Filtering Out Trouble - Payne PG9MAA User's Information Manual

maintenance functions such as cleaning and replacing air filters.
All other operations must be performed by trained and qualified service agency personnel. Observe safety precautions in this manual,
on tags, and on labels attached to the furnace, and other safety precautions that may apply.
With proper maintenance and care, your furnace will operate economically and dependably. Instructions for basic maintenance are
found on this and the following pages. However, before beginning maintenance, follow these safety precautions:
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WARNING: Turn off electrical power supply to your furnace before removing the main furnace door to service
or perform maintenance. Failure to follow this warning could result in personal injury/death or property damage.
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CAUTION: Although special care has been taken to minimize sharp edges, be extremely careful when han-
dling parts or reaching into the furnace. Failure to follow this caution would result in minor personal injury.

FILTERING OUT TROUBLE

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CAUTION: Never operate your furnace without a filter in place. Doing so may damage the furnace blower
motor. An accumulation of dust and lint on internal parts of your furnace can cause a loss of efficiency and
would cause minor property or product damage.
A dirty air filter will cause a loss of airflow in your duct system. When excessive loss of airflow occurs, the furnace may cycle on its
safety controls. If this condition is left unattended, the furnace will eventually lock out. It is recommended that the furnace filter be
checked every 3 or 4 weeks and cleaned if necessary.
If installed with factory-specified disposable media filter, check or replace filter before each heating and cooling season. Replace
disposable media filter at least once a year.
The air filter is normally located in the blower compartment. (See Fig. 1.) If the air filter has been installed in another location, contact
your dealer for instructions. To inspect, clean, and/or replace the air filter(s), follow these steps:
1. Turn off electrical supply to the furnace. (See Fig. 20.)
2. Remove main furnace door. (See Fig. 21.)
3. Remove blower access panel. (See Fig. 22.)
NOTE: It will be necessary to remove 2 screws.
4. Remove air filter from furnace.
• AIR FILTER(S) LOCATED IN END OF FURNACE:
a. Slide air filter retainer sideways until it is free of latch. (See Fig. 23.)
b. Slide air filter out of furnace. (See Fig. 24.)
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