Hubbell Electric Heater Company CE110 - Manual (Page 13)

LONG TERM SHUT DOWN
1. If the water heater is to remain idle for an extended period of time, the power and
water to the heater should be turned off to conserve energy.
2. The water heater and piping should be drained, if they might be subjected to freezing
temperatures.
3. After a long shutdown period, the heater's operations and controls should be checked
by qualified service personnel.
4. Make certain the water heater is filled before placing it in operation.
EMERGENCY
1. Should the heater be subject to flood, fire, or other damaging conditions, turn off the
power and water to the heater.
2. DO NOT place water heater in operation again until it has been thoroughly checked
by qualified service personnel.
SECTION IV
– TROUBLESHOOTING
Symptom Probable Cause Corrective Action / Remedy
No hot water Circuit breaker tripped at
source. Reset circuit breaker.
High limit switch tripped. Reset high limit switch.
Loose wires. Tighten wires. Torque screws per
torque chart included in Section VI.
Heating element inoperable. Check heating element operation by
clamping an Amprobe around each
wire to the element. The ampere
reading should agree with the
nameplate ‘AMP’ figure.
Low line voltage. Have source electrical system
checked by an electrician.
Faulty thermostat. Move thermostat dial through full
range. A definite ‘click’ should be
heard. If not, replace thermostat.
Water temperature
below settings at
all times Faulty thermostat. Check thermostat adjustment.
Monitor thermostat as described in
Section III, Quarterly Inspection.
Replace if necessary.
Relief valve
discharges
continuously Excessive temperature or
pressure in tank Temperature and pressure relief
valves are made to operate if the
water temperature exceeds 210
°F or
water pressure exceeds the pressure
rating of the safety relief valve. If
trouble is excessive temperature, then
thermostat is not shutting off at the
right setting and thermostat must be
replaced.
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