Form 43343530
Aug 2012
-51-
IGNITION MODULE DIAGNOSTICS
IGNITION MODULE DIAGNOSTICS
IGNITION MODULE DIAGNOSTICS
IGNITION MODULE DIAGNOSTICS
Flame Fault
Flame Fault
Flame Fault
Flame Fault
If at any time the main valve fails to close completely and maintains a flame, the full time flame sense circuit
will detect it and energize the combustion blower. Should the main valve later close completely removing the
flame signal, the combustion blower will power off following the post purge period.
Fault Conditions
Fault Conditions
Fault Conditions
Fault Conditions
MULTIPURPOSE METER
USE
MICROAMP
SCALE
BLACK (-)
RED (+)
LED Display
GND
V2
FC-
FC+
V1
(W)TH
Ignition Module (Fenwal)
Flame Sensor Current Check
(R) 24VAC
L1
IND
NC
P.SW
S1
Error Mode
Error Mode
Error Mode
Error Mode
LED Indication
LED Indication
LED Indication
LED Indication
Internal Control Failure
Internal Control Failure
Internal Control Failure
Internal Control Failure
Stea
Stea
Stea
Steady On
dy On
dy On
dy On
Air Flow Fault
Air Flow Fault
Air Flow Fault
Air Flow Fault
1 Flash
1 Flash
1 Flash
1 Flash
Gas valve failure (stuck open)
Gas valve failure (stuck open)
Gas valve failure (stuck open)
Gas valve failure (stuck open)
2 Flashes
2 Flashes
2 Flashes
2 Flashes
Ignition Lockout
Ignition Lockout
Ignition Lockout
Ignition Lockout
3 Flashes
3 Flashes
3 Flashes
3 Flashes
The LED located on the ignition module will flash ON
for ¼ second, then OFF for ¼ second during a fault
condition. The pause between fault codes is 3
seconds.
24.0)
INSTALLATION DATA
Date of
Installation:
# of Heaters in
System:
Serial
No.
Model:
PTS or PTU
PTS or PTU
PTS or PTU
PTS or PTU
N = Natural Gas
L = Propane Gas