Krendl 1300 - Page 37

Rev. Date: 12/27/17 Page 34
MODEL #1300/2300
Problem
1) Voltmeter showing no voltage or low voltage.
Electrical Troubleshooting
IMPORTANT
Whenever power is interrupted to unit (i.e., unplugged, main disconnect switch off, kill switch depressed),
power must be restored by correcting power interruption condition and pressing green start button.
Corrective Action
A. Turn Main Disconnect Switch to ON position.
B. Check input cord(s) for proper connection to power source.
C. Check power source for proper voltage.
D. Open Main Control Panel door and check voltage with
multitester at voltmeter terminals. Replace defective volt-
meter.
E. On single input, 240volt/60hz. units, check for proper wiring
of four prong plug and connector body.
A. Check voltmeter. If no voltage, refer to #1 above.
B. Check power on both input cords. (double input machines)
C. Check indicator tab on the top of the dropout relay. If tab is
out, relay is not engaged. If tab is in, relay is engaged. On
double input machines, check the dropout relay on the top
(C5). (If tab is "in", refer to #3.)
A. Check transformer breaker (BK3) with continuity tester.
B. Check secondary output of transformer (24volt). Replace if
necessary
A. Check for proper start-up conditions as mentioned at
beginning of this section. (See #2)
B. Be sure remote control cord is properly plugged into Main
Control panel.
C. Check remote control cord and hand pendant switch for
damage or loose connections.
D. If neither Remote mode or Manual mode will function, check
transformer breaker (BK3) with continuity tester.
A. Check operation in remote mode and manual mode with 4-
Position Selector Switch and remote hand pendant.
B. Check blower control for ON position.
C. Check for broken or loose wiring connections in Main
Control Panel.
D. Check blower motor. Disconnect power supply and visually
inspect system for defective, broken or loose wiring connec-
tions inside blower box or blower unit.
E. Check blower breaker(s) in Main Control Panel with a
continuity tester.
F. Check Blower Controls. Disconnect Blower Control wires
on Main Control Panel door and reconnect the two power
leads bypassing the Blower Control. (Blower will run full
speed only.)
G. Visually inspect and/or replace blower relay (C2) inside
Main Control Panel.
2) Dropout relay does not engage.
3) Dropout relay is engaged (tab is "in"), but machine will not
run.
4) Machine does not function with hand pendant while 4-
Position Selector Switch is in REMOTE mode.
5) Blower motor does not run, but agitator motor does run.