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Old 07-06-2014, 01:26 AM   #1
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Furnace issue

The furnace in my jayco 23 b keeps cycling it will light and stay light for about 10 seconds then go out then light again is this normal any help would be great
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Old 07-06-2014, 06:00 AM   #2
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Welcome to the forum! No, it is not normal. There are a few possibilities. Your gas bottle could be nearly empty...not enough liquid left to supply the furnace but enough to get it to light. It could also be a faulty thermocouple. Could also be the excess flow check valve in the propane system is not resetting properly. Try turning the tank valve off and then opening s l o w l y a few light taps with a small hammer can also help reset a sticky valve. You might also have a faulty regulator at the tank that won't allow proper line pressure to the furnace.

Do any of the other LP appliances show unusual symptoms? Water heater work ok on propane?
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Old 07-06-2014, 07:12 AM   #3
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Could also be a limit switch. Check to make sure all your floor vents are clear and you are getting good airflow, probably not it if it's lighting at all but you never know. Does sound like you are running out of propane to me too though.
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Old 07-06-2014, 11:42 AM   #4
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Hot water and fridge burns good have full tanks of propane tapped on regulator furnace is still cycling
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Old 07-06-2014, 12:43 PM   #5
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Check in the flue for a dirt dauber nest or spider web.
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Old 07-06-2014, 01:17 PM   #6
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That is easyfix.Clean your flame sensor.
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Old 07-06-2014, 03:31 PM   #7
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To clean the flame sensor will I have to pull the furnace?
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Old 07-06-2014, 03:33 PM   #8
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Quote:
Originally Posted by Vjmahalak View Post
To clean the flame sensor will I have to pull the furnace?
No.Just use steel wool to clean it.
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Old 07-06-2014, 04:09 PM   #9
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Quote:
Originally Posted by Ali#1 View Post
That is easyfix.Clean your flame sensor.
How about a picture of it?
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Old 07-06-2014, 04:31 PM   #10
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Yes picture would help
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