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Topic: Heating fan under the sink (Read 1067 times) previous topic - next topic

Heating fan under the sink

My heating fan isn't working. I'm wondering if the wire goes comes right from the Aqua-hot or
is spliced in with other fans. I just had the Aqua-hot out and did I screw up with the wiring. It
doesn't look like an easy job to get at the fan.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Heating fan under the sink

Reply #1 –
Others may know for sure, but I believe power for fan comes from AH controls.

@Rudy probably will be along soon and correct me if I'm wrong.
2014 ih45  (4th Foretravel owned)
 1997 36' U295 Sold in 2020, owned for 19 years
  U240 36' Sold to insurance company after melting in garage fire
    33' Foretravel on Dodge Chassis  Sold very long time ago

Re: Heating fan under the sink

Reply #2 –
I believe that fan is zone 2 in your year coach and should feed through the center cube relay.  Check it to see if that relay is loose and while you are there check the fuse block right above the relays to see if you have a bad fuse.  As stated Rudy will know for sure.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Heating fan under the sink

Reply #3 –
It's zone one in my coach and the fan under the the couch and the dash works so I need to know if
the is more than one wire at the cube to feed those fans. If I have time tomorrow I will pull out my
stuff and check the cube tomorrow.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Heating fan under the sink

Reply #4 –
Just in case you end up needing a new heat exchanger: Search: 1 result found for "cozy ii heat" — HeatMyRV

I keep one on hand at all times.  I have had 2 originals start leaking coolant over the past 4 years.
Dan - Full timing since 2009
2003 U320 40' Tag 2 slide

Re: Heating fan under the sink

Reply #5 –
Peter, on mine the fan power goes through an Aquastat which is on the hose. The hose must get up to a high enough temp before the fan will come on.. Many possoble points of failure including air in the hose, poor contact to the hose, etc. But you can jumper past it to test.
Mike and Loretta
Charlie our Cavapoo
1999 U320 3600 WTFE
Build 5499
Wrangler JKUR via Roadmaster and Air force One

Re: Heating fan under the sink

Reply #6 –
Quote from: Mgreen5228 –
Peter, on mine the fan power goes through an Aquastat which is on the hose. The hose must get up to a high enough temp before the fan will come on..
Mike, I have only owned my coach for eighteen years and I never knew about the Aquastat.  I have always noted the several second delay between when I call for heat with the thermostat and when the blowers begin.  I always assumed it was a timed delay regulated by the AquaHot controller.  I will have to check this out for my own education. 

Thanks for the (new) information. 
Jan & Richard Witt
1999 U-320  36ft WTFE
Build Number: 5478 Motorcade: 16599
2011 Jeep Wrangler Unlimited w/Air Force One
Jan: NO5U, Richard:KA5RIW
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Re: Heating fan under the sink

Reply #7 –
Got access to the Aqua-hot and found one wire I missed put it on with the other one I had marked with
the same number and the fan is now working. So one wire runs the fan under the sink and the other wire
runs the dash fan and the one under the couch.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport