Bradford-White Corp MI30T*F service manual Honeywell Gas Control Troubleshooting Chart

Honeywell Gas Control Troubleshooting Chart

Flammable Vapor Ignition Resistant Water Heaters

Observe green LED indicator on Gas Control. Error flash codes are displayed with a three second pause before repeating. Check and repair the system as noted in the troubleshooting table below.

Green LED Indicator

LED Status Control Status Probable Cause

Service

Procedure

Five flashes and

three second

pause

Six flashes and

three second

pause

Seven flashes and

three second

pause

Eight flashes and

three second

pause

Thermostat/well sensor fault.

Water leak detected by accessory module.

Gas Control electronic fault detected.

Standing pilot remains on while set point knob is in “OFF” position.

1.Damage to the temperature sensor.

2.Temperature sensor resistance out of range.

Excessive amount of water in drain pan/water dam.

1.Control need to be reset.

2.Control is wet or physically damaged.

Pilot valve stuck in open position.

1.See service procedure RG-VI

1.Check T&P valve

2.Check all water fittings.

3.Pressurize and leak test tank.

1.Reset Gas Control

2.Replace Gas Control.

Replace Gas Control.

6

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