Specifications

TROUBLE SHOOTING PROCEDURES FOR QUALIFIED
SERVICE PERSONNEL ONLY
PROBLEM POSSIBLE CAUSES SOLUTIONS OR REMEDIES
Line Fuse
or
Circuit Breaker
Check for circuit overload before resetting
breaker or replacing fuse.
Hi-Limit Switch If Hi-Limit switch opens when water temp.
reaches 200 degree F, replace switch.
No voltage reading at
element
a. Defective
thermostat
b. Defective Hi-
Limit switch
Check voltage across terminals 1 and 3
of
Hi-Limit switch. If no reading r
eplace
thermostat.
Check voltage across terminals 2 and 4.
If
no reading —
depress red button. Still no
reading — replace Hi-Limit switch.
Water fails to heat
Thermostat Pilot light should be on when thermostat
is in the full on position (#5 position). If
not — replace thermostat and recalibrate
(see calibration). Power supply should
meet or exceed power requirements of
water boiler. Check data label on control
box for power requirements.
Stuck valve Replace valve
Worn valve seat Replace valve
Water does not
stop filling
Float ball filled
with water due to
leak
Replace float ball
Stuck filling
valve
Check float ball. It should move easily up
and down. If not — replace valve.
Hung up float If float ball linkage does not move freely,
replace valve
Water does not fill
Water line
clogged
Shut off water supply. Disconnect inlet
line. Clean or replace.
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