air conditioner / Thermostat problems
Good morning everyone. Should start by saying I'm new to the whole forum thing and new to RVing. So I apologize if I don't have all the information you need, but I will do my best to get you the infor...
Forum Discussion
1. You cannot use a 4 button where a 5 button is used. The upper control boards cannot communicate correctly. AS you found out.
2. EE is a COMMUNICATION fault. LACK of communication. This means that Phone type COMM cable is either rusted at the Roof AC connection point(usually this). Or the cable has been cut or damaged. Odds are you have a Penguin Unit(series 65). If so, then rust/corrosion is likely since you have a 20 year old unit. Your model you should be able to access the Control boxes from in side the unit right above the AC ceiling filter plate. You will see the quick connect phone type cables plugged into a splice type connection. Disconnect them and check for rust. The normal sequence on Monaco is to run the COMM cable from the wall tstat to the FRONT AC and then another COMM cable from the front AC to the rear AC. Make sure you check BOTH AC COMM cable connections. Bad connections are either AC will cause wall tstat problems. Doug
2. EE is a COMMUNICATION fault. LACK of communication. This means that Phone type COMM cable is either rusted at the Roof AC connection point(usually this). Or the cable has been cut or damaged. Odds are you have a Penguin Unit(series 65). If so, then rust/corrosion is likely since you have a 20 year old unit. Your model you should be able to access the Control boxes from in side the unit right above the AC ceiling filter plate. You will see the quick connect phone type cables plugged into a splice type connection. Disconnect them and check for rust. The normal sequence on Monaco is to run the COMM cable from the wall tstat to the FRONT AC and then another COMM cable from the front AC to the rear AC. Make sure you check BOTH AC COMM cable connections. Bad connections are either AC will cause wall tstat problems. Doug
