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Jerry
Jerry, HVAC Technician
Category: HVAC
Satisfied Customers: 422
Experience:  Epa universal certification, hearth products specialized.
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LG Multi Type Air Con. Room unit switch on, then immediately

Customer Question

LG Multi Type Air Con. Room unit switch on, then immediately shut down, but one unit shows CH and 05 alternating. Generator does not switch off. Fault not covered in manual. Can I sort this myself? Thank you. Ken
Submitted: 3 months ago.
Category: HVAC
Expert:  JamesI replied 3 months ago.

Hi Ken,

CH05 suggests there is a communication fault with the air con system.

Are you able to advise why you cant switch off the external air con unit with the isolater switch?

Customer: replied 3 months ago.
Hi James
Thank you for your response. I couldn't turn the rotary isolator switch for some reason. Eventually I found I could shut the whole system down at the mains trip-switch board. Did so, then remembered that such electronic systems left switched off for 5+,minutes, e.g.TVs, often sort themselves out. So I switched it all back on again and everything promptly worked properly. Simple. Problem solved.