Duke PFB PROOFER BASE, Инструкция по установке, эксплуатации, запасным частям и обслуживанию

Страница: 8 / 11

8 of 11
DIAGNOSTICS
Equipment Problem Remedy
Proofer will not operate Make sure cord is plugged in and wall circuit breaker is
turned on. Check power to master switch at black wire #1 &
white wire #2. If power is present turn switch on and read
voltage across wires #3 & #4. If no voltage is present replace
switch.
Proofer on, no fan Read voltage across wires #4 & #12 going to fan motor. If
voltage is present replace fan motor.
Proofer on, no heat Check power across wires #5, & #7 at air heat element. If
voltage is present replace element. If no voltage is present,
read voltage from wire #7 on element to ground; if no
voltage, check the controller. Amber light will illuminate if
controller is working.
Humidity feature not working (Humidity element energized only when controller is calling
for heat to air element.) Turn infinite control on. Verify
voltage across L1 & L2 of infinite switch. Read voltage
across H1 & H2 of infinite switch; if not present replace
infinite switch. If voltage is present check voltage at
humidity element at wires #6 & #13. If voltage is present
replace humidity element.
Thermostat out of calibration Check proofer temperature with remote test instrument.
Loosen screw to controller knob, turn knob to dial setting
that agrees with test instrument reading. Tighten screw.