13
RHT
Series
3.0
Operation
• Diagnostics
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.
Figure 3.1
•
LED Operation Indicator Lights
Light 1(amber)
Indicates High
Fire Mode
Light 2 (amber)
Indicates Low
Fire Mode
Operational Indicator Lights
