I thought I'd ask about another problem I was having with my camper as I wait for my local Yamaha dealer to warranty my parallel cable to see if it fixes my other AC problem...
My 2004 5er has a Coleman Mach 7330D3351 thermostat installed in it. These seem pretty standard but for those unfamiliar, this thermostat has two slide switches.
The first one is the "System" switch. Choices are "Cool", "Fan", "Off", and "Heat". This switch seems to work as intended.
The second switch is the "Fan" switch. It has a "High" and "Low" position for "Auto", and the same "High" and "Low" positions for "On".
The issue I'm having is that it seems like the AC doesn't function in either of the "Auto" positions. I'm not talking about difficulty starting or anything like that, I'm talking about running period.
When the fan switch is in either the high or low "Auto" positions, when I switch the mode to cool, *nothing* happens. However, if I flip the fan switch to either of the "On" positions, the A/C immediately fires up and goes to work.
Am I doing something wrong? Is there some sort of time delay that I'm not letting elapse? What should be happening? My gut tells me that the A/C should immediately fire up, and that's definitely not happening.
Assuming there is a problem, what is this indicative of - thermostat failure?
I have tried to contact Coleman Mach but they won't help a mere civilian, they tell me I must take it to a service center (none within 100 miles).
Any help would be appreciated.
My 2004 5er has a Coleman Mach 7330D3351 thermostat installed in it. These seem pretty standard but for those unfamiliar, this thermostat has two slide switches.
The first one is the "System" switch. Choices are "Cool", "Fan", "Off", and "Heat". This switch seems to work as intended.
The second switch is the "Fan" switch. It has a "High" and "Low" position for "Auto", and the same "High" and "Low" positions for "On".
The issue I'm having is that it seems like the AC doesn't function in either of the "Auto" positions. I'm not talking about difficulty starting or anything like that, I'm talking about running period.
When the fan switch is in either the high or low "Auto" positions, when I switch the mode to cool, *nothing* happens. However, if I flip the fan switch to either of the "On" positions, the A/C immediately fires up and goes to work.
Am I doing something wrong? Is there some sort of time delay that I'm not letting elapse? What should be happening? My gut tells me that the A/C should immediately fire up, and that's definitely not happening.
Assuming there is a problem, what is this indicative of - thermostat failure?
I have tried to contact Coleman Mach but they won't help a mere civilian, they tell me I must take it to a service center (none within 100 miles).
Any help would be appreciated.
rockhillmanor wrote:
I had the same problem with the same thermostat when I first got my MH.
It is how the switches are located.
Look carefully at your thermostat. They put the high fan switch 'above' the 'auto' switch position.
My guess is if you look closely the lever is pushing into the high fan position not the auto.
I also would always push the temp lever down to 65 when I turned it on the first time. That thermostat temp lever is no where's near the actual temp inside the MH. It could be set where the stat thinks it's hit the desired temp you set it at and doesn't come on.
There is but a ''nano distance between the too positions''. So when you go to push on that ridiculously small lever with a finger, to put it in 'auto' unless you carefully slowly push it up into auto mode before it hits the high fan mode it you will end up into the 'high' fan position. Which will not turn your ac on auto.
But standing up looking at it it visually it looks like it is in the correct position.
I got tired of the situation and found it was easier to push it all the way up and then feel it click to come down one to auto.
And BTW some delays are longer than 3 minutes. Mine is way longer. Keep flipping those switches aback and forth and it will never come on because you are disrupting the delay over and over and over! :W
There are only 4 indents in Fan. The bottom are Lo and High. The Top is HIGH/Auto and Low/Auto. There is NO just Auto between the High and Low. Doug
I had the same problem with the same thermostat when I first got my MH.
It is how the switches are located.
Look carefully at your thermostat. They put the high fan switch 'above' the 'auto' switch position.
My guess is if you look closely the lever is pushing into the high fan position not the auto.
There is but a ''nano distance between the too positions''. So when you go to push on that ridiculously small lever with a finger, to put it in 'auto' unless you carefully slowly push it up into auto mode before it hits the high fan mode it you will end up into the 'high' fan position. Which will not turn your ac on auto.
But standing up looking at it it visually it looks like it is in the correct position.
I got tired of the situation and found it was easier to push it all the way up and then feel it click to come down one to auto.
I also would always push the temp lever down to 65 when I turned it on the first time. That thermostat temp lever is no where's near the actual temp inside the MH. It could be set where the stat thinks it's hit the desired temp you set it at and doesn't come on.
And BTW some delays are longer than 3 minutes. Mine is way longer. Keep flipping those switches aback and forth and it will never come on because you are disrupting the delay over and over and over! :W
It is how the switches are located.
Look carefully at your thermostat. They put the high fan switch 'above' the 'auto' switch position.
My guess is if you look closely the lever is pushing into the high fan position not the auto.
There is but a ''nano distance between the too positions''. So when you go to push on that ridiculously small lever with a finger, to put it in 'auto' unless you carefully slowly push it up into auto mode before it hits the high fan mode it you will end up into the 'high' fan position. Which will not turn your ac on auto.
But standing up looking at it it visually it looks like it is in the correct position.
I got tired of the situation and found it was easier to push it all the way up and then feel it click to come down one to auto.
I also would always push the temp lever down to 65 when I turned it on the first time. That thermostat temp lever is no where's near the actual temp inside the MH. It could be set where the stat thinks it's hit the desired temp you set it at and doesn't come on.
And BTW some delays are longer than 3 minutes. Mine is way longer. Keep flipping those switches aback and forth and it will never come on because you are disrupting the delay over and over and over! :W
