11
TROUBLESHOOTING
OPERATOR TROUBLESHOOTING CHART
SYMPTOM
POSSIBLE
CAUSE(S)
ACTION
RECOMMENDED
NOTHING WORKS.
EM switch is off. Incoming 3 phase voltage
Turn EM switch on. Check incoming 3
(TOUCH SCREEN DARK)
is off. The 110-v control breaker in main
phase breaker at wall panel. Reset breaker
control panel is tripped.
in main control panel.
NOTHING WORKS.
Overload relay is tripped. Loss of a phase.
Reset overload relay. Check for 3 phase.
(TOUCH SCREEN ON AND Low 3 phase voltage.
Measure motor amps. Measure 3 phase
A RED MOTOR LIGHT IS ON).
voltage.
EVERYTHING WORKS
Lighting breaker(s) are tripped.
Reset lighting breaker(s). Check change-
BUT BOOTH LIGHTS.
over damper.
TEMPERATURE DOES NOT
Outside air temperature is greater than set-
Increase set point temperature on
RISE. (BURNER GREEN LIGHT
point temperature. Temperature controller. Booth temperature
IS ON). will not exceed 190°F
TEMPERATURE DOES NOT
Pilot has failed during fire cycle.
Push reset button on red enclosure
RISE. (BURNER RED LIGHT
Pilot manual gas valve turned off.
marked FIREYE. Turn manual valve ON.
IS ON). High limit, low gas and/or high gas If lockout repeats, call a Garmat USA
pressure switch tripped. proof of closure authorized service-technician. Touch alarm
Open. on screen and follow instructions.
TEMPERATURE TOO HIGH
Controller is set to Bake or second Set-
Outside temperature above 70°F. Press the
DURING SPRAY MODE.
Point.
Moni/Mode button and press the up arrow to
Put the control into AUTO mode, press
Moni/Mode button to go back top the
normal display. Set SUMMER/WINTER
switch to SUMMER.
OPERATION SEQUENCE
This section is provided to assist a service technician
and explain in detail what is happening during
“normal” operation.
SPRAY/BAKE BOOTH OPERATION
The spray/bake booth has four separate modes of
operation: POWER ON, SPRAY, BAKE, and
SHUTDOWN.
POWER ON:
The green light marked POWER is lit when
the booth is in POWER ON mode. The 110v
and 24v control voltages are provided from the
secondary side of the control transformer. The
primary side of the control transformer is
connected to the incoming three-phase motor
voltage supply.
The 120v is connected through a jumper
connection provided for use with a NC contact
on an alternative fire suppression system that
