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Old 10-15-2015, 07:54 AM   #1
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Electric Heater Failed

Good Morning All,

I woke up this morning and knew something did not sound right in the rig, but was not quite sure what. Also found the dog in bed with us, which never happens.

It took a few minutes to put things together, but I finally figured out the gas heat was running. The vent was on Maple's usual sleeping space so she had joined us for a cooler space.

I checked the thermostat and it was definately set to Electric. I shut it down and restarted the heat again on electric and the gas heat came on. I checked the breakers everything looks good and the A/C is functioning... That was a miserable test to conduct on an already chilly morning.

Looking for any suggestions you might have for me. While I am happy to discover that in case of electrical failure the heat will default to gas, I have three more nights of cold camping and am loath to burn through my propane supply
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Old 10-15-2015, 07:58 AM   #2
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Power down the unit, break out the DVM or VOM and check for continuity across the heater coils.


If OK, check for power to the coils and chase backwards from there...
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Old 10-15-2015, 08:03 AM   #3
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Funny how the heat never fails in the summer time! I had one of my Vornado's heaters bite the dust yesterday and this morning awoke to a tripped breaker on another heater.

Hope you get it fixed. We don't have the electric option but use the fireplace and floor heaters.
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Old 10-15-2015, 08:16 AM   #4
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If the outside temps are below freezing the unit will shut down to protect itself. This electic heat pump can only be used in temps above 32 degrees due to it's operation.

The only option that will work is if you have the optional "heat strip". If factory we do not have that strip and the gas kicks on as a backup.
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Old 10-15-2015, 08:29 AM   #5
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Quote:
Originally Posted by 3'senough View Post
If the outside temps are below freezing the unit will shut down to protect itself. This electic heat pump can only be used in temps above 32 degrees due to it's operation.

The only option that will work is if you have the optional "heat strip". If factory we do not have that strip and the gas kicks on as a backup.
Are the heat strips a option when new!
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Old 10-15-2015, 08:50 AM   #6
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Only the Mach 8 Heat pump version as I understand it. The heat strip I believe is over and above the heat pump. You can add the electric strip as far as I know, but not from the factory unless they are doing that too now.

Mine is a heat pump and kicks off when under 32 degrees and the gas furnace kicks on regardless of the setting on the thermo. There is a sensor built into the unit that goes to the auxilary heat and in my case like many others that is the furnace.
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Old 10-15-2015, 08:57 AM   #7
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Quote:
Originally Posted by 3'senough View Post
If the outside temps are below freezing the unit will shut down to protect itself. This electic heat pump can only be used in temps above 32 degrees due to it's operation.
Mountains are cool but not quite that low yet... Of course the temp guage could be off. Do you know if the system resets on its own or is there something I would need to do?

Further...

May have answered my own question... I shut off the main power for a minute and restarted... It is now running!

Thanks again to the JOF Family!
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Old 10-15-2015, 04:06 PM   #8
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I have also learned that if you set the thermostat more than 3 degrees above the interior temperature when you select the heat pump it will kick on the gas furnace first. So if the interior temp is 60F I set the desired temp to 63F and turn on the heat pump. Than as the place warms up I slowly move the desired temperature up one degree at a time until I have reached the desired setting. Using that technique prevents the gas furnace from kicking in.
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Old 10-15-2015, 04:24 PM   #9
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Quote:
Originally Posted by 3'senough View Post
If the outside temps are below freezing the unit will shut down to protect itself. This electic heat pump can only be used in temps above 32 degrees due to it's operation.
The actual set point is closer to 40 for the heat-pump to switch to gas per Coleman. That will vary from unit to unit and how soon the temps inside the shroud drop.
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Old 10-15-2015, 05:13 PM   #10
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My experience is as Grumpy said, below 40 degrees the heat pump is ineffective and the gas furnace kicks on. It also kicks on when the difference between setting and actual is 4 degrees or more. In cold weather you will be joining the propane frequent buyers club. In addition to the fireplace heater (if you have on) I would run a small space heater. 2 space heaters if no fireplace. The little ceramic heaters throw off a lot of heat.

Saw another post a little while ago were they said they ran through their propane in a weekend in freezing temps.
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