14
EN
Table 6 - Troubleshooting
If draining of the water heater is necessary, open the relief valve or a hot water tap to prevent vacuum buildup
in the tank and piping.
The risk of scald injury increases as you increase water temperature. A lower setting is more economical and
reduces the risk of scalding. Use a water tempering or mixing valve and extreme caution when using hot water
to avoid scald injury. Consult codes for conformance. Failure to follow the instructions in this warning statement
could result in serious personal injury or death from scalds.
Be sure to disconnect electrical power before performing service. Failure to do so could result in electrical shock,
property damage, serious personal injury, or death.
A. Resetting the High Limit Switches
Occasionally, the high temperature limit shut off device may trip the
resets. This occurs when water temperature exceeds 185
o
F / 85
o
C. The
shut-off devices may also trigger due to a power outage or electrical
storm.
To reach the high limit switches:
• Shut
off the circuit breaker and remove the front cover.
• Locate the resets to the right of the heating unit canister. See
Figure 12.
• Firmly press the reset switches with the tip of a ball point pen or
similar object.
Call a technician if the high limits need to be reset frequently.
B. Checking Thermostat Operation
To check thermostat operation:
• Turn the temperature dial from off to low. Open a hot water
outlet to create a demand on the hot water heater. Check water
Problem
Possible Cause
Solution
Water Temperature
Varies from Hot to
Cold During Use
Water pressure has dropped
below minimum level
Increase the fl ow rate from the water supply
source
No Hot Water
with the Unit’s
Water Supply Line
Shutoff Valve Fully
Open
Power outage or faulty wiring
Check the power supply and circuit breaker.
The fl ow rate needed to activate
the heating element (0.5 gpm)
has not been reached.
Increase the fl ow rate from the water supply
source.
Clean the fi lter screen on the unit’s water inlet by
turning the circuit breaker off , opening the valve
to release pressure from the unit, and turning the
circuit breaker on.
High Limit Has Been Tripped
Check that the high limit reset buttons are pushed
in. Follow steps to reset the switch, this manual.
Leaks
Check for leaks at fi ttings
Check water fi ttings. Remove front cover and
inspect heating element gasket.
If tank is leaking
Turn off water supply at the shutoff valve. Shut off
power to the water heater, and review warranty
to see if heater is still within warranty period.
57
85
85
Resets Located
Here
Figure 12 - Reset Locations
temperature at the outlet with a thermometer. If water is too hot or water does not get hot, turn off the
power supply and call a qualifi ed service technician.
• If the water is heating properly, turn the dial to the desired setting.
NOTE:
A lower setting is more economical
and reduces the risk of scalding.
NOTE:
After adjusting the water temperature, allow the heater enough time to heat the water to temperature.