Atlas Triton T-80, Operating Manual

Page: 35 / 48

F 33
Code Description
Recommended Troubleshooting of Lockout
Codes
Note
105 Flame detected out of sequence 1. Check that ame is not present in the combustion chamber.
Correct any errors.
2. Make sure that the ame detector is wired to the correct
terminal.
3. Make sure the F & G wires are protected from stray noise
pickup.
4. Reset and sequence the module, if code reappears, replace
the ame detector.
5. Reset and sequence the module, if code reappears, replace
the module.
H or L
106 Flame lost in MFEP 1. Check pilot valve (Main Valve for DSI) wiring and operation -
correct any errors.
2. Check the fuel supply.
3. Check fuel pressure and repeat turndown tests.
4. Check ignition transformer electrode, ame detector, ame
detector siting or ame rod position.
5. If steps 1 through 4 are correct and the fault persists, replace
the module.
L
107 Flame lost early in run L
108 Flame lost in run L
109 Ignition failed
L
110 Ignition failure occurred Hold time of recycle and hold option. Will not be a lockout fault.
Hold Only. Internal hardware test. Not a lockout. H
111 Flame current lower than WEAK threshold H
112 Pilot test ame timeout L
113 Flame circuit timeout L
114
-121
RESERVED
L
Rate Proving Faults
122 Lightoff rate proving failed 1. Check wiring and correct any potential wiring errors.
2. Check VFDs ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
L
123 Purge rate proving failed
L
124 High re switch OFF 1. Check wiring and correct any potential wiring errors.
2. Check High Fire Switch to assure proper function (not
welded or jumpered).
3. Manually drive the motor to the High Fire position and adjust
the HF switch while in this position and verify voltage through
the switch to the HFS input with a voltmeter.
4. If steps 1-3 are correct and the fault persists, replace the
module.
H
125 High re switch stuck ON
H
126 Low re switch OFF 1. Check wiring and correct any potential wiring errors.
2. Check Low Fire Switch to assure proper function (not welded
or jumpered).
3. Manually drive the motor to the High Fire position and adjust
the LF switch while in this position and verify voltage through
the switch to the LFS input with a voltmeter.
4. If steps 1-3 are correct and the fault persists, replace the
module.
H
127 Low re switch stuck ON
H or L
128 Fan speed failed during prepurge 1. Check wiring and correct any potential wiring errors.
2. Check VFDs ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
H or L
129 Fan speed failed during preignition H or L
130 Fan speed failed during ignition H or L
131 Fan movement detected during standby H
132 Fan speed failed during run H
133
-135
RESERVED
Start Check Faults
136 Interrupted Air ow Switch failed to close 1. Check wiring and correct any possible wiring errors.
2. Check Interrupted Air ow switch(es) to assure proper func-
tion.
3. Verify voltage through the air ow switch to the IAS input with
a voltmeter.
4. If steps 1-3 are correct and the fault persists, replace the
module.
H