6
* REPAIRS SHOULD BE PERFORMED BY A MECHANIC / ELECTRICIAN
TROUBLESHOOTING - UNHEATED UNITS
SYMPTOMS
POSSIBLE CAUSES
CHECK/REMEDIES
NON-OPERATIONAL
Main circuit breaker or discon
-
nect is in OFF position.
Move switch to ON position
or reset.
Loose electrical connection.
Check / tighten connection.
Fuse blown.
Replace fuse.
MINIMAL / NO AIR
Air Intake and filter clogged.
Remove, clean and / or replace.
Air intake restricted.
Remove obstruction or move air
curtain.
Fan not rotating.
Affix set screw(s) to shaft.
Air discharge inadequate.
Obstruction in discharge path
(i.e. door headers, automatic
door openers, etc.) Move air
curtain.
Air discharge deflecting into
wall.
For every 1 inch air curtain is
mounted above the door head
-
er, air curtain should be moved
away from the wall
1/2 inch.
Negative air pressure.
Equalize building pressure.
Multiple motor units: (only) one
motor not operating.
Repair or replace motor.
EXCESSIVE BLOWER NOISE/
VIBRATION
Blower wheel loose on motor
shaft.
Tighten set screw(s).
Air intake vibration.
Tighten air intake screws.
Blower wheel dirty.
Remove and clean.
Damaged blower or unbalanced
wheel.
Repair or replace.
Motor being worn.
Replace motor.
Fan hitting / rubbing fan hous
-
ing.
Motor shaft bent. Repair or
replace. Free housing from fan’s
path.
ELECTRIC CONTROLS NOT
FUNCTIONING
Switch in OFF position.
Move switch to ON position.
Door switch won’t turn unit
on/off when used in conjunc
-
tion with Hand/Off/Automatic
switch.
Move switch to AUTOMATIC
position. Check wiring.
Improperly wired.
Check and repair.
Faulty switch.
Repair or replace.
EXCESSIVE AIR SPILL TO OUTSIDE
OR INSIDE.
Nozzle angle too great.
Optimum angle setting is 15
degrees towards outside.
RETURN POLICY
•
For all warranty issues contact factory at 724-588-3305 or toll-free 888-321-2473.
•
All returns must be approved in advance and accompanied by an RGA number or
will not be accepted.
•
Once units have been installed no returns will be allowed.
•
Units that are returned damaged will not be accepted and full payment will be required.
•
No returns will be allowed after 10 working days from shipment.
•
Contact factory for Restocking Fee Schedule.
SYMPTOMS
POSSIBLE CAUSES
CHECK/REMEDIES
EXCESSIVE HEAT
Not enough air over electric
heating coil.
See MINIMAL / NO AIR
Improper voltage.
Supply voltage that unit re
-
quires.
Thermostat setting is too high.
Switch to a lower temperature
setting.
NO HEAT / NOT ENOUGH HEAT
Time delay is improperly wired.
Blown out, replace.
Heat switch is in OFF position.
Rotate to ON position.
Heat switch is in ON position.
Check wiring. Replace switch or
contactor.
Coil(s) burned out.
Replace.
Heaters glowing red and thermal
cut outs activating
Not enough air over coil. See
MINIMAL / NO AIR
Thermostat improperly set.
Set to desired temperature.
Heater contactor not function
-
ing.
Repair or replace.
Improperly wired.
Check and adjust.
Ambient temperature.
Units are recommended to have
a minimum of 66 degrees intake
air.
* REPAIRS SHOULD BE PERFORMED BY A MECHANIC / ELECTRICIAN
TROUBLESHOOTING - ELECTRICALLY HEATED UNITS
CLEARANCES
5
