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Old 01-12-2015, 09:49 AM   #1
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FC 20' Fresh Water Tank Heat Pad Switch Not Working

We tried our tank heat pads for first time last night and grey tank switch worked but fresh water tank heat pad switch did not light up when connected to 30 amp shore power. No useful info in manual....FC 20' FB is 2014. Furnace set to 60 and not below freezing last night but need help to trouble shoot as we expect periodic freezing in NM and AZ.
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Old 01-12-2015, 11:12 AM   #2
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The heaters are 12volt, so maybe check the 12v fuses.
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Old 01-12-2015, 11:19 AM   #3
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I have only tried mine on my 2014 20' FC a couple of times so I am not at all sure of this answer, but I think there is a thermostat in series with the switch and it will not turn on until the temp at the thermostat falls below it's set point. On my limited testing I recall the lights not coming on at some temps.

I don't know what the set points are or exactly where the thermostats are located, but just thinking now, if the water tank is full there is a lot of thermal mass in it, and it might take a lot longer before the tank is cool enough to allow the heat pad to run.
The gray water tank, which may be empty and cool off faster may allow the heat pad to come on.

Please understand that I am speculating here. But you may not have a problem at all, just it is not cold enough to allow the water tank heater to operate.
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Old 01-12-2015, 11:41 AM   #4
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On my '07 20', the light always came on if you flipped the switch, regardless of ambient temperature. Certainly could be different on a '14.
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Old 01-12-2015, 10:58 PM   #5
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Thanks for the input! We were able to reach service tech at Colonial whom offered several suggestions. We were " on the road" today with 57 and above freezing tonight. Plan to arrive in warm sunny AZ tomorrow. But we will be sure to recheck fuses, switch out toggle switch with grey water one to assess if LED is just out. There is no easy way to check to see if the fresh water tank warmer pad is actually working. We just want to be prepared for the inevitably temp drops as we travel around desert country. We are likely to proceed very cautiously as we camped in our FC for past 10/12 days still winterized. Appreciate your input and will post outcome when we know the issue.
Kind regards,
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Old 01-12-2015, 11:05 PM   #6
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Anyone know how to pull the rocker switches out to work on them? I'm not sure how they are held into the wall and would rather know what I am doing instead of guessing? Do they pry out or what?

Ditto on the MicroPulse tank gauge panel gizmo--no clue how to access the backside wiring...before it breaks. 😄


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Old 01-13-2015, 10:24 AM   #7
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You could pull the fuse for the heaters and measure the current draw with an ammeter when the switch was turned on and off.
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Old 01-14-2015, 06:03 AM   #8
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Quote:
Originally Posted by FCloud9 View Post
Thanks for the input! We were able to reach service tech at Colonial whom offered several suggestions. We were " on the road" today with 57 and above freezing tonight. Plan to arrive in warm sunny AZ tomorrow. But we will be sure to recheck fuses, switch out toggle switch with grey water one to assess if LED is just out. There is no easy way to check to see if the fresh water tank warmer pad is actually working. We just want to be prepared for the inevitably temp drops as we travel around desert country. We are likely to proceed very cautiously as we camped in our FC for past 10/12 days still winterized. Appreciate your input and will post outcome when we know the issue.
Kind regards,
FCloud9

F-cloud - we met on the 20 footer thread. We are also on the road to AZ from PA. Hate to see you be so cautious that you don't enjoy your Stream -- tough to stay winterized for so long. For what it's worth, we've made numerous trips this time of year. Generally head due south from PA (usually to the Carolinas) and dewinterize that first night on the road. The key for us has been to have full hookups and to allow the interior of the Stream to completely warm up. I.e. Give time for the wood to absorb heat. Some think it bad, but we travel with the furnace on and set at 50. On especially cold nights we leave the cupboars doors and bath door open for circulation. FYI our first year from PA we traveled west to Iowa before traveling south (dumb) - we woke up to 6" of snow on the camper and 2 degrees! No freeze prob except for us of course. Don't worry too much and enjoy. But be flexible. All these ideas work, until they don't 😁.
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Old 01-22-2015, 01:44 PM   #9
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We have been de-winterized since Big Bend National Park. Really enjoying our time in AZ! The tank heaters & switches are working just fine w/o any explanation for why the switch light did not work first try. Fortunately since our arrival in AZ...we have not had temps below freezing!
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