Bryant 340MAV manual If Furnace Fails to Operate

Ensure they are open and unobstructed.

If problem still exists, call your dealer for service.

IF FURNACE FAILS TO OPERATE:

Follow this checklist step by step, advancing to the next step only if fur- nace fails to start.

•Check thermostat for proper tem- perature. Is thermostat set above room temperature?

•Is thermostat set to HEAT?

•Check fuses and circuit breakers. Is electrical supply on?

•Is manual shutoff valve in gas supply pipe in open position? (Follow start-up procedures if you open gas valve.)

NOTE: Turn off electrical supply before continuing with checklist.

•Is control switch on gas valve in ON position? (Follow start-up procedures if you must reset switch to ON posi- tion.)

•Check manual reset flame rollout switch located on the burner box in combustion area. (See Fig. 3 or 4.) If furnace has experienced high tempera- ture conditions, this switch will shut off the furnace. Reset it by pushing the button on the switch. If it trips again, shut down the furnace and call for ser- vice. See “Shutting Down Your Fur- nace” section in this manual.

•Check for obstructions around the

vent termination outside the structure.

If your furnace still fails to operate, call your service representative.

For your convenience, record the fur- nace product and serial numbers on back page. Should you ever require ser- vice, you will have ready access to the information needed by your service representative.

This furnace has a light emitting diode (LED) status code display to aid the installer, service technician, or home- owner while installing or servicing the unit. The LED code can be seen by removing the access door and viewing LED through the view port in the blower access panel.