Titus Electric Heat IOM - Manual (Page 10)

Problem Possible Cause Possible Solution
Disconnect or circuit breaker
Fuses
Manual reset cutout
Air switch
Automatic reset thermal cutout
P E switch
Electronic controller
Heater will not
operate or heat
Element wire burned out
Transformer
Heat contactor
Wiring problem
May be in off position
May be blown, wrong amp size; replace with new fuses of
correct size
If opened, manually reset it
Insufficient air flow or tube is disconnected from air
pickup probe to air switch
Opened circuit from over heating, increase airflow
Check if wired DA/NC or RA/NO terminal and common
Check to see if controller is setup for proper heat
sequence
Use ohm meter to check for resistance, no resistance,
replace with new elements
Check to see if getting 24 volts on secondary side +/-2
volts or replace new
Won't close contacts with power to holding coil terminals;
replace with new contactor
Check if correctly wired per wire diagram
Heater cycles
Not sufficient air flow at times, increase airflow
Short on volt amps for full operation of equipment; need
larger transformer
Transformer under sized or air switch not staying closed;
need larger transformer or more air for air switch
Increase air flow or look for insulation obstructing airflow
over coil
Air switch opening and closing
Transformer
Contactor chattering
Automatic reset thermal cutout
Troubleshooting - Problems and Possible Solutions
EHeat-IOM-10.0 6-1-01
605 Shiloh Road • Plano, Texas 75074 • 972-212-4800
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