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ktm500mx · 12-09-2010, 12:57 PM

I was doing a walk though on my rig leaving for fl soon. when I checked my heater the thermostat did not recognize the heater. I did a re-boot on the thermosat now all it shows is code EE. tried multable reboots once i let go of zone and mode it returns to code EE. shows code FF while holding zone and mode.
thx In advance.
Mike

RobRV · 12-09-2010, 01:17 PM

Let Me guess Duotherm CCC with 4 Buttons! At least Your's is showing something Mine went totally Dead! Have bypassed it for now using a standard Thermostat wired directly to the Furnace. I will deal with the AC If and When I need it!

ktm500mx · 12-09-2010, 02:17 PM

nope this is a 5 button model
later Mike

GaryKD · 12-09-2010, 02:47 PM

Hi ktm500mx,
This might sound a bit off the wall, but it might be a cheap and easy fix.
1. Turn off all florescent lights.
2. Reboot the T'stat. (No florescent lights)
3. Start the HVAC system. (No florescent lights)

"007" · 12-10-2010, 03:39 PM

Maybe you need this PDF for 5 button control.

ktm500mx · 12-10-2010, 03:45 PM

The wind died down and I was able to go on the roof and found that the conections on the communicaton boxes were very dirty. after cleaning them and doing dome genral re sprucing inside both air conditioners
everything is now working great. I am now ready to bomb down I95 soon and hope to find warm weather in florida.
thx everyone Mike

"007" · 12-10-2010, 04:44 PM

Good job ktm your the second one with the dirty connections have to remember the need for routine maintenance.

ktm500mx · 12-12-2010, 10:22 AM

I cleaned them in the spring and 6 months they were very grungy.
I think this spring I may spring for 2 new 15k airconditoners. I need to do the math to see if the generator and the shore power has enough headroom for the upgrade
thx again everyone. Mike