PEERLESS PureFire PF-50 Installation, Operation & Maintenance Manual page 61

Table 10.1: Control Board Blocking Error Codes (automatic reset):
"E"
Error Display
CODE
SUPPLY SENSOR
E01
NOT CONNECTED
RETURN SENSOR
E02
NOT CONNECTED
DHW SENSOR
E04
NOT CONNECTED
E05 STACK SENSOR OPEN
E11 SUPPLY SENSOR SHORT
E12 RETURN SENSOR SHORT
E13 STACK SENSOR SHORT
E14 DHW SENSOR SHORT
COMMUNICATION ERROR
E19
E2PROM ERROR
E20 FALSE FLAME DETECTED
E21 HOT/NEUTRAL REVERSED
E22 POOR GROUND
E23 NET FREQUENCY ERROR
E24 POOR GROUND
E25 BLOCKED VENT
BLOCKED CONDENSATE
E26
DRAIN
E30 HIGH STACK TEMPERATURE
E31 LOW WATER
E32 HIGH RETURN TEMP
E42 INTERNAL HDWRE ERROR
E45 INTERNAL HDWRE ERROR
E46 INTERNAL HDWRE ERROR
E47 INTERNAL HDWRE ERROR
E48 INTERNAL HDWRE ERROR
RESET BUTTON ERROR
E51
PLEASE WAIT.
* If persistent blocking errors, E42 through E48, 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.
51 Supply sensor not connected.
52 Return sensor not connected.
55 DHW sensor not connected.
57 Flue gas sensor open.
59 Supply sensor shorted.
60 Return sensor shorted.
65 Flue gas sensor shorted.
63 DHW sensor shorted.
Problems reading from or writing
0
to e2prom.
35 False Flame detected.
Phase and neutral of mains
44
supply are reversed.
No earth connected or internal
43
hardware error.
Mains frequency differs more
45
than 2% from 60Hz.
46 Earth connection is not ok.
38 Blocked Vent Switch is Open
41 Condensate drain blocked.
Flue gas sensor above max flue
39
setpoint + diff.
36 Water level is too low.
Return temperature is above
40
194°F (90°C).
47 Internal hardware error.
31 Internal hardware error.
32 Internal hardware error.
33 Internal hardware error.
34 Internal hardware error.
Reset button pressed more than
66
7 times within one minute.
TROUBLESHOOTING
Corrective Action
Check harness and sensor.
Check harness and sensor.
If DHW Mode is not intended to be set to Mode 1,
DHW Store with Sensor, then change it to the
appropriate Mode.
Check harness and sensor.
Check vent temperature, harness, sensor.
Check harness and sensor.
Check harness and sensor.
Check harness and sensor.
Check harness and sensor.
Contact PB Heat Representative.
Verify no flame in observation port. Check Sensor.
Verify polarity of incoming wiring. Check boiler
ground and harness.
Check boiler ground and harness.
Contact electrical provider and/or an electrician.
Check boiler ground and harness.
This error applies to PF-210 and PF-399 models.
Check for blocked vent pipe or blocked heat
exchanger. Check switch and tubing to switch.
Check condensate tanks, hoses, condensate switch,
and harness.
If flue pipe is hot, check flue temperature and
compare to values shown Table 8.5. Check for
proper gas input and combustion readings, check
for dirty heat exchanger.
If flue pipe is not hot, check flue sensor and
harness.
Check boiler water level, low water cut-off, harness.
If a LWCO is not used, a jumper should be placed
between terminals #9 and #10, LWCO Contact.
Check for reversed supply and return piping or
pump installed backwards.
See Note*
See Note*
See Note*
See Note*
See Note*
Wait five minutes. If error does not clear, replace
control.
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