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Post by broadstbully on Feb 27, 2024 9:43:46 GMT -5
Purchased new 387Flf recently. The coach only came with two a.c. units(1 middle, 1 back). Had our first 80° day so decided to try it out. Temp inside unit was 75° so I turned main a.c. on , set fan to auto, and temp to 74°. Unit came on, compressor kicked in, cold air coming out of living room. Not blowing hard. But coming out. Left for a couple hours and came back. Temp in living room 74°(and still running). Temp in bedroom...70°. Vents in rear bathroom blowing CONSIDERABLY higher. Change fan setting to High and checked living room vent...no change in air flow. Turned on second A.C.(rear) and set bedroom to 68°, and fan on high. No change in living room vent air flow. Closed every vent in bedroom and bathroom AND Closed bedroom and bathroom doors, thus completely islolating rear half of coach. No change in living room vent airflow. As a matter of fact, I watched bedroom thermostat continue to DROP (WITH NO VENTS OR DOORS OPEN) as the living room thermostat began to RISE. This can't be right. It's only 80° degrees out. What happens when it's 95°. Any insight would be appreciated.
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Post by laknox on Feb 27, 2024 16:31:12 GMT -5
Purchased new 387Flf recently. The coach only came with two a.c. units(1 middle, 1 back). Had our first 80° day so decided to try it out. Temp inside unit was 75° so I turned main a.c. on , set fan to auto, and temp to 74°. Unit came on, compressor kicked in, cold air coming out of living room. Not blowing hard. But coming out. Left for a couple hours and came back. Temp in living room 74°(and still running). Temp in bedroom...70°. Vents in rear bathroom blowing CONSIDERABLY higher. Change fan setting to High and checked living room vent...no change in air flow. Turned on second A.C.(rear) and set bedroom to 68°, and fan on high. No change in living room vent air flow. Closed every vent in bedroom and bathroom AND Closed bedroom and bathroom doors, thus completely islolating rear half of coach. No change in living room vent airflow. As a matter of fact, I watched bedroom thermostat continue to DROP (WITH NO VENTS OR DOORS OPEN) as the living room thermostat began to RISE. This can't be right. It's only 80° degrees out. What happens when it's 95°. Any insight would be appreciated. My first thought would be the mid-ships A/C doesn't have it's ducts connected properly; more common issue than you might think. That said, are your units ducted together or separately? Lyle |
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Post by broadstbully on Feb 28, 2024 14:05:44 GMT -5
They are ducted together. If I just put the rear a.c. on it still pushes the same, lower air pressure to the front living room vents, no matter what the fan setting is on. Rear vents blow hard, front vents next to nothing. Leaning towards what you said or a blockage in the vent.
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