“System Sentinel”Troubleshooting Guide

Section 5... the “ECO” LED

NO

 

 

 

Is the "ECO" LED Illuinated?

ECO is “open”.

Allow tank to cool,

 

 

 

and reset. If ECO again trips, the

 

 

 

Thermostat/High limit is defective.

 

 

YES

Replace as required.

 

 

 

 

 

Is“ECO LED now illuminated?

 

 

 

NO

 

 

 

Is the Pilot Flame burning?

 

YES

 

The System Sentinel Panel is

 

 

defective and must be replaced.

NO

 

 

 

 

 

 

 

 

YES

T h e

ECO (Energy Cut-Off device) is not tripped (open) and power is being supplied to the “PV” termi-

nal on the Gas ControlValve.

Refer to

Section 3...the “IGNITION” LED; and Section 4...the “PILOT VALVE”LED of Troubleshoot- ing Guide. Repair or replace components as required.

Section 6... the “MAIN VALVE” LED

NO

 

 

 

 

Is the“MAIN VALVE”LED Illuminated?

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

The Ignition Control Module is

 

 

 

 

 

 

 

 

 

 

 

providing 24 VAC between the

Is the Pilot Flame

burning?

 

YES

Is Main Burner on?

 

 

YES

“MV” and “MV/PV” terminals on

 

 

 

 

 

 

 

 

 

 

 

Gas Control Valve, and Main Burn-

NO

 

 

 

 

NO

 

 

 

 

 

er should be operating

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is 24 VAC present between Blue wire on

 

 

 

 

 

 

Is the Spark Ignitor operating?

 

The System Sentinel Panel is

“MV Terminal and White wire on “MV/PV”

 

 

defective and must be replaced.

(Can sparking be heard?)

terminal on the Ignition Control Module?

 

 

 

 

 

 

 

 

 

 

 

 

YES

Is the inlet gas pressure at or below the

 

 

 

 

 

NO

 

 

NO

 

maximum as specified on the rating plate?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Is 24 VAC present between Blue

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

wire on “MV Terminal and White

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wire on “MV/PV” terminal on gas

 

 

 

 

 

 

 

 

 

 

valve?

 

 

 

Main GasValve is inoperative

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and must be replaced.

Ignition Control Module is inoperative and

 

 

 

 

Check Continuity of Blue and White

must be replaced.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wires between Ignition Control Module and

 

 

 

 

 

 

NO

 

Gas Control Valve. Repair or replace as

 

 

 

 

 

 

 

 

 

required to restore power to gas valve.

!CAUTION

Label all wires prior to disconnection when servicing controls.Wiring errors can cause improper and dangerous operation. VERIFY PROP-

ER OPERATION AFTER SERVICING!

24

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Rheem Commercial Power Direct Vent Water heater installation instructions Eco Led, Main Valve Led
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Commercial Power Direct Vent Water heater specifications

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