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Old 07-20-2021, 01:51 PM   #1
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No power to A/C

My Cedar Creek 34RL2 has been in storage for almost two years. We have been kind of under the weather. Decided to take it out and go on a short trip. I made an appointment to put new tires on and re-pack wheel bearings. Almost everything worked except the air conditioner and fantastic fan. They are dead. Does anyone have an idea where to start troubleshooting? Thanks
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Old 07-20-2021, 02:13 PM   #2
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Isn’t the fantastic fan 12 volt and AC 120? I would start with the obvious, the power center. Breaker for AC and fuse for fan.
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Old 07-20-2021, 02:14 PM   #3
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The fantastic fan runs on 12 volts DC and the Air Conditioner runs on 120 Volts AC, so they are most likely unrelated. Have you checked breakers for the AC?

Does the Fantastic fan make any noise? It uses a current sensor system to shut off the lid motor when it is fully closed or open. Sometimes, the lid will stick to the sealing gasket. You may have to climb on the roof and help it as someone turns it on.
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Old 07-20-2021, 02:22 PM   #4
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That is true but the air conditioning control is 12v to a relay.
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Old 07-20-2021, 02:27 PM   #5
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That is true but the air conditioning control is 12v to a relay.
True. The thermostat is 12 volt DC.
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Old 07-20-2021, 02:44 PM   #6
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True. The thermostat is 12 volt DC.
One of my friends had this problem. I tested his battery and it was bad. He put in a new battery and his A/C woke up.
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Old 07-20-2021, 02:57 PM   #7
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Thanks for reply. I checked the batteries with a meter (13.2v). I checked the A/C breakers. Can find no fuse for Fantastic Fan. I am missing something somewhere.
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Old 07-20-2021, 03:38 PM   #8
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Is the fan in the bathroom? If so does the light work? For 120 volt, do all receptacles work?
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Old 07-20-2021, 03:44 PM   #9
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My Cedar Creek 34RL2 has been in storage for almost two years. We have been kind of under the weather. Decided to take it out and go on a short trip. I made an appointment to put new tires on and re-pack wheel bearings. Almost everything worked except the air conditioner and fantastic fan. They are dead. Does anyone have an idea where to start troubleshooting? Thanks
Start with the basics...
Do you have 12v power at the Fantastic Fan or the wall control if so equipped?
Do you have 12v at the A/C thermostat?
Do you have 120v at the A/C unit?

We can all make some guesses but until you do some basic electrical checks they are just that, guesses.
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Old 07-20-2021, 04:35 PM   #10
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That is true but the air conditioning control is 12v to a relay.
Oops! You're right.
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Old 07-21-2021, 02:31 PM   #11
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No AC Fixed

My Coleman 8330-3862 digital thermostat was dead. Hence, no AC no system fan, nothing was working with the heat-cooling. Took off thermostat and checked to make sure all wires were tight and coming in the back. When I took off the front cover to the Thermostat, there was a 2 amp glass fuse about 1 1/4" long. It looked ok but I decided to check with my meter. Turns out it was no good. I found a replacement, 2 amp, at my local auto parts store and replaced it. ALL is now working. I have no idea why this blew? but has been ok for a few weeks now. Hope this helps?
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Old 07-21-2021, 02:49 PM   #12
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The fantastic fan runs on 12 volts DC and the Air Conditioner runs on 120 Volts AC, so they are most likely unrelated. Have you checked breakers for the AC?

Does the Fantastic fan make any noise? It uses a current sensor system to shut off the lid motor when it is fully closed or open. Sometimes, the lid will stick to the sealing gasket. You may have to climb on the roof and help it as someone turns it on.
No need to climb on the roof to get the lid unstuck. Just twist the 4 screen holders and remove the round screen. Then push up on the lid underneath with some kitchen handle tool and turn the manual twist knob. It will then pop off the sealing gasket.
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Old 07-21-2021, 03:01 PM   #13
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No need to climb on the roof to get the lid unstuck. Just twist the 4 screen holders and remove the round screen. Then push up on the lid underneath with some kitchen handle tool and turn the manual twist knob. It will then pop off the sealing gasket.
I know all of my Maxxair fans have this option but none of my Fan-tastic fans did. Have they changed the interior trim/screen?
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Old 07-21-2021, 03:07 PM   #14
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No need to climb on the roof to get the lid unstuck. Just twist the 4 screen holders and remove the round screen. Then push up on the lid underneath with some kitchen handle tool and turn the manual twist knob. It will then pop off the sealing gasket.
I didn't know that, but then, mine is so high up that I can't reach it. The one time it happened to me, I just climbed up the ladder on the back of the 5er. I'll have to check that out because I'm sure mine could use a good cleaning.
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Old 07-21-2021, 03:19 PM   #15
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on the fan maybe the switch is sticking or went bad
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Old 07-21-2021, 03:34 PM   #16
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I didn't know that, but then, mine is so high up that I can't reach it. The one time it happened to me, I just climbed up the ladder on the back of the 5er. I'll have to check that out because I'm sure mine could use a good cleaning.
Suggestion for cleaning: This following can be done inside if you can reach your fan. Remove the fan blades and screen and clean. With a rag, wipe the underside of the vent cover and anything else looking dirty. Apply some slide lubricant on gasket, Next I pulled the armature out of the motor and wipe ends and add a few drops of oil and reassemble. Did that 2 years ago and everything works like new and very quiet. You can't do all this up on the roof.
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Old 07-21-2021, 06:46 PM   #17
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Any glowing lights on your 12VDC fuses in electrical service panel?
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Old 07-26-2021, 09:33 PM   #18
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I had to take unit to RV service for new tires and bearings. While it was thereI had them check “ no power to a/c and fantastic fan”. They found wires chewed by rodents. They fixed a/c but not fan. ( later )
Thank you to all who suggested things that I could try.
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Old 07-27-2021, 09:13 AM   #19
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Thanks for coming back and letting us know! Darn animals! I've paid thousands throughout years repairing rodent wiring damage. Ground hogs are my problem, anything they can reach from ground is fair game, they seem to love wires for some reason. And no matter how many I snipe, they keep coming back!
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Old 07-27-2021, 09:19 AM   #20
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They found wires chewed by rodents.
Cheap Chinese soy-based plastic-covered wire. A tasty treat for rodents.

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