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INTRODUCTION
Read and follow all safety messages
and instructions in this handbook and
on the product labeling.
This is the safety alert
symbol. It is used to alert
you to potential physical
injury hazards. Obey all safety
messages that follow this symbol to
avoid possible property damage,
serious injury or death. Do not remove
any permanent instructions, labels, or
the rating plate from either the outside
of the water heater or the inside of the
access panels.
DANGER indicates a hazardous
situation that, if not avoided, will
result in death or serious injury.
WARNING indicates a hazardous
situation that, if not avoided, could
result in death or serious injury.
CAUTION indicates a hazardous
situation that, if not avoided, could
result in minor or moderate injury.
NOTICE indicates practices not
related to physical injury.
WARNING
●
Installation and service must be
performed by a qualified installer
(such as a licensed plumber or gas
fitter).
●
The installer/service agent (licensed
professional) is responsible for
correctly installing or servicing your
water heater and for compliance with
all national, state/provincial, and local
codes.
●
Failure to comply with these warnings
could result in death, explosion, fire,
or carbon monoxide poisoning.
CAUTION
Wear eye protection during water
heater assembly or disassembly.
Failure to do so could lead to personal
injury.
This handbook provides the necessary
information for troubleshooting the
160X3P, 180X3P and 199X3P tankless
water heaters. It will be effective in
helping your troubleshooting needs as
long as the instructions are followed in
the intended order. Here is how to use
this manual:
●
First, refer to the Installation
Manual as the primary source
of information. Refer to it along
side this manual throughout the
troubleshooting process.
●
Before troubleshooting, if you are
unfamiliar with how a tankless unit
operates, read "Normal Operation"
on page 6.
●
Before troubleshooting a new
installation, use the installation
manual.
●
Before troubleshooting, first go
through the "Preliminary Checklist"
on page 6. It will identify the most
common and frequent problems and
provide you with general knowledge
to help narrow down the information
you need.
●
If the water heater is in fault and
is displaying an error code, refer
to "Error Codes" on page 11. If
you have not received an error
code, refer to "General Issues" on
page 8.
On-Demand Water Heater Service Handbook for X3P Models
If you have any problems or questions
regarding this equipment, consult the
technical service department or the local
service agent.
General Installa on
Guidelines
1. Follow all local codes, or in the
absence of local codes, follow the
current edition of the National Fuel
Gas Code: ANSI Z223.1/NFPA 54 in
the USA or B149.1 (Natural Gas and
Propane Installation Code) in Canada.
2. Properly ground the unit in
accordance with all local codes
or, in the absence of local codes,
with the National Electrical Codes:
ANSI/NFPA 70 in the USA or CSA
standard C22.1, Canada Electrical
Code, Part 1 in Canada.
3. Carefully plan where you intend to
install your water heater.
4. Check the rating plate located on
the right side of the water heater for
the correct GAS PRESSURE, WATER
PRESSURE, ELECTRIC RATING and GAS
TYPE. NOTE: This water heater's gas
type is field convertible, confirm the
orifice installed matches the gas type
supplied. See Removing, Replacing,
and Verifying the Gas Orifice
Assembly on page 47.
NOTE: If this unit does not match your
requirements, do not install.
If any problem occurs, turn off all hot
water taps and turn off the gas. Then
call a trained technician or the gas
company.
•
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