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Date: 8-4-2010
Revision: 0
Form: 2396
46
Code Description Recommended Troubleshooting of Lockout Codes Code
165 Block intake OFF 1. Check wiring and correct any errors.
2. Inspect the Block Intake Switch to make sure it is working
correctly.
3. Reset and sequence the module.
4. During Standby and Purge, measure the voltage across the
switch. Supply voltage should be present. If not, the Block Intake
Switch is defective and needs replacing.
5. If the fault persists, replace the relay module.
L
166-
171
RESERVED
172 Main relay
feedback incorrect
L
173 Pilot relay feedback
incorrect
L
174 Safety relay
feedback incorrect
L
175 Safety relay open L
176 Main relay ON at
safe start check
L
177 Pilot relay ON at
safe start check
L
178 Safety relay ON at
safe start check
Internal Fault.
1. Reset Module.
2. If fault repeats, replace module.
L
179-
183
RESERVED
184 Invalid BLOWER /
HSI output setting
L
185 Invalid Delta T limit
enable setting
L
186 Invalid Delta T limit
response setting
L
187 Invalid DHW high
limit enable setting
L
188 Invalid DHW high
limit response
setting
L
189 Invalid Flame
sensor type setting
L
190 Invalid interrupted
air switch enable
setting
L
191 Invalid interrupted
air switch start
check enable
setting
L
192 Invalid igniter on
during setting
L
193 Invalid ignite failure
delay setting
L
194 Invalid ignite failure
response setting
L
195 Invalid ignite failure
retries setting
1. Return to Configuration mode and recheck selected
parameters, reverify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, replace module.
L