Fault and alert messages, Ac reversed, Ignition failure – State Industries ULTRA FORCE 101 User Manual

Page 62: Low gas pressure, Low igniter current, Blocked exhaust

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62

fault and alert messages

Call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service agent

in your area.

possible causes - check/repair

displayed fault/alert message

• The water heater’s control system is polarity sensitive and will lock

out and disable heating operation if the polarity of the power supply

is reversed. The control system will display the “AC reversed”

Fault message on the LCD in this condition. See Power Supply

Connections on page 41 for instructions on how to properly connect

the power supply.
note: Electronic flame sensing requires correct power supply

polarity AND a proper earth ground to the water heater and the

main burner. The control system does not verify earth ground

but this should be checked first if ignition failure occurs. See the

ignition Failure Fault message information below.

CHANGE

BACK

ADVANCED

AC Reversed

Fault occurred 2 mins ago

Power supply to water heater

has reversed polarity.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

• The control system has failed to ignite the main burner.
• Water heater is not properly grounded, loose or open ground wire

to the main burner - see Power Supply Connections on page 41.

• Corroded flame sensor, clean flame sensor with fine steel wool

(replace if damaged) - see Figure 2 on page 7.

• Loose or open wiring to the flame sensor.
• Loose or open wiring to the 24 Volt Gas Valve.
• 24 Volt Gas Valve on/off switch in the "off" position - see Figure 57

and Figure 58 on page 53.

• Supply gas turned off, low gas volume - see page 39.
• intake air and/or vent piping is restricted or improperly installed -

see Venting installation on page 22.

• Low or no manifold gas pressure to the main burner - see initial

Start Up on page 52.

CHANGE

BACK

ADVANCED

Ignition Failure

Fault occurred 2 mins ago

The water heater has failed to

ignite the burner.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

• The control system has detected the Low Gas Pressure Switch

contacts are open.

• Loose or open wiring to the Low Gas Pressure Switch - see

beginning on page 8 for location.

• Supply gas pressure is below the required minimum pressure - see

Table 3 on page 12 .

• Supply gas is turned off at the main Shutoff Valve.
• Supply gas pressure is dropping when other gas fired appliances

on a common supply gas line are operating.

Low volume of supply gas - see Supply Gas Line installation on

page 39 and the requirements for the Gas Supply Systems on

page 14 and Supply Gas regulator on page 14.

CHANGE

BACK

ADVANCED

Low Gas Pressure

Fault occurred 2 mins ago

The supply gas pressure to the

water heater is low.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

• The control system has detected low current (AC amps) from the

Hot Surface igniter. The control system monitors igniter current

and will declare this Fault condition if the current is not at or above

the programmed minimum requirement - see the Sequence Of

Operation on page 58 for minimum igniter amp requirements.

• Loose or open wiring to the Hot Surface igniter - see Figure 2 on

page 7 for igniter location.

• Damaged, worn or open circuit Hot Surface igniter.

note: Hot surface igniters are wearing parts. Wear is directly

related to heating cycle count. Heating cycle count can be viewed

in the Heater Information menu - see Heater Information on page

49. increasing the Differential setting reduces heating cycle count -

see Operating Set Point And Differential Adjustment on page 47.

CHANGE

BACK

ADVANCED

Low Igniter Current

Fault occurred 2 mins ago

Igniter current is low.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

• The control system has detected the blocked Exhaust Switch

contacts are open.

• The condensate drain is blocked filling the exhaust elbow with

water - clear the condensate drain - see Figure 9 on page 17.

• Loose or open wiring to the blocked Exhaust Switch - see

beginning on page 8 for switch location.

• restricted/blocked vent piping - condensate trapped in low point.
• Excessive equivalent pipe length, exceeded the maximum number

of 90° elbows or wrong pipe size used in the vent piping system -

see Venting requirements on page 24.

• Excessive wind outdoors pressurizing the vent system piping.
• Excessive negative air pressure in the installed space.

CHANGE

BACK

ADVANCED

Blocked Exhaust

Fault occurred 2 mins ago

The exhaust is blocked or

restricted. Ensure

condensate hose is draining.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

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