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airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8164
Experience:  Furnace, A/C and heat pump specialist.
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My Klimare mini split unit show error code PO What is the

Customer Question

Hi My Klimare mini split unit show error code PO What is the probkem?
JA: How old is the appliance? Have you gotten error messages before?
Customer: I bought last year. I bought 2 unit together one is good but the other one giving me trouble. when the error code comes the unit turned off for 2/3 min and turned on automatically
JA: Do you plan on doing the work yourself?
Customer: Yes
JA: Anything else we should know to help you best?
Customer: Ok
Submitted: 12 months ago.
Category: HVAC
Customer: replied 12 months ago.
Model #KSIN009-H115.
Customer: replied 12 months ago.
Sometimes there is no cool air without PO Error
Expert:  airheatman replied 12 months ago.

The PO error is indicating the compressor discharge temperature is too hot.Could be a restriction in line, outdoor fan not coming on or a bad sensor.

Expert:  airheatman replied 12 months ago.

If unit is blowing but no cool air, possibly compressor is off in internal overlaod. Do you have gauges to check operating pressures when this happens?

Expert:  airheatman replied 12 months ago.

Quick question.Is the PO on indoor or outdoor unit?

Customer: replied 12 months ago.
The Po is showing Indoor unit. Do I need to change any circuit Board? Sometime the unit run good.
Expert:  airheatman replied 12 months ago.

If power is correct, which I am sure it is since it works sometimes, the module is probably the issue causing erractic behavior.

Customer: replied 12 months ago.
how can I fix the module. Can I do it myself or I have to call a technician?
Customer: replied 12 months ago.
How can I find the module on the outside unit
Customer: replied 12 months ago.
Can I fix it myself? If yes, where can I buy it
Expert:  airheatman replied 12 months ago.

You will probably need to get a Klimaire authorized dealer to determine which of the two is the issue and order the correct part.Otherwise you might get numbers off of board and motor to Google to find.

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