Carrier 58MVC owner manual Before YOU Request a Service Call, If Furnace Fails to Operate

Page 13

BEFORE YOU REQUEST A

SERVICE CALL

If your furnace is not operating or not performing properly, you may save the expense of a service call by checking a few things yourself befnre calling for service.

For Insufficient Airflow:

Check fnr dirty air filter(s).

Check for blocked return-air or supply-air grilles

throughout your home. 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 furnace fails to start.

Check thermostat for proper temperature. Is thermostat set above room temperature'?

Is thermostat set on 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

startup procedures if you must reset switch to ON position.)

Check manual reset flanm rollout switch located on the

burner box. If furnace has experienced high

temperature 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

service. See "Shutting Down Your Furnace" section in this manual.

Check for obstructions around the vent termination outside the structure.

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

For your convenience, record the furnace product and serial numbers on back page. Should you ever require service, 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 homeowner while installing or servicing the unit. The LED code can be seen

by removing the main furnace door and viewing the LED

through the view port in the blower access panel. (See Fig. 2.)

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Contents This Manual Must be Left with the Equipment User Rn to the ExpertgFire or Explosion Hazard Carbon Monoxide Poisoning HazardWelcome to a NEW Generation of Comfort ContentsFurnace Components Fire and Unit Operation Hazard VentingStarting and Shutting Down Your Furnace Before Starting Your FurnaceSteps For Starting Your Furnace Fire and Explosion HazardOpen Valve Shutting Down Your Furnace Performing Routine MaintenanceUnit and Property Damage Unit Performance Hazard Filtering Out TroubleLocated IJ L Door Filter Furnace AIR Filter Personal Injury HazardHeading South for WINTER? Dont Forget Your Furnace Combustion Area and Vent SystemIf your furnace makes an especially loud noise when Remove upper inducer housing drain connection cap. See Fig CHECK-UP ChecklistUnit and Property Damage Hazard If Furnace Fails to Operate Before YOU Request a Service CallTurn to the Expertg
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