Troubleshooting - Ariston GL 2.5 User Manual

Changing 1. Turn off power supply and drain the heater (see previous section).
2. Remove the heating element (see section on Removing the Heating Element).
the heating
3. Install new element with gasket, making sure the gasket and element are positioned
element
correctly. Tighten the retaining nuts and make the wire connections.
4. Refill tank with water before restoring power.
Changing 1. Turn off power supply.
2. Disconnect the 2 push/pull type wires on thermostat.
the
3. Loosen the two brass screws at right side of thermostat and pull wires out.
thermostat
4. Unscrew and remove the two phillips screws holding the thermostat down.
5. Install new thermostat and re-attach wiring and screws.
Resetting Occasionally, the high temperature limit shut off device may trigger and shut the
system down. This occurs when water temperature exceeds 190° F and shuts off
High Limit
power to the heating element. The shut off device may also trigger from a power
Switch
outage or electrical storm.
To reset:
1) IMPORTANT: Disconnect heater from electrical power.
2) Remove front cover plate (C fig. 3/4).
3) Firmly press reset button (B fig. 3/5).
4) Replace cover plate, reconnect power.
5) IMPORTANT: Check the operation of the thermostat, turn temperature dial from
high to low, if the red light does not go off on low setting, turn off power supply and
call a service person to replace thermostat.
6) If the system works, place dial setting to desired setting.
Note: a lower setting is more economical, and reduces the risk of scalding.
CAUTION: Call a technician if the high limit needs to be reset frequently.

Troubleshooting

Water does
1. Make sure the power supply is on and working.
not get hot 2. If light does not come on, check that the reset button is pushed in; follow steps from
previous section.
3. If the indicator light works properly but temperature does not get hot a 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.
4. Replace heating element (see previous section on changing the heating element).
Light not on 1. If the light does not come on, but water gets hot, check for faulty bulb.
2. Check reset button; follow steps from previous section.
Brown water
1. Brown or rusty water indicates a "spent" anode rod. Replace anode rod.
1. Smelly water could be due to an unusual reaction between local water and the
Odor in water heater's anode rod. Check anode rod.
Water is too 1. Remove cover plate and turn the temperature selector dial (D fig. 3/5) counter
clockwise to lower temperature. If temperature never lowers then replace thermostat.
hot
Water not 1. Under Instructions for Use see Temperature Setting instruction.
hot enough
1. Check water fittings and T & P fitting on top of tank.
Leaking
2. Remove front cover and inspect heating element gasket.
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