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Paloma PH-28R OFN - User Manual

Paloma PH-28R OFN
39 pages
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Indoor Water Heater
Outdoor Water Heater
FOR YOUR SAFETY!
Do not store or use gasoline or other
flammable vapors or liquids or other
combustible materials in the vicinity of this
or any other appliance. To do so may result
in an explosion or fire.
WHAT TO DO IF YOU SMELL GAS
l Do not try to light any appliance.
l Do not touch any electrical switch; do not
use any phone in your building.
l Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
l If you cannot reach your gas supplier, call
the fire department.
l Do not return to your home until authorized
by the gas supplier or fire department.
Improper installation, adjustment,
alteration, service or maintenance can cause
property damage, personal injury or death.
Refer to this manual. Installation and service
must be performed by a qualified installer,
service agency or the gas supplier.
WARNING: If the information in these instructions is not followed exactly,
a fire or explosion may result, causing property damage, personal injury or death.
The purpose of this manual is twofold: one, to provide the installer with
the basic directions and recommendations for the proper installation and
adjustment of the water heater; and two, to the owner–operator, to
explain the features, operation, safety precautions, maintenance and
troubleshooting of the water heater. This manual also includes a parts
list.
It is very important that all persons who are expected to install, operate
or adjust this water heater read the instructions carefully so they may
understand how to perform these operations. If you don’t understand
these instructions or any terms within it, seek professional assistance.
Any questions regarding the operation, maintenance, service or
warranty of this water heater should be directed to the seller from whom
it was purchased, local distributor or Paloma.
Do not destroy this manual. Please read carefully and keep in a safe
place for future reference.
Recognize this symbol as an indication of Important Safety
Information!
California Proposition 65 Warning: This product contains
chemicals known to the State of California to cause cancer, birth
defects or other reproductive harm.
Installation and Operating Instruction Manual
With Installation Instructions for the Installer
Tankless Water Heater
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Warning: This water heater is not suitable
for use in manufactured (mobile) homes!
Indoor and Outdoor Gas
CERTIFIED
R
Models:
PH-28R IFSN (Natural Gas); PH-28R IFSP (L.P. Gas): Residential Indoor
PH-28R OFN (Natural Gas); PH-28R OFP (L.P. Gas): Residential Outdoor
PH-28C IFSN (Natural Gas); PH-28C IFSP (L.P. Gas): Commercial Indoor
PH-28C OFN (Natural Gas); PH-28C OFP (L.P. Gas): Commercial Outdoor

Questions and Answers

  • M
    Michael GillespieAug 8, 2025
    What to do if my Paloma PH-28R OFN Water Heater displays Error Code 11 or 12?
    • L
      Lisa EllisAug 8, 2025
      If your Paloma Water Heater is showing Error Code 11 or 12, the following could be the cause: * Make sure the gas shutoff valve is fully opened. * If gas service has been interrupted, contact your gas utility company. * For LP models, ensure the LP gas container is full or replace it with a new cylinder. * Bleed all air from the gas lines. * Ensure the appliance is properly grounded. * Verify that the gas line, meter, and regulator are sized properly, as low inlet gas pressure could be the issue. * Confirm that the correct gas type is being used.
  • B
    Brandon VasquezAug 13, 2025
    Why is the water from my Paloma PH-28R OFN not hot enough?
    • D
      debragonzalesAug 13, 2025
      If the water from your Paloma Water Heater isn't hot enough, the temperature setting might be too low, so try increasing it. Also, check that the gas valve is fully opened. If the gas supply pressure is low, contact your gas company to check the gas meter and piping size.
  • D
    Dawn GrossAug 16, 2025
    What should I do if my Paloma PH-28R OFN Water Heater displays Error Code 05 or 13?
    • G
      gordonaustinAug 17, 2025
      If your Paloma Water Heater displays Error Code 05 or 13, it could be due to a blocked air intake or vent termination. Remove any obstructions. Also, check if the room's ventilators or other vents are blocked and clean any dust or grease buildup. Ensure the room has fresh air, especially if using a fireplace or space heater. Reduce ventilation from other equipment if it's causing a lack of air intake to the water heater. Avoid direct steam contact with the unit and clean the air intake filter.
  • C
    Christopher TownsendAug 21, 2025
    Why is the water from my Paloma PH-28R OFN Water Heater too hot?
    • J
      Jennifer FordAug 21, 2025
      If the water from your Paloma Water Heater is too hot, try decreasing the temperature setting. Also, check that the water shutoff valve is fully opened. If only a small amount of water has been heated, allow more water to flow.
  • C
    Cody ReedAug 26, 2025
    What should I do if my Paloma PH-28R OFN displays Error Code 15?
    • M
      Michelle TerryAug 26, 2025
      If your Paloma Water Heater is showing Error Code 15, make sure the hot water faucet is opened enough to secure sufficient volume.
  • B
    Blake HallAug 29, 2025
    What does Error Code 99 mean on my Paloma PH-28R OFN and how do I fix it?
    • L
      Lisa HubbardAug 29, 2025
      Error Code 99 on your Paloma Water Heater indicates a decrease in blower motor ventilation volume. To resolve this, clean any blockage from the heat exchanger fins and/or blower motor.
  • C
    christopher33Nov 3, 2025
    Why is my Paloma PH-28R OFN Water Heater not producing enough hot water?
    • S
      Sherri MirandaNov 3, 2025
      There might be several reasons why your Paloma Water Heater isn't producing enough hot water. Here are a few things to check: * Ensure the water shutoff valve and hot water faucet are fully opened. * Verify that the unit is turned 'ON' via the remote control. * Confirm that the temperature setting isn't too low and increase it if needed. * Check for frozen water pipes and allow them to thaw. * Make sure that there is adequate power and water supply. Additionally, a clogged water inlet filter or fixture aerator could be the culprit. Clean them to see if that resolves the issue. If you see an error code on the remote control, consult the error code instructions. If applicable, check the mixing valve and replace it if it malfunctions. Finally, ensure there's enough water demand by...

Summary

Safety First: Gas Leak Procedures

What to Do If You Smell Gas

Steps to follow when gas is detected to prevent fire or explosion.

Water Temperature Safety and Scald Prevention

Outdoor Water Heater Installation

Indoor Water Heater Installation

Venting System Installation

Water Supply Connections and Thermal Expansion

Remote Control Installation

Electrical Connections

Lighting and Operating the Water Heater

Pre-Operation Safety Checks and Lighting Procedure

Critical safety information and step-by-step instructions for initial operation.

Care and Cleaning Procedures

Draining and Freeze Protection

Troubleshooting Common Issues

No Hot Water and Temperature Problems

Identifies causes and solutions for lack of hot water or incorrect temperatures.

Limited Warranty Information

Paloma PH-28R OFN Specifications

General IconGeneral
Voltage120V
Weight25 lbs
Fuel TypeNatural Gas
Maximum Flow Rate2.8 GPM
Ignition TypeElectronic
Thermal Efficiency82%
TypeTankless
Water Flow Rate2.8 GPM
Flow Rate2.8 GPM

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