Honeywell thermostat model # T8611G problem

What's the problem? Need more info please.

:)

The air handler comes on and runs continually. I can turn it of by selecting off and it stays off for a while. If there is a call for heat the fan will continue to run instead of turning off after the normal 2 minute cool-down period. When I select 'off' I hear a click of a switch or relay. What would hold this switch in the operate mode?

Honeywell model T8611G turns the air handeler on and it stays on until I manually switch the thermostat to off. When I switch to either heat or auto the air handeler will come on even if there is no call for heat. I understand the fan will operate for about 2 or 3 minutes in a cool down mode after a call for heat is satisfied but this one stays on until I manually switch to off. When I operate the switch to off I hear a make or break contact inside. If I manually switch back to heat or auto the fan does not come back on immediately but when it does, it stays on.

Honeywell model T8611G turns the air handeler on and it stays on until I manually switch the thermostat to off. When I switch to either heat or auto the air handeler will come on even if there is no call for heat. I understand the fan will operate for about 2 or 3 minutes in a cool down mode after a call for heat is satisfied but this one stays on until I manually switch to off. When I operate the switch to off I hear a make or break contact inside. If I manually switch back to heat or auto the fan does not come back on immediately but when it does, it stays on.

Try unhooking the g wire from the thermostat and let me know if that takes care of the issue. If it does, then you need a new stat. If it doesn't, unhook the g wire in the air handler. Let me know what you find.