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airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 7738
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: 4 months ago.
Category: HVAC
Customer: replied 4 months ago.
Model #KSIN009-H115.
Customer: replied 4 months ago.
Sometimes there is no cool air without PO Error
Expert:  airheatman replied 4 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 4 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 4 months ago.

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

Customer: replied 4 months ago.
The Po is showing Indoor unit. Do I need to change any circuit Board? Sometime the unit run good.
Expert:  airheatman replied 4 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 4 months ago.
how can I fix the module. Can I do it myself or I have to call a technician?
Customer: replied 4 months ago.
How can I find the module on the outside unit
Customer: replied 4 months ago.
Can I fix it myself? If yes, where can I buy it
Expert:  airheatman replied 4 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.