We have a 1991 Jayco travel trailer with a Duotherm A/C unit. The owners manual says that when the thermostat calls for A/C, there is a built in 2 minute delay before the compressor kicks in. Trouble is, during the delay it often gets uncomfortably warm in the trailer. Is this delay in the thermostat or in the A/C unit? Is there a way to bypass the delay? Will a house type thermostat work in an RV? Thanks for the help!!