Instructions / Assembly

ManualsBrandsHTP ManualsHeating, Ventilation, and Air ConditioningElite FT Gas Heating Water Boiler with 3,99,000 BTU

Fault Code F02

SUPPLY SENSOR F02

PUMP ON

Indicates that the supply temperature sensor of the boiler

has failed. This is a serious safety issue and the boiler will

not restart until the sensor is replaced by a technician and

he pushes the RESET button on the display. This situation

is indicated by the red light on the display and the flashing

word LOCKOUT. During this lockout fault, the pump will be

on as indicated on the second line of the display.

1. Check the electrical connection to the thermistor on

the outlet manifold. Verify 5 VDC by checking in Molex

connector. If there is no 5 VDC, check the harness. If

harness is OK, replace control. NOTE: The boiler will

reset automatically. Verify thermistor values by

referencing chart in this manual.

2. Replace thermistor if necessary.

Fault Code F03

RETURN SENSOR F03

PUMP ON

This display indicates that the return temperature sensor of

the boiler has failed. This code indicates a serious safety

issue and the boiler will not restart until the sensor is

replaced by a technician and he pushes the RESET button

on the display. This situation is indicated by the red light on

the display and the word LOCKOUT flashing on the display.

During this lockout fault, the pump will be on as indicated on

the second line of the display.

1. Check circulator pump operation.

2. Assure that there is adequate flow through the boiler

by accessing the status menu and assuring that there is

less than a 50°F rise from the return thermistor to the

supply thermistor.

3. Troubleshoot thermistor by following steps in F02.

Fault Code F04

FLUE SENSOR F04

PUMP ON

This display indicates that the flue temperature sensor of the

boiler has failed. This is a serious safety issue. The boiler will

not restart until the sensor is replaced by a technician and he

pushes the RESET button on the display. This situation is

indicated by the red light and the flashing word LOCKOUT on

the display. During this lockout fault, the pump will be on as

indicated on the second line of the display.

Inspect the flue sensor for physical damage or

corrosion and replace it if necessary. Check the

electrical connection to the flue sensor and repair as

necessary. Measure the resistance of the sensor and

refer to the Supply Temperature Sensor chart in Table

29 of this manual. The temperature on the chart

should be close to the same as the temperature in the

flue. If not, replace the flue sensor.

SCREEN

DESCRIPTION

POSSIBLE REMEDY

Fault Code F05

SUPPLY TEMP HIGH F05

PUMP ON

This display indicates that the supply temperature of the boiler

is excessive. If accompanied by the red FAULT light and

LOCKOUT flashing on the display, this code indicates that the

temperature on the supply sensor has exceeded 230

F and a

serious safety issue exists. The boiler will not restart until the

cause of the excessive temperature is repaired by a technician

and the RESET button is pushed on the display.

If the FAULT light is not illuminated and this message is

displayed, then the supply temperature of the boiler is at or

above 210

F. The message will clear automatically when the

temperature drops below 194

F. During the time that this

message or lockout fault is displayed, the pump will be on as

indicated on the second line.

1. Check circulator pump operation.

2. Assure that there is adequate flow through the

boiler by accessing the status menu and assuring that

there is less than a 50°F rise from the return

thermistor to the supply thermistor.

3. Check the direction of flow off the boiler circulator.

(See Piping Details in this manual.)

4. Troubleshoot the thermistor by following steps in

F02.

Fault Code F06

RETURN TEMP HIGH F06

PUMP ON

This display indicates that the return temperature of the

boiler is excessive. If accompanied by the red FAULT light

and LOCKOUT flashing on the display, the return sensor

temperature has exceeded 230

F and a serious safety issue

exists. The boiler will not restart until the cause of excessive

temperature is repaired by a technician and the boiler is

RESET.

If the red FAULT light is not illuminated, then the return tem-

perature of the boiler is at or above 210

F. The message will

clear automatically when the temperature drops below 194

F. During the time that this message or lockout fault is dis-

played, the pump will be on as indicated on the second line.

1. Check circulator pump operation.

2. Assure that there is adequate flow through the boiler

by accessing the status menu and assuring that there is

less than a 50°F rise from the return thermistor to the

supply thermistor.

3. Check the direction of flow on boiler circulator. (See

Piping Details in this manual.)

4. Troubleshoot thermistor by following steps in F02.

SCREEN

DESCRIPTION

POSSIBLE REMEDY

Fault Code F09

NO FLAME ON IGN F09

PUMP ON

The boiler tried to ignite four

times during one heat call and

failed. The red FAULT light and

LOCKOUT will flash on the

display. This code indicates a

serious safety issue. The boiler

will not restart until the cause of

ignition failure is repaired by a

technician and he pushes the

RESET button on the display.

During this lockout fault, the

pump will remain on as indicated

on the second line of the display.

1. Watch the igniter through the observation window provided.

2. If there is no spark, check the spark electrode for the proper .156” (3.96 mm)

gap (See Figure 36).

3. Remove any corrosion from the spark electrode and flame rectifier probe.

4. If there is a spark but no flame, check the gas supply to the boiler.

5. If there is a flame, check the flame sensor.

6. Check any flue blockage or condensate blocks.