Groen DHS-40, Руководство оператора

Страница: 20 / 40

20 OM-DHS
Troubleshooting
SYMPTOM WHO
WHAT TO CHECK
X indicates items which must be performed by an authorized technician.
Spark is present but the pilot
will not light.
Auth Service
Rep Only
a. That the pilot valve is securely connected to terminals. X
b. For 24 VAC at terminals PV and PV/MV. If 24V is not present, replace the ignition
control module. X
b. That gas pressure is at least 3.5” W.C.(8.7818 b).
c. For gas at the pilot. If it is not flowing:
(1) Check the pilot gas line for kinks and obstructions. X
(2) Clean orifice, if necessary. X
(3) Check magnetic operator for pilot valve on gas valve. Repair or replace as
necessary. X
d. That the pilot spark gap is located in the pilot gas stream. If not, adjust or replace
the pilot burner. X
e. For drafts. Shield the pilot burner, if necessary. X
Pilot lights, but main burner
will not come on and spark
does not stay on.
Auth Service
Rep Only
a. For 24 V between terminals MV and PV/MV while pilot is burning. If
24V is not present, replace the ignition control module. X
b. That gas pressure is at least 3.5” W.C.(8.7818 b). X
c. Electrical connections of the main valve to terminals, to assure that they are
securely attached. Check magnetic operator for main valve on gas valve. Repair
or replace as necessary. X
Pilot lights, but main burner
will not come on, the spark
stays on.
Auth Service
Rep Only
a. Check for bad burner ground. If necessary, repair with high temperature wire.
X
b. Pilot burner ceramic insulator for cracks. X
c. That cable is not grounded out. If it is, correct the ground-out condition or
replace cable. X
d. For proper gas pressure. X
e. Clean pilot assembly, or replace if necessary. X
f. Tighten all mechanical and electrical connections. X
g. If the pilot flame is weak, increase pilot orifice size. X
h. Replace ignition control module. X
Main burner comes on but
will not stay on.
Auth Service
Rep Only
a. Check burner ground for bad wire or connection. Replace if necessary with
high temperature wire. X
b. Check for low gas supply pressure. If necessary, replace ignition control
module. X
Safety valve/pressure relief
valve leaks a small amount
of steam when the kettle is
operating.
User a. For contamination that prevents seating of valve. With full pressure in
the jacket, pull the lever all the way briefly to blow the valve clean, then
let the leaver snap back to seat the valve.
Auth Service
Rep Only
b. Pressure relief valve for defects. Replace any defective valve with an
identical valve. X
Kettle is hard to tilt. User a. Gears for foreign materials, and lubrication.
Auth Service
Rep Only
a. Tilting gear and worm for contamination and for proper alignment and
lubrication. X
b. Gears for alignment.
c. Worm gears or broken gears.