Installation manual

12
IX. TROUBLE SHOOTING CHART
Blower runs
but there is
no heat
Check Building
Breaker
Select Heat on S/W
switch or adjust temp
on OSAOR
Reset
Check Wiring
Adjust
or Replace
Is S/W switch or
Outside Air
Override closed?
Is there Power to
switch?
Is 5 Amp
Breaker Tripped?
Is there power at
terminal #1?
Is Air Flow
Switch Closed?
Refer to Fireye
Guide
Replace
Is there a short or open
circuit in Modulating
Valve? Should be
45-55 ohms
Does transformer
have 24V
output?
Burner lights but
heater stays in
Low Fire
With wires3&4removed from the
Maxitrol Amplifier, is there 9.5K - 11K
ohms between the wires?
Replace
Temperature
Selector
Replace
Modulating Valve
Is there voltage
on Terminal #5
on Flame Safety
Control
Replace
FSC
Replace
Amplifier
Replace
Discharge Air
Sensor
Yes
No
No
No
No
Yes
Yes
No
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
With wires1&2removed from the
Maxitrol Amplifier, is there 9.5K - 11K
ohms between the wires?
Remove Terminal #4 from the
Maxitrol Amplifier. Does the heater
go into High Fire?
Yes