Atwood Heat Pump
Boy did I make a mistake buying this piece of ****.....first off the fan runs all the time when in A/C mode.....this weekend it got into the high 40's so I turned it to heat and it cycled on and off a...
Forum Discussion
The question is, did the furnace operate correctly - that is, did the furnace run up to a temperature set on a thermostat somewhere? According to how mine work, the Furnace switch shuts the Atwood off and lets the furnace control operate the furnace by locking the relay in the Atwood unit on. That is why mine headed for the super hot realm of 90 degrees or better because nothing was telling it that the temperature was reached. But the Atwood will do that with the thermostat in heat mode, but the furnace button off, that is, it will operate it at the set point temp.
I have just been outside in my RV. I checked the temp outside was near 40 degrees. I turned on the rear unit alone and checked the inside air temp to be 50 degrees - I have a small space heater to keep things from freezing.
When I turned on the a/c it was set on Auto fan and heat - Furnace off. It started the compressor immediately and after running the compressor for 2.5 minutes it turned on the fan at low speed - by 5 min it was running at medium. The temp of the output air was 66 when the fan started and went up to 89 by five minutes. I checked it periodically as it ran and the temp was at 105 when the compressor shut down. The room temp was still about 66. The kicker was that the fan ran for awhile after the compressor shut off, but then slowed to med and low and off. Then after about 30 secs it turned the fan on for a 5 sec run then off and the compressor started again.
I measured the temp of the output in the main cabin vents, too. Even though the
front a/c heat pump was not running, the temp in those vents was the same as in the bedroom vents each time, but the main cabin did not make it to 75 (the set point temp).
As the unit ran on, the temp at the thermostat gradually rose to 74 for a setting of 75 and the wall temp got to near 70 degrees. So you can tell we have a pretty good heat leakdown rate in the bedroom. The main cabin did not get above 68 until after the bedroom was at temp for awhile.
I am planning to add the front a/c, but I have not turned on the propane so it won't start. The fan will start but the furnace won't run without fuel.
I have just been outside in my RV. I checked the temp outside was near 40 degrees. I turned on the rear unit alone and checked the inside air temp to be 50 degrees - I have a small space heater to keep things from freezing.
When I turned on the a/c it was set on Auto fan and heat - Furnace off. It started the compressor immediately and after running the compressor for 2.5 minutes it turned on the fan at low speed - by 5 min it was running at medium. The temp of the output air was 66 when the fan started and went up to 89 by five minutes. I checked it periodically as it ran and the temp was at 105 when the compressor shut down. The room temp was still about 66. The kicker was that the fan ran for awhile after the compressor shut off, but then slowed to med and low and off. Then after about 30 secs it turned the fan on for a 5 sec run then off and the compressor started again.
I measured the temp of the output in the main cabin vents, too. Even though the
front a/c heat pump was not running, the temp in those vents was the same as in the bedroom vents each time, but the main cabin did not make it to 75 (the set point temp).
As the unit ran on, the temp at the thermostat gradually rose to 74 for a setting of 75 and the wall temp got to near 70 degrees. So you can tell we have a pretty good heat leakdown rate in the bedroom. The main cabin did not get above 68 until after the bedroom was at temp for awhile.
I am planning to add the front a/c, but I have not turned on the propane so it won't start. The fan will start but the furnace won't run without fuel.
