PART 3 MAINTENANCE AND REPAIR PROCEDURES
®
www.insingermachine.com 800-344-4802
12
Immersion Heater Replacement
1. The immersion heater MUST be completely
submerged at all times. If this is not the case
contact a qualified service technician. The heated
surface should never be in contact with sludge.
See dwg. SK-4703.
2. Remove the housing covering the wiring
terminations. Disconnect the immersion heater
wires.
3. Remove the immersion heater by loosening and
removing the large hex nut.
4. Install in reverse of removal.
Tank Heat Temperature Adjustment
1. A temperature control board is provided in
the control panel for easy adjustment of tank
temperature. Though tank temperature is adjusted
during the machines factory test it is sometimes
necessary to re-adjust the temperature at start-up.
2. Locate the temperature control board. Use the
control panel layout drawing located in Section 4,
Electrical Schematic and Replacement Parts.
3. Adjust the tank temperature to the desired
temperature by turning the potentiometer located
on the temperature control board. An arrow on the
potentiometer indicates increase.
4. If the temperature does not change refer to
Troubleshooting Tank Temperatures in the next
section.
Troubleshooting Tank Temperatures
Electric Heat
1. If temperature does not change check the
temperature control board (P/N DE9-251) proper
operation. If the temperature control board is faulty,
replace.
2.
Verify tank heat contactor is working correctly. If
not, replace.
3.
Verify all immersion heaters are working properly
and not limed. If not, replace.
NOTE:
Use plumbers putty as gasketing around
the immersion heater to minimize leaks.
Ensign_40-2_TM2009
Steam Heat
1. If temperature does not change check the tempera-
ture control board (P/N DE9-251) proper operation.
If the temperature control board is faulty, replace.
2.
Verify steam pressure per machine specifications.
3.
Verify steam trap is not clogged. If so, replace.
