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Old 11-09-2008, 04:18 AM   #1
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Need some advice. Turned heat pump on the other day and small pieces [1/16th of inch] of compacted dust came out of the ducts.
Is there some type of way to clean the ducts and the heat pump fins of this dust or is it back to the dealer.
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Old 11-09-2008, 04:18 AM   #2
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Need some advice. Turned heat pump on the other day and small pieces [1/16th of inch] of compacted dust came out of the ducts.
Is there some type of way to clean the ducts and the heat pump fins of this dust or is it back to the dealer.
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Old 11-09-2008, 05:40 AM   #3
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Did you have the same dust with the AC ?
I am no expert on RV Heat Pump, but on the residential units I have owned. The air flow is exactly the same. The heat and cool is provided via a reversing valve on compressor.
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Old 11-09-2008, 08:45 AM   #4
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No dust with A/C on this showed up when I put the heat pump on. I am wondering if the area that heats up has a built up amount of dust on it and is a problem that has to be cleaned.
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Old 11-09-2008, 06:27 PM   #5
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I think on the cool cycle the fins are moist from condensation. On heat they are dry.Maybe dust caked on during the cool cycle and is coming loose with the heat.
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Old 11-10-2008, 12:46 AM   #6
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Bob is probably right. The evaporator has had time to dry and the dirt on the coil has come loose. You should be able to clean the coil first with a soft brush and vacuum cleaner. Then use a mild coil cleaner on it. The only way to get it out of the duct is to blow it out.
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Old 11-10-2008, 04:52 AM   #7
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Thanks for the replies. The DW said 'no way are you going to mess with the A/C-heat pump" so I guess I'll have to go for service.
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Old 11-10-2008, 06:10 AM   #8
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Keeping the filters clean and in place should prevent the dust from getting to the coils in the first place.That's their job.
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Old 11-11-2008, 04:50 AM   #9
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Thanks for that great advice BOB, but I have spare filters that get changed out every 2 weeks and in some parts of the country more offen.
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Old 11-11-2008, 05:25 PM   #10
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read & learn,
I use electrostatic filters for my 05DSDP. I purchased electrostatic filter material for a window unit and made my own filters including an extra set.
I feel like it does a better job of trapping dirt than the foam Newmar filters. The down side is that they are probably a little more restrictive. So far no problems.
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