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Open Roads Forum  >  Class A Motorhomes

 > No heat and no air conditioning

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98 700SX

Anchorage, AK

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Posted: 06/12/12 07:13pm Link  |  Print  |  Notify Moderator

I have a 2001 Harney Coach Works Riata and last week we went camping and lost heat in the RV. The furnace makes a clicking noise when I turn on the thermostat so I can tell something is trying to happen. I started to open the panel to get to the furnace, but decided to check the A/C as well, it also clicks, but nothing happens. Any ideas? I need to go camping this weekend.


2001 Harney Coach Coach Works Riata
2008 Cadillac Escalade EXT
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2007 Raptor 700

Fishinghat

Western Washington, USA

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Posted: 06/12/12 08:21pm Link  |  Print  |  Notify Moderator

I'll guess and suggest to look to see if your battery is charged up and connections are tight. Low 12 volt power could cause the relays to not function correctly. Since you're connected to shore power (you tried the A/C), your converter/inverter should keep the battery charged up, so I'm not sure what else to suggest to check. Good luck.


Holiday Rambler Navigator DP, Hummer, and Honda VT1100C Shadow


98 700SX

Anchorage, AK

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Posted: 06/13/12 08:26am Link  |  Print  |  Notify Moderator

Thanks for the replies, I'll check out the thermostat after work. Thing about the thermostat is that there are two, one in front and one in back. There is only one furnace, so I'm thinking there are two thermostats to control the temp in front or back, but I assume whichever one is set higher will control the overall temp in the coach? I could be wrong.

I also replaced the batteries this spring, the water heater and stove both work fine, so I'm sure it's not gas.

I'll take apart both thermostats after work and see if that helps.

Any other ideas?

bluwtr49

Green Valley, AZ

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Posted: 06/13/12 06:22am Link  |  Print  |  Notify Moderator

Had a similiar thing happen when I picked up my coach at the dealer after service. A/C just clicked and nothing happened. Turned out the coach power switch was turned off.


Dick

2000 40" DP Beaver Patriot Thunder Cat C-12 425 HP, 1550 Tq
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Branson in Tucson

Tucson,AZ

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Posted: 06/13/12 07:56am Link  |  Print  |  Notify Moderator

Try taking the Thermostat cover off and look and clean the contacts. I had similar problem and just removed the fuse and put it back in and it all worked. Some time dust gets in there.

rgatijnet1

Florida

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Posted: 06/13/12 06:30am Link  |  Print  |  Notify Moderator

Possibly a thermostat issue if they both go through the same unit.

98 700SX

Anchorage, AK

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Posted: 06/14/12 07:08pm Link  |  Print  |  Notify Moderator

OK, thermostats are good, A/C does work front and rear.

It almost seems like the fan is out on the furnace, but the local RV Service tech doesn't think so. I can't get in until Monday for him to check it out, and I'm leaving after work tomorrow.

Any ideas?

98 700SX

Anchorage, AK

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Posted: 06/14/12 08:43pm Link  |  Print  |  Notify Moderator

It works completely front and rear. When I turn it to furnace, I hear a click under the stove where the furnace is located, but no fan. I can adjust the thermostat and hear a click in the furnace as well.

khahuna

Clermont. FL

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Posted: 06/15/12 05:04pm Link  |  Print  |  Notify Moderator

I've got a 2000 Riata. Had a similar problem a few years ago. Open the engine cover ... on the panel at the foot of the bed are several electrical connections and fuses ... there are three 125 amp buse fuses ... take an ohm meter and make sure one or all are not blown. I had to special order the correct size fuse but if there is a car stereo shop near you they sell fuses that will work. They are larger (200 Amp I found) but you at least will have heat till you get the correct size.


Dave & Jan
'00 37' Harney Riata MH
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Izzy - gone 08/12/2013 but not forgotten


crasster

Dallas

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Posted: 06/14/12 07:34pm Link  |  Print  |  Notify Moderator

Confused, the A/C does work completely or does it click?


4 whopping cylinders on Toyota RV's. Talk about great getting good MPG. Also I have a very light foot on the pedal. I followed some MPG advice on Livingpress.com and I now get 22 MPG! Not bad for a home on wheels.


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