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Old 02-22-2017, 11:17 AM   #1
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Brand: Thor Motor Coach
Model: A. C. E. 30.1
State: Indiana
Posts: 122
THOR #1488
Clearing windshield

Just wanted some more discussion about clearing windshield. Thanks to leshunter for making me think about it while in front of my computer and not going down some highway.
We also have had a problem clearing the windshield, sometimes while raining or when cold outside. Normally I will fire up the 2015 ACE and turn on the defrosters with heat until the windshield clears. Wife usually drives early in the morning and does not like the hot air off the windshield. Turn the defrosters off and sometimes the windshield will start fogging up again. Turn the defrosters back on and the whole windshield is fogged up in seconds sometimes to the point we need to stop until it clears again.
Apparently we are not the only ones with this problem so would love to hear what kind of solution you have come up with. Jim.
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Old 02-22-2017, 11:22 AM   #2
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Originally Posted by 04fxsts View Post
Just wanted some more discussion about clearing windshield. Thanks to leshunter for making me think about it while in front of my computer and not going down some highway.
We also have had a problem clearing the windshield, sometimes while raining or when cold outside. Normally I will fire up the 2015 ACE and turn on the defrosters with heat until the windshield clears. Wife usually drives early in the morning and does not like the hot air off the windshield. Turn the defrosters off and sometimes the windshield will start fogging up again. Turn the defrosters back on and the whole windshield is fogged up in seconds sometimes to the point we need to stop until it clears again.
Apparently we are not the only ones with this problem so would love to hear what kind of solution you have come up with. Jim.
Yea had this problem a few times, here is what I have been using and haven't fog up sense but I don't think the conditions have been just right for it yet. https://www.amazon.com/Rain-X-630046...anti+fog+spray
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Old 02-22-2017, 11:23 AM   #3
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Model: Axis 24.1
State: Michigan
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When I drove my EV I had to deal with frequent fogging and attempted a bunch of different solutions (EVs and winter don't mix: the heater is usually a big resistor which burns a lot of the battery/range).

A few thoughts:
  • The air to defrost doesn't have to be warm, in fact using the A/C may work as well since it removes the moisture from the air
  • Coat the inside of the windshield with some anti-fog solution. It doesn't completely remove the fog but it does minimize it.
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Old 02-23-2017, 01:00 AM   #4
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Brand: Thor Motor Coach
Model: Hurricane 32A
State: Florida
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Defroster, AC on, and aux fans (my Hurricane has 2 mounted at top of windshield) I have found to be pretty effective.
Just keeping the air moving seems to keep it from fogging (or clears it). Doesn't have to be blasting hot air.

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Originally Posted by JamieGeek View Post
When I drove my EV I had to deal with frequent fogging and attempted a bunch of different solutions (EVs and winter don't mix: the heater is usually a big resistor which burns a lot of the battery/range).
It's EV and NORTHERN winters... Yet another reason to move south... lol - couldn't resist.
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Old 02-23-2017, 02:02 AM   #5
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[QUOTE=gmc;58643]Defroster, AC on, and aux fans (my Hurricane has 2 mounted at top of windshield) I have found to be pretty effective.
Just keeping the air moving seems to keep it from fogging (or clears it). Doesn't have to be blasting hot air.

Absolutely the best way to do it!!!
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Old 02-23-2017, 11:28 AM   #6
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[QUOTE=SuperD;58651]
Quote:
Originally Posted by gmc View Post
Defroster, AC on, and aux fans (my Hurricane has 2 mounted at top of windshield) I have found to be pretty effective.
Just keeping the air moving seems to keep it from fogging (or clears it). Doesn't have to be blasting hot air.

Absolutely the best way to do it!!!
Yup! I panicked the first time I drove my Hurricane 35M from the dealer and it started fogging in heavy rain. I was by myself on an interstate, and hadn't spent an adequate amount of time learning all of the controls on the dashboard. Lesson learned! As mentioned, I learned to turn my aux fans towards the windshield, adjusted the air vents towards the windshield, and now have the defroster and AC on, and haven't had any further problems.
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