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Old 09-23-2013, 08:03 PM   #1
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No Heat

94 coachman ,santara 32 ft ,gas
Can't get any heat from dash heater...The coach spent last few yrs. in the south & didn't need it.. Could it be a valve somewhere needs turned or possibly a thermostat? Fan & controls seem ok, real Thanks
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Old 09-23-2013, 09:39 PM   #2
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Warmup the engine, set temp to hot, and fan on high. Open the hood, passenger side you will see 2 - 1" hoses going into the firewall and under the dash. One of the hoses will have a valve on it. feel the hose before and after the valve, if it is working properly, the temperature would be the same, hot. If the temp is different you need to find out why the valve is not opening. It could be cable operated or vacuum operated valve. There may be a manual valve that has been installed and it may need to be opened.
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Old 09-23-2013, 09:54 PM   #3
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Ok thanks, I will do so in the morn. I have been in there but for other reasons & didn't notice any valves but I will look harder at it....
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Old 09-30-2013, 11:44 PM   #4
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I have two valves near the engine that must be open for coolant to circulate up to the heater core in the front end, and also have the valve at the front end that regulates how much volume passes thru in order to regulate the air temp over the heater core. Good luck, HarveyP
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Old 10-01-2013, 12:47 AM   #5
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If the valve is operating when you move the slider control on dash, an additional valve may have been added to shut heat off in summer. If the original control valve is open but still no coolant flow and you don't see an additional valve under hood or dash, perhaps your heater core is clogged up from infrequent use. In that case, loosen clamps on the heater hoses.disconnect, and use a garden hose to try flushing heater core out. Alternate water hose in both inlet and outlet connections until water flows cleanly.
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Old 10-01-2013, 05:41 AM   #6
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I found the problem, the control wire had came loose from the slider control inside right where it attaches to the lever.
Shoved it over where the lines enter the Banks system ,heater core & instant heat.
I can't believe I froze last April & this is all I needed to do ,LOL .It was so cold even now I can't look back and laugh... Thanks again everyone.
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Old 10-01-2013, 09:48 AM   #7
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Glad you found the problem and reported how you solved it. That's what makes this Forum a great resource! Happy trails!
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