33
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
MAINTEN
ANCE
Gas Fired Boiler
32
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
MAINTEN
ANCE
Gas Fired Boiler
N
ote
:
When an Internal Error occurs, as identified above, the failure is internal to the
ENVI®
boiler control and
replacement of the
ENVI®
control is required. A qualified service technician must replace the control.
Code
eNVI® Display
lockout
Description
A00
NED
Unassigned
No Error Description, Call For Service
A01
IGNITION FAILURE
Ignition Failure
During an attempt to light, no flame was detected
A02
FLAME FAILURE
Flame Failure
During run, the flame was lost
A03
HIGH LIMIT
High Limit
The temperature in the boiler exceeded the setting on
the High Limit Control
A05
INT ERR GAS VLV RLY
Internal Error Gas Valve Relay
Call for service.
A06
INT ERR SAFETY RLY
Internal Error Safety Relay
Call for service.
A07
LOW FLOW / ILK
Low Water Flow or Open Interlock
Circuit
Water Flow is Inadequate or Interlock Jumper/Circuit
is Open.
A09
INTERAL ERROR
9 or 27 or 28 or 30
Internal Error
9 or 27 or 28 or 29 or 30
Call for service.
A10
INT ERR E2PROM ERR
Internal Error E2PROM Err
Call for service.
A12
INT ERR E2PROM SIG
Internal Error E2PROM Sig
Call for service.
A13
INTERAL ERROR 13
Internal Error 13
Call for service.
A14
INTERAL ERROR 14
Internal Error 14
Call for service.
A15
INTERAL ERROR 16
Internal Error 16
Call for service.
A16
INTERAL ERROR 22
Internal Error 22
Call for service.
A18
INTERAL ERROR 19
Internal Error 19
Call for service.
A19
LATE FLAME
Late Flame
Flame still present after boiler gas valve closed during
post purge
A20
EARLY FLAME
Early Flame
Flame detected before boiler gas valve opened during
pre purge
A30
HIGH GAS PRESSURE
High Gas Pressure Error
The gas pressure is too high and has tripped the
HGPS
A31
LOW GAS PRESSURE
Low Gas Pressure Error
The gas pressure is too low and has tripped the LGPS
A32
INTERAL ERROR 23
Internal Error 23
Call for service.
A33
FAN WRONG SPEED
Wrong Fan Speed Error
Fan deviation more than 300 rpm for > 1 sec (ignored
when fan > 4200 rpm)
A34
AIR SWITCH NOT OPEN
Air Switch Not Open
Air switch does not open when fan is off
A35
AIR SWITCH NOT CLOSE
Air Switch Not Closed
Air switch does not close when fan is running
A37
UV SENSOR DEFECT
UV Sensor Defective
Self Check function of UV detector has indicated a
failure
A38
MAX DT EXCEEDED
Max Delta Temp Exceeded
Maximum temperature differential across the boiler has
been exceeded
A39
RAPID RISE INLET TMP
Rapid Rise Inlet Error
Inlet temperature is rising too rapidly
A40
RAPID RISE OUT TEMP
Rapid Rise Outlet Error
Outlet temperature is rising too rapidly
A41
RAPID RISE HX TEMP
Rapid Rise HX Temp
Temperature across heat exchanger is rising faster
than allowed
A43
LOW WATER LEVEL
Low Water Cutoff
Water is too low for boiler to operate
A45
INTERNAL ERROR 31
Internal Error 31
Call for service.
Code eNVI® Display
lockout
Description
E01
OUT TEMP SENS OPEN
Outlet Temperature Sensor Open Boiler outlet water temperature sensor open circuit
E02
IN TEMP SENS OPEN
Inlet Temperature Sensor Open Boiler inlet water sensor temperature open circuit
E03
FLUE TMP SENS OPEN
Flue Temperature Sensor Open Boiler flue gas temperature sensor open circuit
E04
DHW TEMP SENS OPEN DHW Temperature Sensor Open Domestic Hot Water temperature sensor open circuit
E05
HX TEMP SENS OPEN
Heat Exchanger Temperature
Sensor Open
Heat Exchange temperature sensor open circuit
E11
OUT TEMP SENS SHORT Outlet Temperature Sensor Short Boiler outlet water temperature sensor short circuit
E12
IN TEMP SENS SHORT
Inlet Temperature Sensor Short Boiler inlet water temperature sensor short circuit
E13
FLUE TMP SENS SHORT Flue Temperature Sensor Short Boiler flue gas temperature sensor short circuit
E14
DHW TEMP SENS SHORT DHW Temperature Sensor Short Domestic Hot Water temperature sensor short circuit
E15
HX TEMP SENS SHORT
Heat Exchanger Temperature
Sensor Short
Heat Exchange temperature sensor short circuit
E16
HEADER SENS SHORT
Header Temperature Sensor is
defective
Header temperature sensor on IF board has a short circuit or an
open circuit
E18
LINE NEUTRAL REV
Electrical Error
Hot and Neutral are reversed
E20
FALSE FLAME
False Flame
Flame detected when no flame should be present
E21
LOW FLOW / ILK
Low Water Flow or Open
Interlock Circuit
E21 converts to A07 after 5 minutes
E22
NO GROUND 60 HZ ERR No Ground error
No ground connected or voltage on ground
E23
LINE FREQUENCY ERR
Line Frequency Error
Line frequency deviates from 60Hz by more than 2%
E24
FAULTY GROUND
Faulty Ground
Ground/Earth connection is not functioning correctly
E30
HIGH FLUE TEMP
Flue Gas Temperature Too High Temperature of the flue gas is greater than se differential
E32
HIGH INLET TEMP
Inlet Temp Too High
Inlet water is greater than 194°F
E34
BLOCKED FLUE
Blocked Flue
Hi exhaust back pressure switch is tripped due to excess pressure
in the flue/stack or excessive negative cabinet pressure
E41
REVERSE FLOW IN OUT Reversed Water Flow
The water flow through the boiler is reversed (Inlet water is hotter
than outlet water)
E42
INTERAL ERROR 48
Internal Error 48
Call for service.
E46
INTERAL ERROR 35
Internal Error 35
Call for service.
E47
INTERAL ERROR 36
Internal Error 36
Call for service.
E48
INTERAL ERROR 37
Internal Error 37
Call for service.
E49
RAPID RISE HX ERROR
Rapid Rise Heat Exchanger
Temperature
Temperature across heat exchanger is rising faster than allowed
E50
RAPID RISE ERROR
Rapid Rise Outlet Temp
Temperature of the Outlet water is rising faster than allowed
E51
INTERNAL ERROR 67
Internal Error 67
Call for Service
E52
WRONG BOILER TYPE
Wrong Boiler Type
Control and Boiler do not match (control is programmed for
another type of Harsco boiler)
E 54
IF COMM FAILURE
Interface Board Failure
No communication with Interface Board
5.7 M
anual
r
eseT
e
rror
C
odes
5.8 a
uTo
-r
eseT
e
rror
C
odes