関連ワード:  how to tell if ac is not working    how to check if ac is not working    how to tell if ac compressor is not working    how to tell if ac thermostat is not working    how to know if ac compressor is not working in car    how to tell if ac stopped working    how to know if your car ac is not working    what to check if ac isn't working    where to complaint if ac is not working in train    how to get refund if ac is not working in train