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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I just installed a Honeywell RTH2410 thermostat and my system runs 2 or 3 minute

Customer Question

I just installed a Honeywell RTH2410 thermostat and my system runs for about 2 or 3 minutes and then trips the breaker. This happens for both cooling and heating. It is a gas furnace. Thanks for your help
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.
what color wires are on what terminals?
and was everything ok before new thermostat?
Customer: replied 2 years ago.
The wires were matched to the same terminals as on the original thermostat. Red green white and yellow. Yes they were ok before new.
Expert:  BillyHvac replied 2 years ago.
the power for the thermostat is only 24volts.
the power for furnace is 120v
the power for ac is 240 v
and they are not tied together to same circuit....the 24v thermostat cannot trip a 120v or 240 breaker.
is this a one piece unit? or a blower inside and ac unit outside?