Ace Heating Solutions Atlas A050 Operating And Maintenance Manual page 105

152 Combustion pressure ON
153 Combustion Pressure Off
154 Purge Fan switch On
155 Purge fan switch OFF
156 Combustion pressure and Flame ON
157 Combustion pressure and Flame OFF
158 Main valve ON
159 Main valve OFF
160 Ignition ON
161 Ignition OFF
162 Pilot valve ON
163 Pilot valve OFF
164 Block intake ON
165 Block intake OFF
172 Main relay feedback Incorrect
173 Pilot relay feedback incorrect
174 Safety relay feedback incorrect
175 Safety relay open
176 Main relay ON at safe start check
177 Pilot relay ON at safe start check
178 Safety relay ON at safe start check
184 Invalid BLOWER/ HSI output setting
185 Invalid Delta T limit enable setting
186 Invalid Delta T limit response setting
187 Invalid DHW high limit enable setting
188 Invalid DHW high limit response
Setting
189 Invalid Flame sensor type setting
190 Invalid interrupted air switch enable Setting
191 Invalid interrupted air switch start check enable
setting
192 Invalid igniter on during setting
193 Invalid ignite failure delay setting
194 Invalid ignite failure response setting
195 Invalid ignite failure retries setting
196 Invalid ignition source setting
197 Invalid interlock open response setting
198 Invalid interlock start check setting
199 Invalid LCI enable setting
200 Invalid light off rate setting
201 Invalid light off rate proving setting
202 Invalid Main Flame Establishing Period time
setting
203 Invalid MFEP flame failure response setting
204 Invalid NTC sensor type setting
205 Invalid Outlet high limit response setting
206 Invalid Pilot Flame Establishing Period setting
207 Invalid PII enable setting
208 Invalid pilot test hold setting
2. If fault repeats, consult factory
1. Check wiring and correct any errors.
2. Inspect the Combustion Pressure Switch to make sure it is
working correctly.
3. Reset and sequence the relay module.
4. During STANDBY and PREPURGE, measure the voltage
between J6 terminal 5 and L2 (N). Supply voltage should be
present. If not, the lockout switch is defective and needs
replacing.
5. If the fault persists, replace the relay module.
1. Purge fan switch is on when it should be off.
2. 3. Inspect the Purge Fan switch J6 terminal 3 and its
connections. Make sure the switch is working correctly and is
not jumpered or welded.
4. Reset and sequence the relay module.
5. If the fault persists, consult factory.
1. Check that flame is not present in the combustion
chamber. Correct any errors.
2. Make sure that the flame detector is wired to the correct
terminal.
3. Make sure the G wires are protected from stray noise
pickup.
4. Reset and sequence the module, if code reappears,
replace the flame detector.
5. Reset and sequence the module, if code reappears,
consult factory.
1. Check Main Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, consult
factory.
1. Check Ignition terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, consult
factory.
1. Check Pilot Valve terminal wiring and correct any errors.
2. Reset and sequence the module. If fault persist, consult
factory.
Internal Fault
1. Reset Module.
2. If fault repeats, consult factory
Internal Fault.
1. Reset Module.
2. If fault repeats, consult factory.
1. Return to Configuration mode and recheck selected
parameters, re-verify and reset module.
2. If fault repeats, verify electrical grounding.
3. If fault repeats, consult factory.
105
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
Rev 2.1