Intermittent heating

Thermal overload of main

The main fan motors are equipped with internal

 

 

fan motor(s)

thermal protection and will cease to operate if

 

 

 

overheating occurs. As the motors overheat and then

 

 

 

cool, this will cause the units to cycle on and off

 

 

 

intermittently. Improper ventilation or lack of

 

 

 

preventive maintenance may cause this problem.

 

 

 

Also, most of the problems listed under “Oven will not

 

 

 

heat” can cause intermittent failure.

 

Conveyor will not

Power supply

Check for supply voltage at terminals L1 and L2. If

 

run

 

voltage is not present check breakers.

 

 

Power switch

Check continuity between switch terminals. Replace

 

 

 

switch as needed.

 

 

Fuse, 10 Amp.

Check and/or replace.

 

 

Fuse holder

Check and/or replace.

 

 

Hi-limit thermostat(s),

Check for voltage on both sides of the switch.

 

 

control box

Terminals are normally closed. If open, reset and test

 

 

 

for proper operation. If thermostat will not hold, and

 

 

 

the control box temperature is not exceeding 140°F

 

 

 

(60°C), replace thermostat.

 

 

Relay, oven control

Check for line voltage to the relay coil. If voltage is not

 

 

 

present, trace wiring back to the hi-limit thermostat. If

 

 

 

voltage is present, check to insure contacts are

 

 

 

closing. Replace relay as needed.

 

 

Control transformer

Check for line voltage supply to the primary of the

 

 

 

control transformer. If no voltage is present, trace

 

 

 

wiring back to the oven power relay. If voltage is

 

 

 

present, check for 24VAC at the transformer

 

 

 

secondary. If there is primary voltage, but no

 

 

 

secondary voltage, replace control transformer.

 

 

Conveyor motor

Check for line voltage supply to the conveyor motor at

 

 

 

wire #28 to neutral. If no voltage is present, trace

 

 

 

wiring back to the oven power relay. If voltage is

 

 

 

present and the motor will not run, check the motor

 

 

 

windings for opens or shorts.

 

 

 

WITH POWER OFF: Check the motor windings as

 

 

 

follows:

 

 

 

Grey to black - 116 ohms

 

 

 

Grey to brown - 116 ohms

 

 

 

Brown to black - 230 ohms

 

 

Capacitor, conveyor motor

Check for shorts or grounds. Replace capacitor as

 

 

 

needed.

 

 

 

WARNING: Capacitor has a stored charge, discharge

 

 

 

before testing.

 

 

Switch, conveyor reversing

Check continuity between switch terminals, Replace

 

 

 

switch as needed.

 

 

Oven control

If there is supply voltage to the motor. And the motor,

 

 

 

capacitor, and reversing switch check good, replace

 

 

 

the oven control.

 

Conveyor motor

NOTE: Display will indicate

 

 

runs, but there is

“Belt jam”

 

 

no speed display

Oven control

Check for output voltage from the oven control to hall

 

 

 

effect sensor (sensor is located in conveyor motor).

 

 

 

Measure voltage at the motor connector, red wire and

 

 

 

yellow wire. Voltage should be approx. 10VDC. If no

 

 

 

voltage is present, trace wiring back to oven control. If

 

 

 

there is no voltage present at the oven control,

 

 

 

replace the oven control.

Low Profile – 1600 Series Adv Dig Electric S.M. – Int’l

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Lincoln 1629-000-A, 1621-000-EA, 1628-000-A service manual
Page 6 Page 8

1628-000-A, 1629-000-A, 1621-000-EA specifications

Lincoln has long been synonymous with luxury and innovation in the automotive industry, and the recent models such as the Lincoln 1621-000-EA, 1629-000-A, and 1628-000-A showcase this legacy. These vehicles represent a harmonious blend of cutting-edge technology, sophisticated design, and world-class performance that is characteristic of the Lincoln brand.

The Lincoln 1621-000-EA stands out with its sleek, aerodynamic silhouette and bold front grille. One of its main features is the advanced adaptive cruise control system, which not only maintains a safe distance from the car ahead but also adapts to changing road conditions. This model is equipped with an intelligent All-Wheel Drive (AWD) system that enhances traction and stability, making it ideal for various weather conditions. The interior is richly appointed with premium materials, offering configurations that prioritize passenger comfort and convenience.

Next, we have the Lincoln 1629-000-A, which pushes the envelope with its eco-friendly hybrid technology. It features a powerful combination of a gasoline engine and an electric motor, delivering impressive fuel efficiency without sacrificing performance. Noteworthy characteristics include a spacious cabin with state-of-the-art infotainment systems, wireless connectivity options, and intuitive voice commands that allow drivers to stay focused on the road. The 1629-000-A also incorporates Lincoln Co-Pilot360™, a suite of safety features designed to assist drivers in various situations, enhancing overall safety.

Finally, the Lincoln 1628-000-A rounds out this trio with an emphasis on luxury and personalization. This model boasts customizable ambient lighting and a high-fidelity sound system that elevates the driving experience. Its user-friendly interface combines touchscreen technology with physical controls, ensuring that all functions are easily accessible. The 1628-000-A also emphasizes eco-conscious luxury with sustainable materials used throughout the interior, appealing to modern consumers’ desire for environmental responsibility.

Together, the Lincoln 1621-000-EA, 1629-000-A, and 1628-000-A represent a commitment to excellence that defines the Lincoln brand. With their fusion of advanced technology, luxurious features, and a focus on sustainability, these vehicles not only offer an exceptional driving experience but also set new standards in the luxury automotive market. As Lincoln continues to innovate, these models are likely to attract discerning drivers looking for a perfect blend of style, performance, and cutting-edge technology.
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