Carrier 58MSA User Manual

Also see for 58MSA Series: Service and maintenance instructions Instruction manual Installation, start-up, and operating instructions Installation, start-up, and operating instructions Installation, start-up, and operating instructions

Contents

Carrier 58MSA User Manual Manual pdf 10 page image

10• Inspect electrical wiring, connections, and components forloose connections.• Perform an operational checkout to determine whether yourfurnace is working properly and if it requires adjustments.• Inspect all condensate drain tubes and condensate trap assem-bly for leaks. The condensate removal system should be cleanedannually by a qualified service agency. Refer to the Service andMaintenance Instructions for further information.• Examine the physical support of the furnace. Support shouldbe sound with no cracks, sagging, gaps, etc. around the base.• Check furnace for any obvious signs of deterioration.BEFORE YOU REQUEST A SERVICE CALLIf your furnace is not operating or not performing properly,you may save the expense of a service call by checking a fewthings yourself before calling for service.NOTE: Record the LED status code BEFORE removing theblower access door or turning off 115-v power to the furnace.Removing the blower access door or turning off the 115-v pow-er will end the LED status code display and erase the code fromthe control’s memory.FOR INSUFFICIENT AIRFLOW:• Check for dirty air filter(s).• Check for blocked return-air or supply-air grilles throughoutyour 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 steponly if furnace fails to start.• Check thermostat for proper temperature. Is thermostat setabove 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 withchecklist.• Is control switch on gas valve in ON position? (Follow start-up procedures if you must reset switch to ON position.)• Check manual reset flame rollout switch located on the burnerbox. (See Fig. 2.) if furnace has experienced high temperatureconditions, this switch will shut off the furnace. Reset it bypushing the button on the switch. If it trips again, shut down thefurnace and call for service. See “Shutting Down Your Furnace”section in this manual.• Check for obstructions around the vent termination.If the furnace still fails to operate, call your service representa-tive.For your convenience, record the furnace product and serialnumbers on page 2. Should you ever require service, you willhave ready access to the information needed by your servicerepresentative.This furnace has a light-emitting-diode (LED) status code dis-play to aid the installer, service technician, or homeowner whileinstalling or servicing the unit. The LED code can be seen byremoving the main furnace door and viewing the LED throughthe view port in the blower access panel.

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