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S Y M P TO M S
FAN WON'T STA R T
FAN OPERATES, GAS
PILOT WILL NOT IGNITE,
GREEN "TURN RESET"
DOES NOT LIGHT
FAN OPERATES, GAS
PILOT WILL NOT IGNITE,
GREEN "TURN RESET"
LIGHTS CONTINUOUSLY
WHENEVER FAN RUNS
FAN OPERATES, GAS
PILOT WILL NOT IGNITE,
GREEN "LOCKOUT"
LIGHTS CONTINUOUSLY
WHENEVER FAN RUNS
TROUBLESHOOTING
C A U S E
1 )
Selector in "OFF" position
2 )
Check 3-phase line leads for power across all 3 phases
(If one line is dead, check fuses or breaker in main
disconnect)
3 )
Check fuse on control circuit transformer
4 )
Try "SUM" setting. If fan runs, but won't run on "WIN",
check 1THS outdoor thermostat (if used) for open R-B
contact; check limit switch on door for open-conta c t .
5 )
Check overload relay on fan sta r t e r. I f t r i p p e d , r e s e t . I f
relay continues to trip, check motor full load amps versus
M sta r t e r' s overload relay's setting (adjustment dial on the
f r o n t o f s tarter). See manufacturer' s instruction sheet.
1 )
Selector in "SUM" position. Turn to "WIN"
2 )
Check wire 6 to ground 115 V (defective selector switch or
wiring to same)
3 )
Check wire 7 to ground (bad 13-14 conta c t i n s ta r t e r
4 )
9 to ground (bad R-W contact lo-gas switch)
5 )
10 to ground (bad R-B contact in hi-gas switch)
6 )
11 to ground (bad 4-5 conta c t i n c o n t r o l r e l a y )
7 )
12 to ground (bad C-NO contact in airflow switch; pressure
setting too high, turn adjustment screw CCW until switch
t r i ps; clogged tubing in airstream)
8 )
13 to ground (reset Thermodisc, inside "handy-box")
9 )
Check toggle switch in mounting base of Fireye (must be
l e ft in "ON" position)
1 )
Defective time delay TDR. (Pull from socket, turn RESET,
and try again)
2 )
(IRI type only) - One or both gas pressure switched tripped.
Press reset lever. If low-pressure can't be reset, check for
cause of inadequate pressure. Check supply pressure ahead o f
regulator, if pressure exceeds rating of regulator,it may pass no gas or
f a i l t o r e g u l a t e .
1 )
Press reset button on Fireye
2 )
If Fireye won't reset, check for presence of continuous gas
p i l o t f l a m e
CAUTION - I n t h i s c a s e t u r n o ff manual cock in pilot
l i n e before s t o p p i n g f a n . Then investigate cause of
pilot valve 1V sticking open
3 )
If Fireye can be reset, but on next try-for-ignition, "TURN RESET"
l i g h ts, refer to next sections. If "LOCKOUT" lights r e f e r t o l a s t
symptom.
5
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