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Old 04-06-2012, 02:35 AM   #1
bush's Avatar
Join Date: Jun 2011
Posts: 41
E1 code. install new thermostat

i have the E1 error code again and tried to reset it like i did here

but it didt work. so i was going to install a new thermostat a honeywell RTH111B. so i went to take the factory one out and only 3 wires are connected. red,green,white.

there are 4 wires that are not used. yellow,blue,brown, and a bare wire.

so i went to the A/C unit to find where all the wires go and they are all cut but the 3 used on the factory thermostat.

so where do i go from here???

2011 puma unleashed 298fqu toyhauler.
hauling a 2012 polaris RZRS
pulled by a 2006 chevy 3500 drw 4x4 duramax lbz
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Old 04-06-2012, 06:23 AM   #2
Site Team - Lou
Herk7769's Avatar
Join Date: Oct 2009
Location: South Eastern PA
Posts: 19,794
Got this from a manual on Carrier Thermostats:

Table 4 — Thermostat Error Code Descriptions

The system is not communicating properly. Call the local Carrier representative for service


The temperature sensor has failed. Call the local Carrier representative for service


There is an internal memory failure. Call the local Carrier representative for service


The humidity sensor is not working. Call the local Carrier representative for service

I am thinking the wires are not hooked up right.

Another solution...


Lou and Laura with Bella - German Short Hair Pointer
2008 GMC Sierra 2500HD Crewcab SB Allison Duramax
2010 Flagstaff 8526RLWS - Superglide 3300
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