Market Forge Industries ST-12-TGG, Инструкция по установке, эксплуатации и обслуживанию, Страница: 16 / 40

M
ARKET
F
ORGE
I
NDUSTRIES
, I
NC
.
35 G
ARVEY
S
TREET
E
VERETT
, MA 02149
T
EL
: 617-387-4100 T
ELEX
: 91-9494
F
AX
: 617-387-4456 O
UTSIDE
MA: 800-227-2659
Form No. S-4846 Rev. A 11/98
4. TROUBLESHOOTING
4.1 GENERAL
The information in this section is intended to assist
both the operator and service personnel in locating the
general source of problems that may occur with the
cooker. Before following any of the procedures given in
this section, the operator should be thoroughly familiar
with the operating instructions and the function of all
controls that are described in Section 3. If the problem
cannot be readily corrected, the operator should con-
tact the nearest Market Forge service agency for as-
sistance.
4.2 TROUBLESHOOTING GUIDE
A troubleshooting guide for use by service personnel
is given in Table 4-1.
4.3 ELECTRICAL TROUBLESHOOTING
PROCEDURES
Before performing the troubleshooting procedures in
this section, the serviceman must be familiar with the
function of all controls as described in Section 3.
The electrical troubleshooting procedures that follow
require access to components and terminals of the elec-
trical control panel shown in Figure 7-3. Electrical con-
trols are reached by removing screws that fasten the
control panel to the frame. The panel may be pulled for-
ward for testing while interconnected to the cooker cir-
cuits or disconnected at the pin connection for complete
removal and repair.
TABLE 4-1
GENERAL TROUBLE-SHOOTING GUIDE
PROBLEM PROBABLE CAUSE REMEDY
1. POWER
LIGHT DOES NOT
COME ON WHEN
POWER
SWITCH IS PRESSED INTO THE
ON
POSITION
.
a. No 120V power to unit.
b. Faulty POWER switch. a. Be sure 120V power supply is on.
b. Check/replace POWER switch
(P/n 08-6549 )
2. W
ATER ENTERS THE STEAM
GENERATOR VERY SLOWLY
.
a. Dirty strainer screen in the
water fill solenoid valve.
b. Dirt or lime accumulation
on seat of water fill
solenoid valve.
c. Lower water pressure.
a. Clean/replace strainer screen.
b. Clean valve seat.
c. Check inlet pressure (25–50 psi).
3. S
TEAM GENERATOR WILL NOT
FILL
.
a. Faulty generator fill
solenoid valve.
b. Faulty generator drain
solenoid valve.
c. Lime build-up on probe.
a. If 120V is verified at the fill solenoid coil
(see Fig. ___), but the valve fails to open,
replace the valve (P/n 08-6498).
b. If 120V is verified at the drain solenoid coil
(see Fig. 7.4), but the valve fails to close,
replace valve (P/n
08-5021 ).
c. Clean or replace probe (P/n 08-6337 ).
4. READY
LIGHT WILL NOT COME
ON
.
a. Faulty 195°F generator
thermostat.
b. Lime build-up on probe.
a. Check/replace thermostat (P/n 08-6449).
b. Clean or replace probe (P/n 08-6337 ).
4-1