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American Metal Ware 87710E Coffee Urn Page 15
Problem
Possible Cause
Service Check
Remedy
Remove and clean micromesh
screen filter located in water strainer.
If voltage missing or incorrect, check
wiring for looseness, breaks, and
proper connections.
Clean out and/or replace plunger
assembly or entire valve. May
require new coil. Caution is advised
to avoid damage to valve. See valve
instruction sheet.
Replace coil. Also check for frozen
plunger. See valve instruction sheet.
Replace electrode assembly. If no
remedy, check for improper wiring
(cut insulation) or electrode tips
touching metal.
Replace Dual Level Control.
Replace electrode assembly.
Push wire lead connector securely
onto terminal(s). Replace connector
if wire is frayed or broken.
Replace Dual Level Control.
Water pressure before
strainer and not after.
Check for 120V AC
across “H” and “N” ter-
minals.
Disassemble.
Jumper from “FILL” ter-
minal to “H” terminal
does not start fill.
Tank fills with electrode
wire disconnected from
“HI” terminal.
Tank does not fill with
electrode wire
disconnected from
“HI” terminal.
Tank fills with electrode
wire disconnected from
“HI” terminal.
Visual. Check “C” and
“HI” probe terminals as
well as “FILL”. Also
check neutral (white)
wire at valve.
Tank does not fill with
electrode wires discon-
nected from “XL” and
“H” terminals.
3) Water strainer
clogged.
4) No power on Dual
Level Control.
5) Fill solenoid valve
clogged with scale or
frozen closed.
6) Fill solenoid valve
coil inoperative.
7) Electrodes shorting
to ground.
8) Dual Level Control
faulty.
1) Electrode shorting to
ground completely or
intermittently.
2) Loose connection.
3) Dual Level Control
faulty.
C) Auto refill fails to fill
water tank (continued).
D) Auto Refill is erratic.
IV) Trouble Shooting Auto Refill, Low Water Cutoff, and Dual Level Control System (continued)