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restlessways's avatar
restlessways
Explorer III
Jun 09, 2013

HELP!! No AC, heat stuck on full- 2000 Lance 1030

As the message indicates, I am having trouble with the HVAC system in my 2000 Lance 1030. The Atwood heater blows hot and won't stop, cannot be controlled by the thermostat, and the AC will not turn o...
Chris_Bryant's avatar
Chris_Bryant
Explorer II
Jun 10, 2013
On that model everything is controlled by the roof unit. There are 6 wires running from the thermostat to the roof unit. The thermostat controls the roof unit by grounding the leads- IOW, white is the furnace lead, so ground the white wire will activate the furnace relay in the roof unit. Tan is fan, blue is high fan and yellow is cool (compressor).

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