the remote controller displays “CHECK P05”. (Negative phase detection operation warning)

Start

Section

1

Is the power supply to the outdoor No unit normal?

(Voltage defective phase?)

Yes

Yes

Does the outdoor unit operate when two of the three phases are changed? (Actuation of negative phase protector)

No

Yes

Is the fuse (F1, F2) on the indoor unit PCB blown?

Check the power breaker etc. and repair

No problem

Replace the fuse.

2

3

No

Is there a contact defect in the 3P connector?

No

Replace the outdoor PCB

Yes

Correct the connection

4

0345_M_I

14) Symptom: LCD on the remote controller displays “CHECK E15”.

Start

 

 

Yes

 

When the group of the units are

 

Repair the wiring.

installed, is there any mis-cross

 

 

 

between interunit control wiring and

 

 

refrigerant tubing?

 

 

 

 

 

 

 

No

 

 

Are the total capacities of indoor units to that of outdoor units less than 93%?

No

Are there no contact failure between outdoor and indoor units?

No

Yes

Yes

Select an indoor unit which matches with the outdoor capacity.

Check the contact.

Perform the same as “CHECK E04”.

0646_M_S

SM830076

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Sanyo XHS3632, XHS2432, CH2432, CH3632 service manual Symptom LCD on the remote controller displays Check E15

XHS3632, XHS2432, CH3632, CH2432 specifications

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