TROUBLESHOOTING
SYMPTOM “A”: NO HEAT, INDICATOR LIGHT – OFF
1) ELECTRIC SUPPLY IS OFF
Ensure the breaker is properly connected to the contactor. (see Fig 2b)
Check the main circuit breaker and reset it to “on”. (see Fig 3)
2) NO OR LOW WATER FLOW
Ensure that the minimum flow rate to switch on your heater is met.
Minimum flow rate = 0.70 gallons per minute. Check that the inlet filter screen is clear from
any debris. This is located in the brass inlet boss. (see Fig 2a)
3) WATER CONNECTIONS ARE REVERSED
Cold water inlet = right side, hot water outlet = left side.
4) ELEMENT BURNED OUT
TURN OFF THE MAIN CIRCUIT BREAKER!
Using an ohmmeter test the resistance of the heating element
across the two threaded termination rods on top of the element.
The resistance reading should be 4-15 ohms. If the resistance
is much greater than this value, call Eemax for a replacement element.
SYMPTOM “B”: LOW OR NO HEAT, INDICATOR LIGHT - ON
1) WATER FLOW TOO HIGH
Reduce the water flow by adjusting the outlet ball valve.
2) INCORRECT POWER SUPPLY
Make sure that the unit is connected to the voltage supply specified on the rating label on
the front cover of the unit.
3) ELEMENT BURNED OUT
TURN OFF THE MAIN CIRCUIT BREAKER!
Repeat the steps from paragraph 4 above.
9
Figure 5
