OWNER’S MANUAL
MODEL HST13 – AUTOTOAST™ VERTICAL TOASTER
135168CH7 RV042910
7
Copyright
©
2010 Marshall Air Systems, Inc.
All Rights Reserved.
A. Verify AC voltage to board and DC voltage to motor from board. If there is AC voltage in, but no
DC voltage out, replace board.
B. Check all connections on board and terminal strip.
C. Verify that board is wired correctly. (See schematic in Owner’s Manual.)
D. Make sure that switch on board is in 230v position.
E. Check motor plug connection for grease or contamination.
F. Check speed control pot with meter.
a. Two outside terminals should give a full value reading.
b. Each outside terminal separately with center terminal
should give a reading that varies from 0 to full value as
speed control knob is turned or full value to 0 according
to which outside terminal meter is connected.
PROBLEM:
6. Product is over or under toasted.
SOLUTION:
A. Check toasting speed. Good toasting will occur in 10 to 23 seconds depending on product and
preference.
B. Check the gap settings. There must be compression of the bun as it feeds into the toaster.
Decreasing the gap will increase bun temperature and darken surface color.
C. Check conditions of toaster platen sheet and belts. Clean both as noted in this manual.
D. Make sure conveyor belts are not binding.
E. Check drive system for loose sprockets or chain.
F. Check that heaters are cycling. Do this by using an amp clamp on either of the wires from the
controller to the platen. You are looking for cycling. Also verify that the temperature controllers
have power.
G. Check position of temperature control. This is located behind a small panel on bottom of toaster
on some units. After changing temperature setting, allow unit 20 minutes to stabilize.
PROBLEM:
7. Buns do not feed properly into toaster.
SOLUTION:
A. Check condition of the toaster platen sheet to be sure buns are not sticking. Clean sheet as
described in daily maintenance. Replace if needed. Life of sheet is 1 – 2 months. Sheet should
be rotated daily.
B. Belts need cleaning as described under the Weekly Maintenance.
DO NOT USE ABRASIVES
TO CLEAN.
C. Check toaster platen sheet installation. Sheet should be creased in middle so that platen is
covered totally on both sides.
D. Toaster gap set too close or too far. See instructions on Page 1, Number 10.
PROBLEM:
8. Outside Bun Toasted, Internal Bun not toasted. (No heat on Center Platen) serial no’s
0601TS0670 Through 928.
