My air-conditioner is showing error codes E3, E4 etc. Timer light is blinking. What is the problem and solution to this HVAC question?
Amit k kaul Answered
a year ago
Dear Tarun : This error code shows communication gap between system.. either of your indoor unit is not getting power supply or LP switch issue... kindly call vendor for the same. Please also check error coding list provided by OEM...
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