Hired-Hand Universal Ray Tube Heaters: AG2 Series Rev.11-07 - Manual (Page 13)

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3.0 Operation • Diagnostics
Chart 3.1 • LED Fault Code Status
LED Code Fault Status Fault Code Delay*
Initial flash on power up, No fault, normal operation No Delay
then steady off
Steady ON Module failure / Internal fault No Delay
1 flash Ignition failure 30 – 32 minutes
2 or 3 flashes APS (Air Proving Switch) 10 – 12 minutes
(Fan / Intake / Exhaust)
4 flashes Solenoid valve fault No Delay
Leaky valve
Flame amplifier fault
No flash on 117V startup Transformer fault No Delay
*Some LED codes have a time delay before the LED will flash.
AG2 Series
Diagnostics
Lockout:
The controls will automatically lockout the heater system when an external or system fault occurs. There
are two types of lockout:
Soft Lockout: The heater will attempt to light three times. In the event of a failed attempt to light, (gas
pressure, valve, no flame sense etc.), the heater will enter a soft lockout period for 30
minutes and then attempt to light three more times before entering Hard Lockout mode.
Hard Lockout: If proof of flame is not established, a component failure occurs or blockages are evident,
the heater will enter hard lockout. If lockout occurs, the control can be reset by briefly
interrupting the power source. Refer to Chart 3.1 below for a description of LED codes.
Figure 3.1 • LED Operation Indicator Lights
Note: Hard lockout LED CODE will appear upon completion of the soft lockout sequence of operation.
Light 1(amber)
Indicates High
Fire Mode
Light 2 (amber)
Indicates Low
Fire Mode
Light 3 (red)
Indicates Diagnostic
Fault Code Status
(see Chart 3.1)
Operational Indicator Lights