PEERLESS PureFire PF-200 Installation, Operation & Maintenance Manual page 63

Table 10.2 (cont'd): Control Board Locking Error Codes (manual reset):
"A"
Error Display
CODE
INTERNAL ERROR GAS
A04
VALVE RELAY
INTERNAL ERROR
A05
SAFETY RELAY
INTERNAL SOFTWARE
A09
ERR RAM ERROR
COMMUNICATION ERROR
A10
E2PROM ERROR
SOFTWARE OUT OF
A12 DATE E2PROM OUT OF
DATE
A13 INTERNAL ERROR
A14 INTERNAL ERROR
A15 INTERNAL ERROR
A16 INTERNAL ERROR
A18 INTERNAL ERROR
FALSE FLAME DETECTED
A19
AFTER SHUTDOWN
FALSE FLAME DETECTED
A20
BEFORE IGNITION
A23 FLOW_SW_NOT_OPEN
A24 FLOW_SW_NOT_CLOSED
A32 FAN NOT RUNNING
A33 FAN SPEED ERROR
RETURN HIGHER THAN
A50
SUPPLY
** If persistent locking errors, A04 through A18, occur, systematically disconnect all wires that were not supplied by the factory with the exception
of the power supply (CH T'stat, DHW T'stat, LWCO and Pumps). If the error code goes away, determine if there may be feedback from one of
the circuits. If the Error occurs with all of these disconnected, there is likely a problem with the control board.
Internal
Error Description
No.
Gas Valve Relay
5
Problems.
6
Safety Relay Problems.
9
Internal Software Error.
No Communication with
12
E2prom.
Contents of e2prom is
10
not up-to-date.
13
Internal Software Error
14
Internal Software Error
16 Internal Software Error
22
Internal Software Error
19
Internal Software Error
Flame signal detected 10
20
sec. after closing the gas
valve.
Flame signal detected
21
before gas valve
opened.
CH flow switch not
25
working.
CH flow switch not
26
working.
23 Internal Software Error.
Fan speed detected is
more than 300 rpm dif-
8 ferent from targeted
value for more than 60
seconds.
Boiler return water tem-
perature higher than
11
supply for more than 5
ignition attempts.
Corrective Action
See Note**
See Note**
See Note**
See Note**
See Note**
See Note**
See Note**
See Note**
See Note**
See Note**
1. Check flame sensor to be sure there is no short to ground.
2. Check igniter to be sure there is not short to ground.
3. This could also indicate that the gas valve doesn't close completely.
4. Check flame sensor to be sure there is no short to ground. Check
igniter to be sure there is not short to ground.
1. Check for electrical continuity between wires
connected to terminals 9 & 10 from field supplied flow switch.
2. If there is continuity when the circulator is off, there is a system
piping or circulator control problem.
1. Check for electrical continuity between wires connected to
terminals 9 & 10 from the field supplied flow switch.
2. If there is no continuity, check to be sure the circulator is working.
3. If the circulator is working correctly, check the flow switch.
1. Does the fan run at full speed after resetting the control?
• Check connections in the 4-wire connection to the blower.
• If the connections are correct, there may be a problem with the
harness or the main control board.
2. Does the fan run normally after resetting the control?
• Under System Test in the Installer Menu on the display, choose
"Low Power". If the boiler locks out when targeting low power,
check the voltage to the fan.
• If the voltage is within specification, replace the blower.
3. Does the fan not run after pressing reset?
• Check for signs of moisture around the fan motor. Check for
evidence of recirculating flue gas (corrosion inside the cabinet).
• DO NOT replace the blower without determining the cause of
the failure. Otherwise, the failure may reoccur.
1. Check system piping. Assure that the water is entering the return
connection and exiting the supply connection.
2. Compare the supply thermistor reading to the
temperature gauge, if they don't agree, replace the supply
thermistor.
TROUBLESHOOTING
61