TROUBLESHOOTING
SYMPTOM: NO HEAT INDICATOR LIGHT OFF
1)ELECTRIC SUPPLY IS OFF
Turn on the main circuit breaker.
2)NO OR LOW WATER FLOW
Ensure that the minimum flow rate to switch on your heater is met,
for this figure refer to the front cover of this manual.
Also check that the inlet filter screen is clear from any debris.
3)WATER CONNECTIONS ARE REVERSED
Cold water inlet = right side, hot water outlet = left side.
4)ELEMENT BURNED OUT
TURN OFF THE MAIN BREAKER!
Using an ohmmeter test the resistance of the heating element
across the two threaded termination rods on top of the element.
See the front cover of this manual for the correct value.
If the resistance is much greater than the correct value, call
your supplier for a replacement element.
SYMPTOM: NO HEAT OR LOW TEMPERATURE WITH
INDICATOR LIGHT ON
1)WATER FLOW TOO HIGH
Reduce the water flow by using an outlet ball valve. See page 5
for temperature rise at various flow rates.
2)INCORRECT POWER SUPPLY
Make sure that the unit is connected to the voltage supply specified
on the rating label on the the front cover of the unit and no other.
3)ELEMENT BURNED OUT
TURN OFF THE MAIN BREAKER!
Repeat the steps from paragraph 4 above.
4)THERMOSTAT ADJUSTMENT SCREW NOT TURNED UP
Turn the thermostat adjustment screw clockwise in small
increments until the indicator light remains on. Take care not to
force the screw past it’s stop position.
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