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L
ED FLASH(ES)
Green Off
1 Red
2 Red
3 Red
4 Red
5 Red
6 Red
7 Red
8 Red
9 Red
10 Red
I
Internal controller or Room Air Fan failure.
DO NOT operate on heat until Fan failure cleared.
Roll-out open. Cycle power to reset.
Flame sensed with gas valve de-energized.
Pressure switch(es) remains open. Combustion
Blower cycles until low pressure switch closes. If
running, high pressure switch is open.
Pressure switch(es) remains closed. Combustion
Blower will not operate until switch(es) opened.
Open high room air limit switch.
Room Air Fan failed or rollout switch(es) open.
System lockout reset by recycling power.
Caution: Do not run on heat until fan operational.
115 Volt AC power reversed or improper ground.
Low flame sense signal. 1 hour lockout.
Too many high air temperature limit trips. 1 hour
lockout.
Too many low pressure switch trips after ignition. 1
hour lockout
1 hour lockout. Reset by cycling power or
thermostat.
CHECK and REPAIR
1. Replace Integrated Furnace Control.
2
. Rollouts or Fan failure– see 5 Red
Flashes.
1
. Pressure switch failure.
2. Pressure switch tubing, and wiring.
3. Obstructions in air intake or exhaust
flue system that prevent proper
combustion air flow.
1. Pressure switch(es) failure.
jumpered.
Dirty filter or room air vents closed.
1. Wiring in good condition and securely
connected. Drip leg at Motor
connector.
2. Check Room Air Fan by running A/C or
Fan (not heat).
3. Blockage in heat exchanger or venting.
Line voltage polarity, and earth ground.
1. Flame at burner.
2. Dirty or cracked flame sensor.
See 4 Red Flashes
See 2 Red Flashes.
1. Gas supply off or at too low pressure.
2.
Smell gas? Igniter failure.
3. Earth grounded.
TABLE 9
41
NDICATES (FEDDERS UTEC 1170-25 CONTROLLER)
Mis-wiring is probable cause.
2. Pressure switch(es) mis-wired or