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Troubleshooting Guide (cont'd)
Check #5 to ground for 110/120 __
volts.
Yes
1
[Chock 9 orl 0,120volts.]
No Yes
Check venting manual reset switch.
I Replace thermostat.
continued from facing page
1
No -fCheck#8togroundfor110/120volts.]-.,_--No -j Is indicator light on? [
I
Yes
I Replace indicator light.
Secure air pressure line.
Replace air pressure switch. _- No "-t
I
Yes
Is ¼" air pressure line secured to air
pressure switch with opposite end I
secured to pressure tap on blower
housing? See 6 and 7.
I
Yes
Is there venting restriction or low
voltage (110V rain. req.)
I
Yes
l Remove restriction or correct
voltage.
_,,_- No "t ls main burner on?
Yes
ALL SYSTEMS OPERATIONAL
35