HTP EVR 040, Use And Care Manual, Page: 17 / 22

17
Water too hot or not hot
enough
1. Thermostat setting too high or low
2. Thermostat out of calibration
3. Thermostat access panel(s) and/or insulation
not in place
4. Thermostat(s) not resting tightly against
mounting plate 1. Change setting as required
2. *Replace
3. Inspect and replace as needed
4. Inspect and insure that retaining spring(s) or
mounting screws hold thermostat(s) tightly to
mounting plates
Noisy heating
element(s)
Hard water scale built up on element(s) *Remove and clean
Water leaks
1. Loose connection between inlet/outlet piping,
relief valve, or drain valve and hex nut union on
tank fittings
2. Damaged seal ring washer
3. Gasket around heating element(s) 1. Tighten hex nut union fitting
2. Replace seal rings as required
3. Inspect and replace gasket if necessary
Leaking Temperature
and Pressure Relief
Valve
1. Improperly seated valve
2. Thermal expansion in closed water system
3. Damaged/defective valve 1. Attempt to reseat valve by opening and closing
handle
2. Install a thermal expansion tank
3. Replace relief valve
NOTE: DO NOT plug T&P valve under any
circumstances
Hot Water Odor
1. High sulfate or mineral content in water supply.
2. Bacteria in water supply. 1. Drain and flush water heater. Refill
2. Check with local water treatment specialist or
utility to identify and address this problem.
Table 5
– Troubleshooting – *NOTE: This maintenance should only be performed by a qualified service provider.