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7 Troubleshooting
7.1 Fault Assessment and Troubleshooting
Problem
Water does not get hot
Light not on
Brown water
Leaking
7.2 Resetting High Limit Switch
Occasionally, the high temperature limit shut off
device may trip the reset. This occurs when water
temperature exceeds 190 °F. The shut off device
may also trigger from a power outage or electrical
storm. To reach the thermostat:
Disconnect power cord and remove installation
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cover.
Firmly press reset button (Fig. 9, [B]) with the tip
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of a ball point pen or similar object.
Fig. 9
Solution
Make sure the power supply is on and working.
If light does not come on, check that the high limit reset button is pushed in;
follow steps in section 7.1.
If the indicator light works properly but temperature does not get hot at the tap, test for a
plumbing crossover; shut off cold supply to heater and open hot water tap. There should
be no water flowing. Any continued flow indicates a crossover which will effect the
temperature and will need to be corrected.
Call a qualified service technician to test the resistance of the heating element (8-10 ohms).
Heating element should be replaced if readings are outside these values.
If the light does not come on, but water gets hot, check for faulty bulb.
Check high limit reset button;
follow steps in section 7.1.
Brown or rusty water indicates a "spent" anode rod and possible deterioration of the tank body.
Inspect the tank for leaks.
Check anode rod (see section on changing the anode rod).
Check water fittings and T & P fitting on top of tank.
Remove front cover and inspect heating element gasket.
If tank is leaking call Fogatti Water Heating for warranty claim if still within warranty period.
Check anode rod (see section on changing the anode rod).
B
A click indicates the reset was tripped.
Reconnect power
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IMPORTANT:
Check the operation of the thermostat: Turn
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temperature dial from high to low.
If the red light does not go off on low setting:
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Turn off power supply and call a service person
to replace the thermostat.
If the red light does go off the thermostat is
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working well: Place dial setting to desired setting.
NOTICE
A lower setting is more economical and
reduces the risk of scalding.
Replace cover plate.
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CAUTION
Call a technician if the high limit needs to
be reset frequently.
Troubleshooting
11
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