Market Forge Industries ETP-5E Quick start guide

EFFECTIVE NOVEMBER 1, 2016
ETP-5E & ETP-10E
ECO-TECH®PLUS
ELECTRIC CONVECTION STEAMER
PARTS AND SERVICE MANUAL
MARKET FORGE INDUSTRIES
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: [phone] Fax: [phone]
www.mi.com
P/N 14-0283 Rev B (10/16)
Superseding All Previous Parts Lists.
The Company reserves the right to make substitution in the event that items specied are not available.
ERRORS: Descriptive and/or typographic errors are subject to correction.

NOVEMBER 1, 2016 2 ETP-5E & ETP-10E
TABLE OF CONTENTS
GENERAL TROUBLSHOOTING GUIDE .................................................3
ELECTRICAL FAULT ISOLATION GUIDE ................................................5
TROUBLESHOOTING..................................................................6
ADJUSTMENTS .......................................................................7
WIRING DIAGRAMS ...................................................................8
ILLUSTRATED PARTS LIST
STEAMER EXPLODED VIEW......................................................... 14
COMPONENT PANEL ................................................................ 19
CABINET ASSEMBLY ................................................................ 20
ALTERNATE FILTER SYSTEM ........................................................ 23

GENERAL TROUBLSHOOTING GUIDE
PROBLEM PROBABLE CAUSE REMEDY
Cooking indicator light fails to
light with Timer set.
a. Main power circuit breaker tripped.
b. Door interlock switch contacts not
closed.
c. Door interlock switch faulty.
d. Indicator light burned out.
e. Faulty timer contacts.
f. Faulty wiring.
a. Locate external circuit breaker for
incoming power and place in ON
position.
b. Shut cooker door to close switch
contacts. Check alignment of door
with switch
c. Replace switch.
d. Replace light.
e. Replace timer.
f. Inspect condition of wire and tight-
ness of all connections. Correct as
needed.
Steam fails to enter cooking
compartment with cooking in-
dicator light on.
a. Faulty wiring. a. Inspect condition of wire and tight-
ness of all connections. Correct as
needed.
Steam enters compartment
continuously without the cook-
ing or ready light on.
a. Standby thermostat not set cor-
rectly.
b. Faulty thermostatic switch.
c. HOLD set on timer.
a. Adjust the thermostat lower.
b. Replace thermostat.
c. Rotate timer knob to ‘OFF’ position.
Timer dial not turning. a. Faulty timer motor.
b. Faulty wiring.
a. Replace timer.
b. Inspect condition of wire and tight-
ness of all connections. Correct as
needed.
Buzzer fails to sound at end of
timer setting.
a. Timer contacts faulty.
b. Buzzer faulty.
c. Faulty wiring.
a. Replace timer.
b. Replace buzzer.
c. Inspect condition of wire and tight-
ness of all connections. Correct as
needed.
Steam ows continuously
from drain line with cooker in
operation.
a. Cold water not connected.
b. Faulty cooling valve.
c. Faulty wiring.
d. Faulty or misadjusted operating.
a. Turn on external shutoff valve.
b. Replace cooling valve.
c. Inspect condition of wire and tight-
ness of all connections. Correct as
needed.
d. Inspect operation of pressure switch
and setting and operation of time
delay relay.

GENERAL TROUBLSHOOTING GUIDE
PROBLEM PROBABLE CAUSE REMEDY
Door leaks. a. Damaged door gasket.
b. Clogged compartment drain or
plumbing.
a. Check gasket for cuts and replace if
necessary.
b. Remove screen and clean drain line
or plumbing.
Water ows into cooking com-
partment.
a. Level control has failed.
b. Water has very high resistance.
(i.e. low mineral content or Reverse
Osmosis Water).
c. Scale build-up on probe.
d. Water ll solenoid valve.
a. Replace.
b. Replace level control with high sen-
sitivity control.
c. Clean all probes in steam generator.
d. Plugged, defective, clean or re-
place.
Water accumulates in com-
partment.
a. Plugged compartment drain. a. Remove screen and clean drain
line.
Water ows into drain during
shutdown.
a. Cooling valve does not close. a. Check valve for foreign material or
damage.
Water not being supplied to
Generator.
a. Water supply off.
b. Supply water pressure too low.
c. Defective water solenoid valve.
d. Level Probe shorted.
e. Defective water level control.
f. Drain valve is open.
a. Check incoming water valve is on.
b. Call supply agency.
c. Replace or clean.
d. Check and correct.
e. Replace.
f. Check valve, clean or replace.
NOTE: THESE PROBLEMS ARE AN INDICATION OF SEVERE WATER CONDITIONS WHICH SHOULD BE COR-
RECTED IMMEDIATELY TO AVOID DAMAGE TO THE COMPONENTS AND PERFORMANCE OF THE STEAMER.
CALL YOUR SERVICE AGENCY FOR ASSISTANCE.

ELECTRICAL FAULT ISOLATION GUIDE
FAILURE FAULT LOCATION
1. WILL NOT OPERATE IN EITHER HOLD OR 60-MINUTE TIMER POSI-
TIONS.
a. Incoming power
b. Timer
c. Door interlock switch
d. Wiring
2. OPERATING IN HOLD POSITION BUT NOT IN 60-MINUTE TIMER
POSITION.
a. 60-Minute timer
b. Wiring
3. OPERATES IN 60-MINUTE TIMER POSITION BUT NOT IN HOLD PO-
SITION.
a. Timer
b. Wiring
c. Hold thermostat.
4. WITH COOK INDICATOR LIGHT ON AND STEAM ENTERING THE
CAVITY, TIMER DIAL FAILS TO TURN.
a. Hold position set on timer.
b. Timer motor
c. Wiring
5. BUZZER FAILS TO SOUND AT END OF 60-MINUTE TIMER MODE. a. 60-Minute timer contacts
b. Buzzer
c. Wiring
6. STEAM FLOWS CONTINUOUSLY FROM BOILER DRAIN LINE. a. Cooling valve needs replacing
b. Wiring
c. Thermostat faulty.

TROUBLESHOOTING
TIMER MOTOR
A defective timer motor will cause continuous operation in
the TIME mode, with the timer dial failing to return to the
“0 - Minute” position.
To conrm timer motor condition, proceed as follows:
1. Carefully check motor wire leads and tighten loose
connections.
2. Turn on power to the steamer.
3. Set timer dial (any setting beyond “0 - Minute”). If
operation is correct, the motor will turn the dial toward
“0 - Minute”. If the motor fails to operate, it is defec-
tive and the entire timer must be replaced.
4. Shut off power to the cooker
DOOR INTERLOCK SWITCH
Malfunction of the cooker door interlock switch prevents
indicator lights from turning on and steam generator from
operating when the timer dial is set. If steam does not en-
ter the compartment and the cooking indicator light fails
to turn on with the door latch securely engaged, the fault
may be in the door interlock switch. Proceed as follows:
1. Turn off power to the cooker.
2. Disconnect wires to the door switch terminals.
3. Connect an ohmmeter between the terminals of the
switch. The switch is marked “C” for common, ‘NC’
for normally closed and “NO” for normally open.
4. Actuate the switch by closing the cooking compart-
ment door. If a zero reading cannot be obtained be-
tween the C and NO terminals, the switch is defective
and must be replaced.
5. Remove the ohmmeter and replace the leads on
switch terminals.
INDICATOR LIGHTS
If the cooker compartment functions correctly, with the
single exception that the indicator light fails to light during
operation, the fault is a defective indicator light. A “burned
out” or defective light is veried by using an AC volt-meter
at the leads, with input power on the selector switch in the
correct position for that timer, the timer set, and the door
latches closed. If 240 volts is present, the fault is in the in-
dicator light and requires replacement. If 240 volts is not
present, the fault is in the wiring or control components
(selector switch, timer or door switch).
BUZZER
If the buzzer does not sound at the termination of the
operator-selected timer setting (timer dial returned to “0
- Minute” position), the fault may be a defective buzzer.
Buzzer operation is veried using an AC volt-meter at
buzzer coil connections with input power on and selec-
tor switch and coinciding timer dial set at the “0 - Minute”
position. If voltage is 240 volts, the fault is in the buzzer,
which must be replaced. If 240 volts is not present, the
fault is in the wiring or control components (timer or selec-
tor switch).
WIRING
Using an ohmmeter, wiring continuity between the con-
nections shown on the wiring diagram is readily veried.
This is best done in stages, removing only those wires
required for each continuity check. As each lead is re-
placed, it should be checked for evidence of corrosion,
and cleaned if necessary. All leads must be tightly at-
tached so as to provide a good electrical connection.

ADJUSTMENTS
WARNING
At least twice a year, have an authorized
service person clean and adjust the unit for
maximum performance.
ADJUSTMENT FOR HIGH ALTITUDE LOCATIONS
The steamer has been factory set so that when it is ON,
and during the READY phase, it will maintain water tem-
perature in the steam generator tank at approximately
200°F (93°C) (just below water boiling point). However,
for high altitude locations, an authorized service agency
must adjust the steamer to achieve this temperature.
CAUTION
Shut off main electrical power to unit.
DOOR GASKET REPLACEMENT
The cooking compartment door gaskets are made of a
silicone-type rubber material that is very durable but sub-
ject to wear during normal operation. Should the gasket
leak replace it.
1. Open the cooking compartment door.
2. Remove the four screws on the outside of the door
frame, and remove the door panel assembly.
3. Remove the six screws from the gasket plate in the
door panel assembly.
4. Remove the gasket plate and the door gasket from
door panel.
5. Install the new door gasket to the door panel. Re-
place the gasket plate and six screws.
6. Reassemble the door panel assembly in the door
frame using the four screws.
7. Gasket replacement is now complete.
Door may be difcult to close until gasket has compressed
to conform to opening. Leaving door closed overnight will
compress gasket.
EXTERIOR PANEL REMOVAL
WARNING
To prevent hazard in servicing the cooker, be
certain the cold water shut-off valve is closed,
and the electrical disconnect circuit breaker
for the Cooker unit is OFF before removing
side panels.
Access to all internal plumbing and electrical assemblies
is from the right side. The right-side panel is removed by
removing the bottom screws from panel.

WIRING DIAGRAMS
3E-10067R8

WIRING DIAGRAMS
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WIRING DIAGRAMS
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