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Old 03-30-2016, 05:25 AM   #1
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dash heat

I have a 2011 Monaco Knight, it's been a great MH. The dash heat blows only cold air even after long runs.

Any advice is appreciated, getting tired of $100 per hour shop charges.

Steve
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Old 03-30-2016, 06:03 AM   #2
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That should be ab easy fix. Follow the heater lines from the motor to the core in front. Are they hot. They usually have valves under the coach where they can be turned off. Could also be the temp valve is not letting water through to the front.
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Old 03-30-2016, 06:49 AM   #3
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Quote:
Originally Posted by monacoman51 View Post
I have a 2011 Monaco Knight, it's been a great MH. The dash heat blows only cold air even after long runs.

Any advice is appreciated, getting tired of $100 per hour shop charges.

Steve
Along with Ranger Smith's advice, check your coolant level.....if it's low it can affect the dash heat.
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Old 03-30-2016, 07:38 AM   #4
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Quote:
Originally Posted by Ranger Smith View Post
That should be ab easy fix. Follow the heater lines from the motor to the core in front. Are they hot. They usually have valves under the coach where they can be turned off. Could also be the temp valve is not letting water through to the front.
Your first step might be to check to see if the lines even go to the front of the coach. If the coach had a bad heater core, they might have been cut off in lieu of repairing the core.
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Old 03-30-2016, 10:57 AM   #5
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Ok, well, yes, check the heater lines and see if they are connected. If they are, then verify your valve is working, hot on both sides when heater is on. If you have owned the coach since it was new, then the heater core bypass is probably out. Heater cores for moho's are crazy expensive, and the labor to install them is even worse because frequently the box they are contained in, have disintegrated, like to the tune of $1200. I have used foam and aluminum tape to make repairs to these in the past when I couldn't find the parts to replace them. Very labor intensive...... But that said, start at the valve, make sure it is getting activated. Often times they are vaccum operated and a leak will make them useless when an unrelated dash repair is preformed. Lastly, your outside vent door could be stuck open. Lazy way to test it is to tape it over with some ductape. Good luck, nothing worse cold feet.....
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