Atmor Thermo Pro2 Series User Manual

16
13. Troubleshooting
Before calling for service, check the troubleshooting list of common issues.
If you are unable to resolve a problem, contact your locally authorized distributor.
PROBLEM
ISSUE
POSSIBLE CAUSE SOLUTION
No hot water
and display do
NOT light up
Power outage or faulty
wiring.
Check the power supply. Check the circuit breakers.
Make sure the breakers at main electrical panel are ON. You may
have a faulty breaker or unit may be wired incorrectly.
Make sure the shuto valve on the unit’s incoming water supply line
is fully open.
The ow rate needed
to activate the heating
element (0.5 gpm) has not
been reached.
Increase the ow rate from the water supply source.
Clean the lter screen on the unit’s water inlet.
No hot water
and display
DOES light up
Reset the unit Refer to manual (Page 18) for diagram of reset points.
Make sure to shut all power on your breaker panel before
attempting to reset unit. All resets must be pressed.
Potential internal part
failure
Please call us for further technical assistance.
Water is
heated, but not
hot enough.
The water ow rate
exceeds the heating
capacity of the heater.
Reduce the water ow rate at the faucet or slightly close the shuto
valve on the unit’s incoming water supply line to reduce the water
ow rate.
Voltage less than 240 Volts The heating elements on your water heater are designed for 240
volts. When used with a lower voltage, they produce less heating
power. You may need to upgrade to a larger input heater.
Crossed Wires. If it’s a new installation, double check the wiring to conrm that it is
correct.
Temperature setting is too
low.
Increase the temperature setting on the unit.
Water pressure is less than
0.5 BAR (7 psi).
Make sure the shuto valve is fully open, and the water supply line is
not blocked.
Mixing too much cold
water
You do not need to mix as much cold water with your tankless water
heater compared to when you use a conventional water heater. You
may also have an anti- scald feature on your faucet that is mixing
cold water. These types of faucets can usually be adjusted to reduce
the amount of cold water mixed.
Thermal loss due to long
pipe run.
As the hot water from the heater runs through the hot water delivery
system to your faucet, some heat will be lost especially if it has long
distance to travel or the pipes are cold. This is normal. You can
compensate for this by increasing the setting on your water heater if
you need/ want hotter water.
Water is
heated, but not
hot enough.
Voltage less than 240 Volts The computer chips in your tankless water heater are programmed
with the expectation that your incoming line voltage is 240 volts. If
you have less than 240 volts [i.e. 208V or 220V], it may aect the
reading on your water heater’s digital display and cause it to read
slightly higher than the actual output temperature. To compensate
for this, increase the setting on your water heater if you need or want
hotter water.

Atmor Thermo Pro2 Series Specifications

General

Brand	Atmor
Model	Thermo Pro2 Series
Category	Water Heater
Language	English