Pg9Maa Diagnostic Chart - Payne PG9MAA User's Information Manual

• 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 or knob on gas valve in ON position? (Follow start-up procedures if you must reset switch or knob to ON.)
• Check manual reset flame rollout switch located on the burner box. (See Fig. 1.) 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.
If your furnace still fails to operate, call your service representative.
For your convenience, record the furnace product and serial numbers on page 2. Should you ever require service, you will have ready
access to the information needed by your service representative.
This furnace has an LED operation and 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 LED through the view port in the
blower access panel.
NOTE: Removing the blower access panel or turning off the 115-v electrical power supply will terminate LED diagnostic code
display.
To decipher the meaning of the LED code, and suggested action, the following cross-reference can be used.
FAULT
CODE FAULT CODE DESCRIPTION
13 or 33 Limit Switch Lockout
Ignition Lockout or
14 or 34
Ignition Proving Fault
24 Furnace Violet-colored 3 amp Fuse Open
31 Pressure Switch Not Closed
12, 21, 22,
Any Other Fault Code
or 23
No Fault
Furnace Fails to Operate and No
Code
Fault is Signaled
Signaled
NOTES:
1. Light on continuously means control has power and is working properly.
2. The fault code is a 2 digit number. The first digit is determined by the number of short flashes of the light and the second digit is determined by
number of long flashes of the light.
© 1999 Payne Heating & Cooling, P.O. Box 70, Indianapolis, IN 46206
MODEL PG9MAA DIAGNOSTIC CHART
(See Fig. 1.)
CHECKLIST
Check for dirty air filter.
Check for blocked return-air or supply-air grilles.
Check to be sure manual shutoff valve in gas supply pipe is in the open position. (Follow start-up
procedure if you open gas line.)
NOTE: Turn off the electrical supply and remove access doors before continuing with this checklist.
Check to be sure control switch or knob on gas valve inside of furnace is in ON position. (Follow
start-up procedures if you must reset switch or knob to ON.)
Check for blown fuse and possible short in 24-v wiring.
Check to make sure that all PVC pipes leading into the combustion-air intake and vent/exhaust are
free from any cracks and sags.
Check the combustion-air intake adjacent to the furnace or on the outside of your home for block-
age.
Check vent/exhaust pipe on the outside of your home for blockage.
Call dealer for service.
Check thermostat for proper temperature setting.
Check for blown house fuses and circuit breakers.
Check to be sure blower access panel is properly in place.
12
Printed in U.S.A.
Cancels: OG-PG9M-02 OG-PG9M-03
Catalog No. 53PG-9M9 6-99