Johnson & Starley ECONOMAIRE 32, Installation, Commissioning & Servicing Instructions

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16. DEFECT DIAGNOSIS
IMPORTANT: If an electrical defect occurs after installation of the appliance; preliminary earth continuity, polarity, and
resistance to earth checks should be carried out with a multimeter. On completion of any maintenance/fault-finding task
that has required the breaking and remaking of electrical connections, then checks of continuity, polarity, and resistance
to earth must be repeated.
16.1 The following table shows the LED status indicator display and the corresponding fault condition, along with the lockout type.
It should be noted that under certain conditions the red LED relating to the air heater may flash. This is part of the control
sequence and the module should reset automatically. It is ONLY necessary to press the “RESET” button if the red LED is
continually illuminated !
NOTE: When the air heater and water circulator are used in combination, the status indications for the water circulator will
override those for the air heater; therefore LED displays “8” and “9” will override “5” and “6”. For this reason, it is strongly
recommended that the air heater and water circulator be commissioned independently of each other.
DEFECT DIAGNOSIS
LED CYCLE FAULT CONDITION LOCKOUT TYPE
0
Running None - all is well NONE
1
Air Proving Air switch closed ABSOLUTE
2
Air Proving Gas valve relay ON (either) ABSOLUTE
3
Air Proving Air switch Closure failure ABSOLUTE
4
Prove Heater Relay Gas valve current, relay should be open AIR HEATER
5
Prove Heater Valve None (wait for ignition burner) AIR HEATER
6
Prove Heater Valve Flame failure AIR HEATER
7
Prove Circulator Relay Gas valve current, relay should open CIRCULATOR
8
Prove Circulator Valve None (wait for ignition burner) CIRCULATOR
9
Prove Circulator Valve Flame failure CIRCULATOR
A
Running Excessive cabinet temperature ABSOLUTE
C
Running Air flow senor our of range AIR HEATER
E
Running Problem with air circulator fan AIR HEATER
F
Running Air heater limit stat AIR HEATER
H
Running Circulator limit stat CIRCULATOR
L Running Open air flow sensor AIR HEATER
TABLE 6
FAULT FINDING